SDLE 2022 Part 7 Past Paper PDF

SDLE by " ‫" رفيع المقام‬ Contents ‫ رفيع المقام‬-SDLE 2022 part 7 Contents .................................................................................................................................................................. 1 Reference ...................................................

SDLE by " ‫" رفيع المقام‬ Contents ‫ رفيع المقام‬-SDLE 2022 part 7 Contents .................................................................................................................................................................. 1 Reference ................................................................................................................................................................ 1 Endo ........................................................................................................................................................................ 2 Resto...................................................................................................................................................................... 20 Perio ...................................................................................................................................................................... 32 Implant ................................................................................................................................................................. 46 Fixed...................................................................................................................................................................... 52 Removable ............................................................................................................................................................ 63 Ortho ..................................................................................................................................................................... 84 Pedo ....................................................................................................................................................................... 90 Professionalism and Bioethics , Infection control and patient safety.............................................................. 94 Oral medicine, Oral Surgery and Medically Compromised Patients ........................................................... 101 Reference 8-7-6 ‫وه كل من شهر جون جوالي واوقست‬ ‫ ي‬2022 ‫الملف يحتوي عىل أسئلة ثالث شهور لسنة‬ ‫ األجوبة قد تحتوي عىل بعض األخطاء فتاكدو منها بنفسكم واذا فيه أي‬.‫باذن هللا بيغنيكم عن الملفات المتبقية لهذه الشهور‬ ‫الىل جبت منها األسئلة‬ ‫تصحيح‬ ‫ي‬ ‫كلمون عشان اعدل الملف عن طريق االيميل ي‬ ‫وف الرابط تحت بتحصلون الملفات األساسية ي‬ [email protected] 1. 2. 3. https://drive.google.com/drive/folders/1b1FEfswevuu0w0kfBIctmJUa1_JR75wj?usp=shari ng https://drive.google.com/drive/folders/1abJl7_z3DT51hDdTSV0u349aa1SAhgNf?usp=shar ing https://drive.google.com/drive/folders/1aao6__4YUaxkyh5CySuNrmKy7RmCLpsi?usp=sh aring Endo 1.A cracked tooth is diagnosed by? A. Block line in Transillumination and pain when releasing the bite 2.Splinting time for teeth with alveolar fractures is ? A. 2 weeks B. 3 weeks C. 4 weeks 3.file with active cutting tip: A. Reamer B. H file C. K file. 4.file used to negotiate calcified canal: A. Reamer B. H file C. K file. D. barbed broach 5.Cutting length of ISO file : A. 11. B. 16. 6.Dull pain transmitted by A. unmyelinated fiber. 7.What is the best material that will allow tissue healing around apex? A. calcium hydroxide 8.Patency file: A. Small flexible K-file, which is passively moved through the apical constriction. B. File used circumferentially to prevent lateral canal blockage 9.Fungi in failed root canals treatments: A. Candida albicans. 10.The highest ph: A. EDTA. B. Saline C. Chx D. Naocl. 11.Ph of sodium hypochlorite: A. 7 B. 11 12.Extrusion of Gutta percha and sealer out in the distal side of mesial root of molar: A. Furcal perforation B. Strip perforation. 13.Upper first molar with good endodontic treatment came after one month with pain: A. Missed canal. 14.Dentist start root canal treatment for tooth previously treated by other dentist when he just put apex locator produce sound: A. Coronal perforation 15.Radiograph of tooth with periapical radiolucency and after 8 months of root canal treatment no symptoms and in radiograph the radiolucent area is decrease: A. Healing B. Healed 16.Tooth show all the 8 configurations: A. Upper 5 . B. Upper 6 C. Lower 6 D. Lower 5 17.electric pulp test act on: A. neural element of pulp. 18.Best for perforation: A. Bioceramic.(MTA) 19.Fracture involves cementum enamel dentin: A. crown-root fracture without pulp involvement 20.Concussion : A. injury to the tooth-supporting structures, without displacement of the tooth. a marked tenderness to percussion 21.What intra canal medicament shouldn't be used fi pt is allergic to iodine? A. iodine potassium iodide (IKI) B. Hydrogen peroxide C. Chx D. Calcium hydroxide 22.Patient came after years for check-up and you find internal resorption and asymptotic, management? A. RCT B. Observe 23.External resorption treatment: A. RCT and calcium hydroxide. 24.Subluxation treatment: A. Semirigid splint for 2 to 3 weeks. • Normally No treatment. However, a flexible splint may used for patient comfort up to 2 week 25.during irrigation pain and perfuse bleeding? A. strip perforation B. sodium accident 26.swelling, pain and chlorine smell: A. Sodium hypochlorite accident 27.NaOcl accident result from: A. apical needle pressure 28.Irreversible pulpitis endodontic emergency treatment : A. Pulpotomy. 29.During instrumentation the master apical file did not reach the working length what is the management? A. Force lager file B. bypass with small, curved file C. enlarge the canal with ultrasonic D. dressed the canal with caoh 30.Constant canal in which ? A. Upper lateral B. Upper canine or upper central C. Lower central 31.Predominant bacteria in the necrotic pulp? A. Aerobic B. Anaerobic C. Facultative • Irreversible pulpitis : facultative bacteria • Necrotic pulp: anaerobic 32.What is the use of the file A. Empty the canal B. Shaping the canal 33.how much the percentage of having 1 canal with 2 foramens? A. 11 B. 22 • The thing they did not say for which tooth 34.what is the color of file size 35 ? A. Green 35.pic of apex locator and thy are saying that tooth was previously opened from another dr.as soon you enter the canal immediately it ring what is the reason ? A. Perforation (or if it touch the clap on the tooth or pfm crown) B. The hook is not placed C. The file is not placed 36.pic of coronal perforated tooth and what its prognosis? A. Good B. Fair C. Poor D. Questionable 37.what is the prognosis? A. Poor B. Good C. Fair D. Questionable 38.Radiolucent 1.5 cm semicircular around apex upper first and second premolar with no signs and symptoms A. Apical Scar B. Normal anatomical variation 39.Chelating agents remove? A. Organic material B. Inorganic material • Example: EDTA (Ethylenediaminetetraacetic acid 17% ) 40.NaOCl dissolves? A. Organic material B. Inorganic material 41.Best way to apply sealer into canal? A. Peeso reamer B. Lentulo spiral 42.Tooth without caries and have radiolucent cervically? A. VRF B. Cervical burn-out C. Periodontal abscess 43.Avulsed tooth 3 days ago and patient bring it in plastic bag, doctor decided to reimplant and fix it with? A. Functional Fixation 4-6 weeks B. Rigid appliance 4-6 weeks • Before 1 hour → flexible splint 2 weeks • After 1 hour → flexible splint 4 weeks 44.9 years old Patient with avulsed tooth came to the clinic with his tooth after 2 days in a dry plastic bag , what is the management? A. Immediate re implant B. RCT then reimplant C. FDP D. Implant 45.fluctuant swelling in periapical radiograph there radiolucent around apex of lower 6 how confirm A. MRI B. Vital test C. Panorama D. Cold test 46.long case about pt. feel pain when eat sweet and when make cold test still moment and relief A. Reversible pulpitis B. Irreversible pulpitis C. Abscess 47.Splitting time for Avulsion less than 60 min? A. 2 weeks B. 4 weeks C. 3 months D. 1 week 48.most complicate for MTA A. Discoloration 49.Getta-percha in mostly composed of? A. zinc oxide 50.Gutta percha components: • 20% gutta-percha (matrix), • 66% zinc oxide (filler), • 11% heavy metal sulfates (radiopacifiers) • 3% waxes and/or resins (plasticizers). 