MCQs 95 Implantology 6DD Dr.Tep Navy.docx

ចូរគូសចំលើយដែលត្រឹមត្រូវ The primary goal to protect and maintain "tissue-integration\"are : {#the-primary-goal-to-protect-and-maintain-tissue-integrationare.QMultiChoice} =================================================================== - Regularly scaling with hand scalers or ultrasonic scal...

ចូរគូសចំលើយដែលត្រឹមត្រូវ The primary goal to protect and maintain "tissue-integration\"are : {#the-primary-goal-to-protect-and-maintain-tissue-integrationare.QMultiChoice} =================================================================== - Regularly scaling with hand scalers or ultrasonic scalers - Periodic recalls reinforcing regimen - Probing measurements closely approximate actual bone levels immediately after abutment connection - Good oral hygiene - Periodic recalls reinforcing regimen and Good oral hygiene The primary goal of implant maintenance : {#the-primary-goal-of-implant-maintenance.QMultiChoice} ========================================= - No Peri implantitis - Maintain and protect tissues integration - Marginal bone loss less then 0.1mm - Absence of mobility - Maintain and protect tissues integration and Absence of mobility Which one is not Clinical Parameters of Evaluation: {#which-one-is-not-clinical-parameters-of-evaluation.QMultiChoice} =================================================== - Occlusion - Proper torque on screw joints - Bleeding - Radiographic assessment - Implant system The Clinical signs of implantitis: {#the-clinical-signs-of-implantitis.QMultiChoice} ================================== - Pathogenic microorganisms is similar clinical presentation of Abscess - Poor oral hygiene; bacteria - Similar clinical presentation of periodontitis - Mobility and peri-implant radiolucency - Bone overheating, lack of initial stability Criteria for the successful implant : {#criteria-for-the-successful-implant.QMultiChoice} ===================================== - Radiographic radiolucency - no peri-implantitis - Marginal bone loss 1.0-1.5mm first year; then \