51.nickel rotary file A. K file B. Pro taper C. GG D. Ultrasonic 52.multiple questions about VRF diagnosis and management 53.Most complication of dental injury ? A. Avulsed 54.Question about fracture enamel and dentin ? A. In complete fracture 55.treatment of un complete fracture? A. Rct with crown B. Direct pulp caping C. Restoration D. Follow up 56.long scenario about two apical fracture file in upper 6 ? A. Rct bypass B. Surgery removes C. Extraction 57.avulsion case for pido patient after 30 minute what is your treatment A. do not reimplant the tooth 58.definition of Lateral luxation A. Lateral luxation is defined as a traumatic displacement of a tooth in any direction other than axially. Displacement is accompanied by comminution or fracture of either the labial or the palatal/lingual alveolar bone. 59.Splitting time for lateral laxation A. 4 weeks 60.Extent of spreader: A. 1-2 mm within the working length B. At apex C. Middle third 61.Mandibular molar, how many canals and where? A. 1 canal distal root, 1 canal mesial root. B. 1canal distal root, 2 canals mesial root. 62.Intrapulpal should have? A. back pressure 63.J-shaped on x-ray A. VRF 64.avulaed tooth what to check before reimplant A. panoramic B. cbct C. vertical bite wing D. horizontal bite wing 65.Pt complaining of pain on tooth #46 , pulp test: irreversible pulpits, there is radiolucency in the lower right side( in the angle of the mandibular area) and tooth #47 extracted. What you will first do with pt? A. RCT for tooth #46 B. Tell the pt about the missing area to replace it with implant C. Teel the pt about the radiolucency 66.K-file cross-section? A. Square 67.Motion of H file what motion? A. Filing motion 68.Circle in cross section: A. K file B. H file 69.file to remove GP? A. H file 70.Pink spot seen in: A. Internal resorption 71.preparation of the root canal up to: A. Minor apical constriction 72.How to calculate D16 for file 10? • 1st step: Divide the file number by 100: 10/100 = 0.10. • 2nd step: Multiply the D number with 0.02 (taper of file): 16*0.02= 0.32 • 3rd step: Add both numbers to each other: 0.10+0.32= 0.42. 73.Calcium hydroxide medicaments start work as a antibacterial after mechanical instrumentation A. 1hr B. 1 day C. 1 week ( 7 days ) D. 1 month 74.tooth with seldom 2 canals? A. lower central, lower second premolar B. distal root of lower molar C. distobuccal root of max molar 75.Rc - prep material for root canal preparation composition: A. 10% urea peroxide and 15% EDTA and glycol in an aqueous ointment base 76.Patient came to the clinic with trauma, tooth was vertically moved inside, what is the type of luxation? A. Intrusion B. Extrusion C. Lateral 77.intrusion less 7mm splinting for : A. 2 weeks B. 4 weeks 78.Patient with intrusion trauma to primary teeth What is the most probable consequence for permanent teeth? A. Loss vitality B. With be displaced buccally or palatally C. Hyperplasia D. Short roots 79.abnormal connection between pdl and pulp? A. VRF 80.what can cause dentinal tubule exposure? A. VRF B. post space C. development defect 81.bacteria in good endo put persistent infection? A. E.faecalis 82.Bacteria in failed endodontic treatment: A. E.faecalis 83.pt with prosthetic heart valve, already on abs for sinusitis, presented for Non-urgent endo? A. start immediately B. wait 10 days then give prophy C. give prophy now D. give before and after dose 84.Device use precise heat obturation of GP? A. Obtura III B. Thermafil 85.Minimum voxel size to be seen in endo imaging A. 0.2 B. 0.4 C. 0.6 D. 0.8 86.20 years old patient. Have avulsed tooth for 60 min. The management to return vascularity of the tooth: A. Scrap the surface of the root. B. Place the tooth in sodium sulfide of x %. C. Soaking in 2.4% sodium fluoride 87.During cleaning the canal a brown thing came out, this brown thing called parachloroaniline (PCA) which closed the dentinal tubules. What material produces this thing when mixed? A. Chlorhexidine and sodium hypochlorite 88.working time of AH plus sealer A. 4h 89.prognosis of VRF A. Hopeless 90.treatment of VRF A. Extraction 91.Radio-graphic assessment of avulsion case? A. CBCT with 2 PA B. Occlusal C. Panoramic 92.A very long case about camouflage orthodontic extraction pattern in Class II? A. Extraction of upper 4 B. Twin block C. Extraction of lower 4 D. Extraction of upper 5 93.Pinpoint exposure of the pulp in an abutment of FDP, management? A. RCT B. Direct pulp cap C. Indirect pulp cap D. Pulpotomy 94.Which of the following is the best storage media A. HBSS B. Water C. Saline 95.Ped opt has fall down in school and her tooth avulsed. Best media? (NO hanks in options) A. Milk B. saliva C. water 96.Carrier based obturation? A. Obtura B. reslion C. thrmofill 97.Most difficult tooth to anesthetized with irreversible pulpitis? A. maxillary molars B. mandibular molars 98.GP overfilled why? A. Failure to put apical stop 99.The worst root fracture at which part? A. Middle B. Apical C. Coronal 100.Splitting time for horizontal root fracture (middle third)? A. 2 weeks B. 4 weeks C. 3 months D. 1 week 101.Case scenario about pt. presented to the clinic with pain in his tooth, the tooth previously treated and hand instrument separation that in extending beyond the apex, what is the proper management? A. Extraction B. NSRCRT C. Apical surgery 102.Disadvantage of GP? A. Shrink after heat application B. hard to remove 103.Why the use of silver points is nowadays considered below the standard of care? A. cause corrosion that tattoos the mucosa B. cause corrosion that cause cytotoxicity (something like this) 104.Disadvantages of silver points A. The main reason for this change is because they corrode over time, and the apical seal may be lost. Also, silver points do not produce an acceptable three-dimensional seal of the canal system 105.Why do you remove the smear layer? A. Allow sealer to go through dentinal tubules • Removing the smear layer allows for more cleaning and disinfecting root canal walls and better adaptation of root canal filling materials. 106.case with stripping perforation in distal and mid root instrument fracture in mesial what’s the prognosis A. poor 107.Which of the following is the generally preferred time for repairing the defect if a cervical root perforation occurs during incomplete root canal treatment? A. Immediately after obturation B. After cleaning and shaping is complete but before obturation C. Immediately, and before proceeding with further preparation D. After an appropriate recall period, to assess the status of the tissue 108.very long case about broken instrument in the coronal third that can be retrieved, management? A. Retrieve & inform patient immediately 109.Which of the following endo sealer is resorbable A. ZOE B. Bioceramic C. Calcium hydroxide 110.Definition of Ledge: A. By definition, a ledge has been created when the working length can no longer be negotiated and the original patency of the canal is lost. 111.Case scenario (xray provided) of pt has endo in lower premolars and still complaining from pain. How many canals in lower 4? A. 2 27% B. 3 C. 1 D. 4 112.Definition of subluxation A. Subluxation is an injury to the tooth-supporting structures resulting in increased mobility but without displacement of the tooth. 113.GG size 3 what is diameter? A. 0.5 B. 0.7 C. 0.9 D. 0.11 114.Taper diameter of D0 30 file (6%) ? A. 0.3 115.A tooth that got pulp necrosis. X-ray shows NO caries nor restoration but there is a severe bone loss why? A. periodontal involvement 116.fracture of enamel and dentin without pulp exposure extending to subgingival cementum best describes? A. crown root fracture B. uncomplicated crown fracture C. complicated crown fracture 117.pedo patient had trauma 2 days ago of permanent central incisor with pic of enamel fracture and pin point pulp exposure best treatment? A. direct pulp capping B. partial pulpotomy with mta 118.Which tooth that has the more possibility of VRF? A. Maxillary 1st premolar B. Mandibular 1st premolar C. Maxillary 2ND premolar D. Mandibular 2ND premolar 119.AH root canal sealer is A. epoxy resin based. 120.Main disadvantage of MTA. A. long setting time 121.How can you differentiate between periodontal and periapical abscess? A. Vitality test 122.Central incisor access cavity? A. Oval 123.9 YRS boy presented with recently reimplanted 21 after avulsion. has history of trauma in all four incisors. All 4 teeth were non vital . a week later laterals responded to cold test which you will start to manage? A. 11 B. 22 C. 21 D. 12 124.Upper premolar what make it more to perforation and fracture: A. Concavity of the root B. Apical position of furcation C. Normal anatomy 125.Definition of apexification A. In these procedures, a calcific barrier is formed after long-term calcium hydroxide medicament or immediately with the use of an MTA or other tricalcium silicate as an apical plug 126.Management of extruded intercanal medicament? A. Follow up 127.what’s the most likely to give pulpal negative false response? A. Recent trauma B. Metallic restoration 128.curved root what’s the most common complication during instrumentation A. ledge 129.metallic sound in which trauma injury A. intrusion 130.Patient came to your clinic and reported that tooth 21 was avulsed and reimplanted 2 months ago, during radiographic examination there’s scoped out and apical resorption what’s the management A. Extraction B. Retro RCT with MTA 131.What’s causing severe pain to the pulp in irreversible pulpitis A. increased pressure B. Lymphocyte C. Decreased flow to the pulp 132.What is the pH of CAOH? A. calcium hydroxide is a white alkaline (pH 12.8 133.root fracture in 4 years in upper central no pain no mobility and they gave x ray what is the treatment? A. Observation B. Exo of coronal part C. Exo of whole tooth D. Request another x ray 134.Thermal pulp test affect: A. Blood supply B. Nerve supply 135.System-B obturation technique is: A. Cold GP. Condensation B. Warm GP. Condensation C. Continuous condensation 136.What is GG#1 file length means: A. 30mm B. 50mm C. 60mm D. 20mm 137.After trauma a tooth becomes yellowish in color, this is due to: A. Necrotic pulp B. Irreversible pulpitis C. Pulp is partially or completely obliterated D. Hemorrhage in the pulp 138.The fracture of root at which will be most difficult to manage: A. Apical third B. Coronal third C. Middle Third D. Vertical fracture 139.The exactas description of healing in endo treatment with radiolucency related to apex and fistula: A. disappear of radiolucency B. asymptomatic tooth C. decrease in radiolucency D. disappear of fistula 140.Lower right second molar treated by temporary Rct , 6 months ago Patient has pain, bone loss with normal periodontal depth: A. vertical root fracture B. leakage 141.Irreversible pulpitis is: A. lingering sever pain on cold B. pain on percussion C. short sharp pain on cold D. Pain on heat 142.Each of the following can occur as a result of successful root canal treatment, except one. Which one? A. apical seal of cementum B. regeneration of alveolar bone C. regeneration of PDL D. formation of reparative dentin 143.4th canal in upper first molar is found: A. Lingual to MBC B. Buccal to MBC C. Distal to MBC 144.Measuring pulp vitality: A. Heat B. Ozone O3 C. Carbon dioxide D. Laser Doppler 145.Doppler laser A. Blood supply vascularity of pulp 146.What is MTA: A. Mineral Trioxide Aggregate B. Metal Trioxide Aggregate C. Mineral Trioxide Acetate D. Mineral Tymol Aggregate 147.Best test to START endo diagnosis: A. cold test B. percussion test C. hot test D. EPT 148.Simplest pulp treatment: A. RCT B. pulpotomy C. pulpectomy D. pulp capping 149.palatal root of maxillary molar most commonly curves: A. palatally B. buccally C. distally D. mesially 150.Perforation in upper premolar due to: A. Large pulp chamber B. Complex internal anatomy C. Proximal root concavities D. Furcation located more cervically 151.Success of rotary endo: A. flaring Pre Coronal B. Use of EDTA C. irrigation 152.Extra canal if present in mandibular canine will be: A. Lingual B. Distal 153.Patient with esthetic concern having dark central because of trauma treatment? A. Crown B. Veneer C. endo D. Endo + internal bleaching 154.Ideal properties of RC filling material is the following EXCEPT: A. Radiolucent in radiograph B. Not irritate the surrounding tissue C. Easily removable when retreatment is necessary D. Stable and less dimensional change after insertion 155.You make ledge in the canal. You want to correct this. What is the most complication occur in this step: A. Creation false canal B. Apical zip C. Stripping D. Perforation 156.root end resection ,what is the conditioning: A. citric acid B. tetracycline C. EDTA 157.Gates Glidden drills #1, tip has a diameter same as which file size: A. 20 B. 40 C. 30 D. 50 158.Disinfectant of GP by: A. Chlorohexidine B. full concentration of NaOCl 159.What is easiest tooth for rct: A. weeping canal B. under filled C. overfilled 160.When thermo plasticized gp used A. Canal with irregularities B. Curved canals C. Where lateral condensation difficult D. Canals with open apex 161.pt. came to clinic had pain after RCT 2 days ago, radiographic it shows good filling, what's the management: A. nothing it's normal B. ibuprofen 200-400 for mild pain or 400- 600 for moderate pain C. Ibuprofen 400- 600 with antibiotic 162.What is the inter canal medicament between visits: A. sodium hypochlorite B. CaOH C. Chlorohexidine 163.In combined endo-perio problem: A. Start with endodontic B. Start with periodontic 164.Accessory canals in lower molars mostly found in: A. Apical third of root B. Mid root C. Near CEJ 165.Best way (least damaging) to remove GP from canal for post core preparation? A. mechanical drill B. chemical C. solvent 166.What is the first thing to use to remove Gutta percha from canal (for retreatment) A. a cotton pliers B. pesso reamer C. new h file 167.Protaper concept: A. Step down B. Step back C. Step crown down 168.Disadvantage of mcspadden tech: A. Can’t use in curved canal 169.C shaped canal in which tooth: A. Lower second molar 170.Characteristics feature of reversible pulpitis A. short pain with cold and sweet 171.What is Patency file: A. patency file it's a file can reach beyond the apex 172.Thermomechanical obturation: A. Mcspadden 173.Patient have dull pain and swelling and the PA shows apical radiolucency. Diagnosis: A. acute periodontal abscess B. chronic periodontal abscess with swelling C. Acute periodontitis D. chronic periodontitis 174.Endodontic instruments are classified according to A. Width of tip 175.Cause of pain in irreversible pulpitis A. Increase in intrapulpal pressure 176.Material of choice for weeping the canal: A. Calcium hydroxide 177.RCT contraindicated in: A. Vertical fracture of root B. Diabetic Pt C. Unrestored teeth D. Periodontally involved teeth 178.In filling canal, spreader should be A. 1-2mm short from working length 179.Which of the following failure may be treated non-surgically: A. Post filling that has removed B. Sever apical perforation. C. Very narrow canal with a periapical lesion and the apex cannot be reached. 180.Which of the following endodontic failure may be retreated only with surgery? A. Missed major canal B. Persistent interappointment pain C. Past and core D. Short canal filling 181.during instrumentation, sudden disappear of root canal due to: A. Bifurcation of main canal B. Apical perforation C. Calcification 182.Which irrigant is capable of killing E.faecalis: A. MTA B. NaOCl C. MTAD D. H2O2 183.Ultrasonic in endo has advantages than provisional method: A. faster B. debridement C. best access cavity 184.Patient with pain on 15 and this tooth undergo with RCT but he still has pain on percussion What u suspect? A. primary apical periodontitis B. secondary apical periodontitis C. over instrumentation D. over medicate 185.Patient comes with sinus, you make tracing and take radiograph. The GP appears in lateral surface of the root: A. horizontal fracture B. periodontal abscess C. periodontitis D. Lateral accessory canal 186.Best disinfectant of Gutta percha chair side: A. 70% alcohol B. 90% alcohol C. 80% alcohol D. 100% alcohol 187.Case about perforation while finding canals, what to do: A. Put MTA then continue searching the canals B. Find the canals then put MTA C. Complete obturation then treat the perforation 188.Patient came with trauma of tooth with pulp exposure, while clinical cold test there was a sharp pain which disappear shortly, non-lingering pain to cold with small pulp exposure, the tooth is tenderness on percussion “ or sensitive to touch”. The diagnosis is: A. Asymptomatic irreversible pulpitis with symptomatic apical periodontitis B. Asymptomatic reversible pulpitis with symptomatic apical periodontitis C. Symptomatic irreversible pulpitis with symptomatic apical periodontitis D. Symptomatic reversible pulpitis with symptomatic apical periodontitis 189.Tooth no 26 had RCT since two years upon x-ray you found a radiolucency with bone resorption along one of the roots: A. CaOH 2 B. resection of the whole root C. redo RCT D. periodontal curettage 190.Yellowish discoloration of tooth after rct due to: A. Hemorrhage from pulp B. Incomplete debridement of pulp tissue C. Leaving Gutta percha in pulp chamber D. Hemorrhage from the canal+ leaving Gutta percha 191.Most tooth come with c curved root: A. Max 1st molar B. Max 2nd molar C. Mand 1st molar D. Mand 2nd molar 192.If doing rct for mandibular incisor and you missed the canal, what canal would u miss? A. Lingual B. Buccal C. Mesial D. Distal 193.Access cavity for mandibular second molar: A. Triangle with the base located mesial B. Triangle with the base located buccal C. Oval with base located mesial D. Oval with base located buccal 194.What is the cross section of peso reamers: A. Triangle B. Square C. Circular D. Rectangular 195.Wall of access should be for RCT: A. Divergent B. Parallel C. Convergent 196.Length of files: A. 21 .25.31 197.Pulp polyp associated with: A. reversible p B. irreversible pulpitis C. necrotic p D. non vital 198.Simplify type canal enlargement by NiTi in or NiTi rotary file is: A. universal Protaper B. reciprocal C. revers D. light speed rotary 199.The least effective irrigant against E. faecalis: A. Sodium hypochlorite\ NaOCl B. Tetracycline C. Iodine D. Chlorohexidine 200.Filling in RCT must finish: A. Exactly up the radiographic apex B. Few millimeters before apex C. At the half distance between apex and the pulp chamber D. Filling the pulp chamber 201.Best root canal material primary central incisor: A. Iodoform B. Gutta percha C. Formocresol 202.when you remove the carious dentine, sudden appearance of the canal: A. dark B. pink C. brown D. light 203.During endodontic treatment the file broke ,when we can leave it and have best prognosis: A. Long part away from working length at early stage of mechanical preparation B. Short part near the working length at early stage C. Long part near the working length at late stage D. Short part away from working length at late stage 204.Planning to restore an endo treated tooth, all true except: A. you can immediately prepare a well condensed Gp B. you can remove GP effectively using hand or rotary instruments C. you need to leave 4-5mm of well condensed GP apically D. you can cut silver point after it was sealed in the canal 205.Simple file type of canal enlargement by NiTi: A. Universal taper B. reciprocal C. reverse s D. light speed rotary 206.Tracing of GP used for: A. Origin of periapical pathosis B. Acute periapical periodontitis C. Periodontal abscess 207.Which endo file system do more reciprocation motion than continuous rotation? A. profile B. Bio Race C. Wave one 208.Access cavity preparation of lower mandibular molar: A. divergent towards distal B. Convergent towards distal Resto 1.Sequence of Vita classical shade: A. HUE - CHROMA - VALUE. B. HUE - VALUE- CHROMA. 2.1st number of instrument A. Width of blade 3.4Unit instrument formula • First unit: width of blade in tenths of a millimeter. • Second unit: angle the cutting-edge forms with the axis of the handle in centigrade • Third unit: length if blade in millimeter • Fourth unit: Angle the blade forms with the axis of the handle in centigrade. 4.3Unit instrument formula: • First unit: width of blade in tenths of a millimeter. • Second unit: length of blade in millimeter. • Third unit: angle the blade forms with the axis of the handle in centigrade 5.Improper handling of hot hydrocolloid impression material : A. Thermal injury 6.After casting polyvinyl siloxane bubbles appear in cast due to: A. Hydrogen gas 7.Dentist just did a pvs impression and will send it to the lab what instruction should he give? A. Don’t pour using latex gloves B. Don’t pour immediately to allow hydrogen gas to be released 8.PVS impression poured immediately after removal and a lot of voids in the cast? A. Hydrogen gas. 9.Polysulfide impression material: A. Should be poured within 1 hour B. Can be poured after 24 hours C. Can be poured 6-8 hours 10.Disinfection of alginate impression material: A. Sodium hypochlorite 11.Holes punched in the rubber dam too close together results in: A. Rubber dam stretched result in leakage. 12.The main disadvantage of using tunnel peroration? A. gingival recession B. root caries C. sensitivity 13.Projection of enamel extend to CEJ contribute to: A. Caries B. Sensitivity C. Periodontal disease. 14.Major disadvantage of zinc oxide eugenol cement: A. Affect adhesion of resin 15.Cement to be mixed slowly to achieve good consistency : A. GIC B. resin C. zinc polycarboxylate D. zinc phosphate. • Zinc phosphate cement is mixed slowly and over a large area of a chilled glass slab to dissipate the heat of the setting reaction 16.GIC luting is type : A. 1 17.Temporary cementation: A. ZOE. 18.DIAGNODENT major disadvantage: A. high positive predictive value B. high positive sensitivity C. high negative predictive value D. high negative sensitivity value 19.dentin remaining thickness <0.5 mm under composite place: A. calcium hydroxide. 20.Complication after tunnel A. Hypersensitivity 21.What type of dentin formed after placement of restoration? A. Primary B. secondar C. tertiary D. reparative 22.dentine type form after pulp capping A. reparative 23.Importance of copper in amalgam ? A. Decrease expansion B. Decrease corrosion C. Decrease flows Dental amalgam • Amalgam = an alloy of mercury, silver [ highest percentage], tin, copper, zinc. • Both silver and copper are important because they decrease flow and creep of amalgam restorations. • Zinc =scavenger for oxides - reduces corrosion, but causes delayed expansion of amalgam when contaminated with water or saliva 24.Component of amalgam? A. Mercury, silver, tin, copper, zinc 25.Why we remove irreversible hydrocolloid by snaping? A. To prevent impression tear 26.What is the method of removal of alginate impression from the patient mouth in order to maintain the recorded tissue surface from wear and tear? A. Remove gently B. Remove quickly C. Remove with snap D. Remove forcefully 27.What is the component of resin of composite? A. acrylic B. Epoxy C. Polycarbonate 28.Alginate • increase Setting time ( more working ) > Cold water + more water • Decrease Setting time (less working ) > Hot water + less water 29.Increase setting time by? A. Cold water 30. Decrease setting time by? A. hot water, slurry water 31.How to manage arrested caries? A. Filling by gic B. No ttt • Arrested caries do not require treatment, treatment is only to improve aesthetics 32.Anticariogenic sugar substitute is ? A. Xylitol B. Mannitol 33.xylitol gum it? A. reduce caries B. help the joint C. Increase saliva D. cause hydrolysis • Main function is increase flow then reduce caries 34.How can xylitol-containing chewing gums reduce caries in children if used routinely? A. Altering the formation of enamel crystal B. Enhancing the process of reminalization C. Decreasing sreptococcus mutans levels in saliva and plaque D. Increasing the resistance of tooth structure to demineralization 35.Which material has the longest sitting time? A. Polysulfide B. Polyether C. Addition silicon D. Irreversible hydrocolloid 36.cast has positive bubbles on it. What is the cause? A. Bubble formed during pouring B. Bubble formed during mixing C. Bubble formed during impression making D. All of the above 37.Cast with positive bubble is due to air entrapment at which stage: A. Impression 38.Why rampant caries does not usually affect lower anteriors? A. Small teeth B. The tongue protects the teeth C. Space between the teeth 39.Palato-gingival groove? A. Upper central B. Upper lateral 40.Rubber dam sheet wrinkles after placed on teeth? A. holes are small B. holes are too far from each other C. holes are too close • holes are too far from each other: wrinkles • holes are too close: leakage • holes too low :cover pt's eyes • holes too high : will not cover upper teeth 41.To detect recurrent caries? A. Bite wing B. Periapical C. Transillumination 42.patient made composite filling in his central the next day it looks lighter what is the problem? A. Color matching under rubber dam B. From blood in the composite (affect the retention not the color) 43.what is the best material for root filling ? A. GIC 44.the time that we apply the varnish in ? A. Instruct the patient to allow varnish to remain in contact with the tooth surfaces for a minimum of 4 hours. For maximum fluoride uptake, the varnish can remain on the teeth overnight and can be brushed off in the morning. 45.Reduction in amalgam restoration should be: A. 1-1.5 mm. B. 1.5-2 mm. C. 2-3 mm. D. 3-5 mm 46.Picture of 2 incisors, patient complain that they don’t look similar, you see a slight difference in the incisal edges, what do you do? A. Reshape and polishing B. Reassure patient 47. Question about C-fibers and A-fibers… • Dentinal pain/ A-delta fibers: Sharp pain, cold, coronally, myelinated • Pulp pain/ C-fibers: dull throbbing, heat, centrally, unmyelinated 48.Old patient with cervical lesion and had attrition and gingival recession, this lesion is? A. Root caries B. Abfraction C. Abrasion 49.Which bleaching material used for non-vital teeth? A. Hydrogen peroxide B. Sodium perborate 50. Effect of bleaching on other restoration? A. Encourage mercury excess from amalgam B. Dissolve porcelain 51.Patient with inlay from 3 years came with severe pain and loose inlay and there is no radiolucency changes, what to do first? A. RCT B. Extract tooth C. Rinse inlay with water and the cement it D. Ask patient to bite on “**wooden thing?!!!” ((tooth slooth)) to diagnose if the tooth is cracked 52.Carbamide to hydrogen ratio in bleaching A. 3:1 53.Complication of non-vital bleaching A. External cervical resorption 54.Which bleaching material lead to cervical resorption? A. Hydrogen peroxide B. Sodium perborate 55.What is the most common sensitivity stimuli seen after amalgam and considered as normal? A. Cold B. Heat C. Sweet D. Biting 56.Pain after 1 month of amalgam, you placed amalgam pins in deep dentin, what is the cause of the pain? A. Undetected pulp exposure B. Amalgam expansion C. Contamination before condensation D. Contamination after condensation 57.Long scenario recent amalgam with cold pain reason A. Cold contraction B. Amalgam expansion C. Pulpitis D. post operative sensitivity 58.The copal resin varnish that is used with amalgam restorations provides: A. short term sealing of the restoration margins B. lifetime scaling of restoration margins C. electrical insulation of the dentin-pulp organ D. mechanical insulation of the dentin-pulp organ 59.the role of varnish under amalgam A. Prevent discoloration of the dentine 60.Long scenario about fracture cusp tt A. Extraction B. Rct and crown C. Restoration follow up D. Remove broken and composite restoration 61.long scenario in end 12-fluted where uses? A. Micro abrasion B. Macro abrasion 62.most component in enamel A. Inorganic 63.long case about composite restoration with 2 mm dentin above pulp what will happen A. Dentin sensitivity B. Post operative sensitivity 64.long cases About when the coolant is stop while you working what happen A. Pulp trauma 65.spacer for PVS must at least A. 2-3 B. 5 C. 6 66.impression making thermal injury what it is A. Agar agar /reversible hydrocolloid 67.case about pt. with diabetes and hypertension have allergy from sulfur what the impression must avoided A. Polysulfide 68.dentist make impression and don’t have time to pouring which material A. Pvs 69.the length changes 1 degree when heat increase 1 c A. Thermal coefficient expansion 70.2 cavities one small one large, which to prepare first which to restore first? A. Start prep with large cavity and start Restoration with small cavity 71.what increase retention of Fissure sealant? A. enameloplsty B. air abrasion C. etching 72.What material with acid-base reaction? A. GIC B. RMGIC C. composite 73.What true about pvs? A. inhibited by latex 74.Pt with deep caries during removal of caries pinhole exposure of pulp, management? A. rct B. direct pulp capping C. pulpotomy 75.internal resorption and dentine (which type of dentine is responsible for Internal resorption) A. Predentin B. Primary dentine C. Secondary D. Tertiary 76.compound better than PVS A. Can be poured multiple times B. No need for instruments C. Can't tear 77.saline coupling agent A. Connects the bis-gamma components of composite 78.Loss of bond between two materials A. Adhesive B. cohesive 79.What is the main cause for amalgam fracture? A. preparation design 80.Composition of Amalgam: • Silver: 63-70% • Tin: 26-28% • Copper: 2-5% • Zinc: 0-2% 81.Most commonly used amalgam pin: A. Self-threading 82.Saucer-like: ”Sharp wedge-shaped notch in the gingival portion of the facial aspects of teeth” A. Abrasion 83.Sharp wedge shape defect: A. Abfraction 84.You did class 2 Amalgam, patient came after days complaining of food impaction what to do? A. Redo resto B. Give patient floss C. Adjust contour 85.What do we call the phenomenon of seeing the material in multiple colors on different lights? A. Metamerism 86.Alginate impression disinfected with NaOcl then dried before pouring, what will happen to the cast : A. Porosity B. Smaller C. Larger 87.Microfilled veneer was chipped so it decided to be replaced with another filler? A. Macro B. Hyperd C. Nono D. Flowable 88.When is retraction cord indicated? A. Class V amalgam preparation B. Control gingival bleeding 89.Patient with inflamed gingiva what is the difficulty when taking a final impression with PVS? A. Bleeding B. Gingival overgrowth C. No space for cord placement 90.which instrument do we use with pushing motion? A. Chisel B. Hue (pull motion) C. Curette (pull motion ) 91.how many embrasures between 2 teeth A. 4 92.Number of flutes for finishing burs? A. 9-11 B. >12 93.Best restoration for root caries? A. RMGI B. Amalgam C. Composite D. Ketac 94.Why fissure sealant is opaque not translucent? A. Increase retention B. better visibility C. reduce marginal leakage 95.Patient came with pinpoint open margin what will be the consequence? A. Caries 96.After complete etching the canal the cavity contaminated with saliva what will you do? A. Air the cavity then proceed B. Swab cavity with cotton pallet C. Wash the cavity with water then air the proceed D. Wash the cavity with water then re do etching the air then proceed 97.Impression porous why? A. too much pressure before set. B. monomer polymer insufficient. 98.Rubber dam clamp, what may cause if not placed properly? A. recession B. loss of keratinized epithelium C. Gingival enlargement 99.Anterior teeth clamp ? A. 212 100.Best time for polishing amalgam in (hours): A. 1 B. 8 C. 24 D. 48 101.Adding pin in amalgam gives more? A. Stability B. Retention 102.Pt. came with discolored tooth #11, tooth is non-vital, treatment is? A. Vital bleaching B. Macro abrasion C. Micro abrasion D. Non-vital bleaching 103.Type of stone used to pour the cast for RPD design? A. II B. III C. IV 104.Type of bonding between the composite and enamel? A. Micro-mechanical B. Physical C. Mechanical 105.In operative procedure forceful wedge placement will cause? A. Food impaction B. Root fracture C. Gingival damage 106.Has the most polymerization shrinkage? A. Class I B. Class II 107.Weakest bonding area for adhesive restorations A. Enamel B. DEJ C. Deep dentin D. Superficial 108.Patient comes with broken cusp, what is the conservative treatment that also gives longevity? A. Composite B. Inlay C. Onlay D. Full crown 109.What’s the purpose of acid etch before resin restoration? A. Improves retention B. Prevents micro leakage 110.Under GIC to increase the retention? A. 9 % percent Hydrofluoric acid B. 10 % poly acrylic C. 35% phosphoric acid D. 37% poly acrylic 111.During alginate impression the impression got stuck on the teeth what’s the reason? A. too dry 112.What is the liquid component in GIC? A. polyacrylic B. polymethacrylic 113.The life span of tungsten carbide bur can be extended by? A. Bringing the bur to full speed before contacting the tooth B. Contacting the tooth structure before rotating C. Moving the bur at low speed before contacting the tooth 114.An alginate impression was taken on a patient. Since the dentist was busy and did not have time to pour it, he placed the impression in a bowel of water so it will not dry until he has time to pour. Which of the following may happen by leaving the impression in water? A. Gelation B. Syneresis C. Hysteresis D. Imbibition 115.A patient came with fractured class IV restoration. What is the best material to use? A. Hybrid B. Nano C. Micro 116.Long term GIC cement disadvantage? A. Marginal leakage B. Low retention 117.Smoker patient what type of stain? A. Extrinsic B. intrinsic 118.Compomer is known as: A. Resin modified glass ionomer B. Poly acidic modified composite resin C. Glass ionomer cement D. A resin composite 119.Which of the following instruments has parallel blade with long axis of the shaft? A. Hatchet B. chisel 120.What is the best instrument used for removing unsupported enamel at the gingival wall of class ii: A. Chisel B. Hatchet C. Gingival margin trimmer 121.zinc phosphate effect on pulp: A. necrosis 122.cement irritating pulp A. Zinc phosphate 123.What calcium hydroxide do in vital pulp therapy? A. Encourage dentine bridge formation B. Irritate the pulp 124.What is the advantage calcium hydroxide over other material? A. Sedative to the pulp B. Induce secondary dentin C. Protect from thermal irritant D. Protect from chemical irritant 125.Thickness of incremental composite? A. 1 B. 2 C. 4 126.Best material for final impression A. Reversible hydrocolloid B. Irreversible hydrocolloid C. Elastomers 127.Putty wash technique A. Monophase elastomeric impression 128.Pt cc lost restoration of composite class 2, what to do to increase retention? A. Dovetail prep B. Convergence axial wall C. Layering technique of composite 129.Instrument to cut enamel: A. chisel 130.What happens if amalgam not polished? A. Corrosion and tarnish 131.Why alginate impression cause tissue displacement? A. High viscosity 132.Patient with bruxism, which restoration with least wear resistance? A. Amalgam B. Composite C. Ceramic crown D. PFM crown 133.craze line treatment A. nothing 134.bluish black discoloration of the gingiva A. Amalgam stain B. Lead stain C. Metal crown something 135.high setting time A. Poly ether B. Poly sulfide C. Addition silicone D. Condensation silicone 136.More fillers in which composite A. hypred B. Nanofilled C. Microfilled D. Macrofilled 137.Which impression material can record fine details even on wet surface: A. polysulfide B. poly ether*** C. condensation silicone D. addition silicone 138.Best material used for Onlay impression: A. polyvinyl silicone B. addition silicone C. poly sulfide D. poly ether 139.Irreversible hydrocolloid .we pouring more than15min.then become soft and chalky This is due to: A. immersion in disinfectant B. Dehydration 140.Flasking fixed denture: A. plaster B. refractory material 141.Setting expansion of the casting investment material : A. 0-0,1% B. 0,1-0,5% C. 0,5 -1% D. 1,1-1,6% 142.instrument used for wax grooving for a die in FPD A. PKT no. 3 143.instrument which we use to make groove in the wax is: A. Spoon excavator 144.Impression most likely to extend over tray during impression: A. Alginate B. Brown C. Compound D. Addition silicon 145.New dentist leave alginate impression for 45 mints in dry Environment: A. Syneresis B. imbibition C. dimensional expansion Perio 1.What is the mechanism of action of chlorhexidine? A. It inhibits prostaglandin production. B. It inhibits leukotriene formation. C. It disrupts the bacterial cell membrane . D. It disrupts nucleic acid synthesis. 2.Why does chlorhexidine possess a wide spectrum of antimicrobial properties? A. Because of its cytotoxicity B. Because of its substantivity C. Because of its high concentration D. Because of its tissue-dissolving capacity 3.Raise suspicion of systemic problem: A. Bad odor with coated tongue B. Bleeding gingival without presence of irritant factor. 4.Periodontal probe: A. Remove excess cement B. check for bleeding on probing. 5. The instrument in the picture is called? A. Michigan probe with Williams marking 6.Which of the following periodontal probes is calibrated in 3 - mm sections? A. Unc - 15 probe B. Marquis probe C. Michigan o probe D. Goldman – fax 7.The instrument in the picture is called? A. sickle scaler 8.Gingival thickness measured by: A. Periodontal probe 9.How to measure gingival thickness: A. Caliper. 10.Thin gingival phenotype predispose to: A. Fenestration & dehiscence 11.Overhanging margin should be remove : A. Prevent growth of gram negative. B. Prevent calculus formation 12.Furcation grade I treatment A. SRP 13.Success of regenerative periodontal surgery depend on: A. Type of membrane. B. Morphology of defect. 14.Gummy smile and patient have van Willebrand disease A. Conventional gingivectomy B. Laser gingivectomy 15.Patient came to dentist examination revealed biologic width violation how dentist will confirm: A. bone sounding. • The biologic width can be identified by probing under local anesthesia to the bone level (referred to as “sounding to bone”) and subtracting the sulcus depth from the resulting measurement. If this distance is less than 2 mm at one or more locations, a diagnosis of biologic width violation can be confirmed. 16.Periodontal ligament act as shock absorption this function: A. Physical. B. Formative C. Nutritive D. Sensory 17.Best management of single rooted tooth with vertical root fracture: A. Extraction and implant replacement 18.A 55-year-old woman presented to the clinic complaining of pain after a scaling and root planing visit done 2 days ago. Clinical examination showed generalized ulcers on the gingival margin, bleeding on probing, excellent oral hygiene. Which of the following is the most likely treatment of choice? A. Reassure the patient B. Apply topical antibiotics at infected sites C. Do another round of scaling and root planing D. Apply topical steroids to reduce the inflammation 19.Pocket in vertical root fracture: A. Deep isolated narrow. 20.diabetic pt came with multiple swelling HA1C >9: A. periodontal abscess. 21.Periodontal abscess: A. uncomplete calculus removal. 22.Difficult in periodontal instrumentation: A. upper 4 23.Gracey of mesial: A. 15,16. 24.Hiv patient came complaining of pain and malodor. There necrosis on the gingiva with no attachment loss A. Necrotizing gingivitis B. Necrotizing periodontitis 25.patient came with pain and ulcer in gingival and malodor,pt. stressed : A. Necrotizing ulcerative gingivitis. 26.Which area not be affected by plaque induced gingivitis? A. Edentulous ridge B. Posterior teeth C. anterior teeth 27.Primary goal of osseous surgery? A. Plaque removal B. Pocket eradication or elimination C. Recession ttt 28.Pt with periodontitis due to large caries, first start with ? A. Rct B. Scaling 29.Sir Lace research rapid progression of Periodontal disease? A. 8% B. 70% C. 81% • Rapid :8% • Moderate :81% • No progression : 11% 30.what is the name of this defect? A. Stillman cleft 31.patient came having exam and from the stress he is smoking more he feels pain and a metallic taste are present the pocket 2-3 no bone loss calculus + membranes tissue something like that ,after putting the pt on stop-smoking program what is your next step ? Anug A. Clean and scaling B. Give antibiotics 32.what is the size of the biological width ? A. 2mm 33.the Supra-alveolar attachment (biological with ) is ? A. 1mm gingival attachment, 2mm connective tissue B. 2mm gingival attachment ,1mm connective tissue C. 1mm gingival attachment ,1mm connective tissue D. 2mm gingival attachment,2mm connective tissue 34.Least attached gingiva where? A. Mandibular premolar area 35.Deepest area for Gracey curette for scaling and root planning A. 1.5 mm B. 2.5 mm C. 3.4 mm D. 4.3 mm 36.Hemi section is direction of A. Root with crown B. Root only C. Crown only 37.Bacteria found in gingivitis stage III (established lesion)? A. PMN B. Plasma cells 38.In healthy gingiva what will you find? A. No inflammatory cells B. Plasma cells 39.Definition of pseudo pocket? A. Coronal migration B. Apical Migration o Pseudo pocket: gingival enlargement without destruction of junctional epithelium 40.Definition of fremitus? A. Vibration that is felt when palpating tooth when patient occlude o Grading of fremitus • G1: Mild vibration • G2: palpable vibration but not visible • G3: visible movements 41.Recession 1mm in lower #4 and 2mm in lower#5 with no evidence of any periodontal disease, type of recession? A. Class 1 B. Class 2 C. Class 3 D. Class 4 42.What stage the NUG exposed the alveolar bone? A. Stage 3 B. Stage 4 C. Stage 5 D. Stage 6 o NUG Stages • STAGE 1 → Necrosis of tip of Inter dental papilla • STAGE 2→ Necrosis of entire papilla • STAGE 3 →Necrosis extending to the gingival margin • STAGE 4 →Necrosis extending to Attached gingiva • STAGE 5 → Necrosis into Buccal/Labial Mucosa • STAGE 6 →Necrosis exposing Alveolar Bone • STAGE 7→ Necrosis perforating skin of cheek 43.Pt had srp 2 days ago and came with pain and swelling? A. subgingival calculus not removed. 44.Predominant cells in initial stage of gingivitis? A. B. cells B. Plasma cells C. Neutrophils o Stages of gingivitis: • Stage 1: initial lesion 2-4 days, neutrophils • Stage 2: Early lesion 4-7 days, T Lymphocytes, bleeding • Stage 3: Established lesion 14-21 days, B lymphocytes, plasma cells, change color • Stage 4: advanced lesion, Periodontitis 45.long scenario of after scaling and root planning pus and swelling A. Periodontal cyst B. Periodontal abscess C. Gingivitis 46.long scenario of 13 girl with bleeding gingiva and enlargement with good oral hygiene A. Leukemia B. Puppetry C. Periodontitis D. Drug 47.Instrument with triangular tip and 2 cutting A. Sickle B. File C. Hoe 48.instrument with two connect point sickle A. Hoe B. Curette 49.What will happen if CHX was prescribed 4 months? A. Altered taste 50.bone loss in secondary TFO A. 30-50 51.case about class2 furcation and mobility 2? A. Extraction B. Guide tissue regeneration C. Ct graft 52.pic for semilunar flap 53.case about 12 years girl with good oral hygiene but the two central teeth are separated from each other ,what is the reason? A. Periodontal cyst B. Gingivitis C. NUG D. NUP 54.most difficult in cleaning? A. Upper4 B. Lower4 C. Upper6 D. Lower 6 55.case of hypertension pt. with nifedipine there is pocket 5 but is not true A. Refer to periodontist B. Change drug C. Surgery D. Refer to physician dr to change drug 56.gingival enlargement in interdental papilla and margin A. grade II 57.microorganisms make periodontitis A. Fungal B. Virus C. Bacteria 58.long case with pic for pt have redness in all gingiva and bleeding • A. Plasma cell gingivitis 59.Uncontrol diabetes with hba1c more than 8 and have general gingivitis and pocket 6mm and deposit calculus A. Refer to physician B. Give doxycycline and scaling and root planning C. Mouth wash and oral instruction 60.One case for new periodontal stage and grade ( cal more than 5mm , 6 teeth missing, bone loss more than 50%) A. Stage IV Grade C 61.case about pt. have periodontitis and attachment loss 5-7, mobility in first molar and incisor and bone loss 50% A. Localized stage2 grade b B. Localized stage 2 grade b C. Incisor molar stage 1 grade c D. Incisor molar stage 3 grade c 62.Case with limited opening of mouth what gracey curette modification? A. Shank elongated 3mm 63.Srp effect on diabetic pt HBA1c? A. Decreasing HBA1c 64.Patient with pacemaker and gingival enlargement, what to avoid? A. electrosurgery B. laser gingivectomy C. conventional gingivectomy 65.Universal curette cutting edge A. double sided cutting edge 66.Intraligamentary injection effect on periodontal? A. Cessation of circulation of pulp for 30mins 67.Healthy gingival sulcus other name? A. periodontal pocket B. gingival col C. Gingival crevice 68.pic of tunnel preparation 69.pic for one wall bone defect 70.pic of double papillae flap 71.Healthy sulcus A. 3mm 72.A periodontist is performing resective osseous surgery for his patient. During the procedure, interproximal bone level varied horizontally, with areas of one-walled interproximal defects(hemiseptal defects) being observed. Consequently, the periodontist had to correct these areas during the procedure. Which of the following is best describes the correction step? A. Vertical grooving B. Radicular blending C. Gradualizing marginal bone D. Flattening of interproximal bone 73.dentist apply disclosing agents, to detect: the is the picture • A. plaque 74.Pt have high frenum attachment, von willebrand disease and u need you do frenectomy: A. Laser B. Conventional 75.Florida probe definition: A. is an automated way for measurement of sulcus or pocket. 76.Electrical periodontal probe: A. florida probe 77.Charter’s technique: A. for ortho • Bass technique (all pt). • Rolling technique (pedo). • Stilman technique (gingival rec). • Chartet technique (surgery,ortho,fixed). 78.Hemisection definitin: A. Surgical separation of multirooted tooth, usually a mandibular molar, through the furcation in such a way that a root and the associated portion of the crown may be removed. 79.smokers have: A. Decreased gingivitis decreased BOP B. Increased gingivits decreased BOP C. Increased gingivitis increased BoP 80.desquamative gingivitis treatment: A. Topical steroids B. Systemic steroids 81.pocket depth most likely to benefit from SRP? A. 3 B. 4 C. 5 D. 6 82.why are diabetics susceptible to perio? A. impaired neutrophil chemotaxis 83.What is the association between perio and diabetes? A. impaired leukocyte function 84.Pt ate fish yesterday, and he came to complain of gingival bleeding, no bone changes in the radiographs, and no deep pockets? A. Gingival abscess B. Coronal abscess C. Periodontal abscess D. Periapical abscess 85.The distance between the gingival margin and crystal bone is 3 mm, so what is the depth of the gingival sulcus? A. 1 86.Patient with a healthy gingiva got anterior crowns, he came with lower teeth mobility, what type of occlusal trauma is this? A. Primary occlusal trauma B. Secondary occlusal trauma C. Tertiary occlusal trauma 87.Pt came with teeth mobility, on examination there is severe periodontal involvement, cal range 34mm, what is the diagnosis ? A. Stage I grade a B. Stage II grade a C. Stage III grade a D. Stage Iv grade a 88.The distance between the most apical calculus and the alveolar crest is A. 1.97mm. 89.Space between bone and plaque? A. 0.5-2.7 90.Uncontrolled diabetes and cal of 3-5mm with multiple furcation grade 1 prognosis? A. Poor B. Fair C. Questionable 91.tooth # had 11 Root coverage procedure , where you would do vertical releasing incision ? A. Mesial 21 B. Distal 21 C. Mesial 13 D. Distal 13 92.patient with horizontal bone loss and CAL 1-2mm what is the diagnosis? A. Stage i grade a B. stage ii grade a 93.subgingival curette for distal of molars? A. 13-14 curette 94.how to differentiate between ANUG, ANUP? A. extent of disease B. bone and clinical attachment loss 95.Nabers probe is used for A. furcation involvement. 96.Probing depth 2, gingival overgrowth 2, Cal? A. 0 97.Best method to detect vertical bone loss ? A. Vertical bitewing 98.cells that modulate pdl? A. Fibroblasts 99.Posterior maxilla type of bone? A. D4 100.What is the difference between smoker and non-smoker in terms of bone height? A. More vertical bone loss 101.AGE’s with which disease? A. diabetes 102.lysozymes function. A. Antibacterial by breaking of bacterial cell walls. 103.Pic of molar with furcation, the probe is through-through + visible in the radiograph, which stage according to Glickman? A. I B. II C. III D. IV 104.What is the sickle scaler used for? A. Remove subgingival calculus B. Remove supragingival calculus 105.Pic of gingival enlargement of the mandibular arch, bleeding, bad breath, bone loss, and patient is taking immunosuppressant drug, what is the important factor to control first? A. OH B. Gingival enlargement C. Bone loss 106.Pt. presented to the dental clinic for regular checkup, upon examination, the dentist noticed that # 35 has irregular gingival epithelium, enamel was extending to the furcation, in this case what will be the complication related to this defect? A. Caries B. Sensitivity C. Periodontal problems 107.A 42-year-old man presents to the Dental Clinic with periodontitis. Clinical examination reveals a 3-wall infrabony defect that needs 10 bones grafting mesial to mandibular second premolar. Sufficient interdental space between first and second premolars was observed. Which of the following is the periodontal flap of choice in this case? A. Partial thickness flap B. Apically displaced flap C. Papilla preservation flap D. Laterally positioned flap 108.A 45-year-old man presented to the Dental Clinical complaining of generalized gingival pain. Clinical examination revealed generalized upper and lower ulcers on the gingiva, supra and subgingival plaque deposits. Body temperature 39°C. Which of the following is the most likely treatment of choice? A. Scaling and root planing then see the patient after one week B. Scaling and root planing and prescribing chlorohexidine mouth wash C. Prescribing chlorohexidine mouth wash for two weeks then see the patient after 2 weeks D. Scaling and root planing and prescribing a combination of amoxicillin +metronidazole antibodies 109.Patient with NUG and severe pain what’s your management A. Srp B. Srp with one dose clindamycin C. Srp with amoxicillin and metronidazole 110.Best defect that respond to GTR? A. 3 wall defect 111. Cell Responsible for bone resorption & apposition? A. Osteoblast B. Fibroblast C. Cementoclast • Osteoclasts are responsible for aged bone resorption and osteoblasts are responsible for new bone formation 112.periodontal changes in eldery (aging)? A. decreased gingival thickness B. increased gingival thickness C. decreased width of attached gingival D. increased width of attached gingival 113.Pt who has DM, and hypertensi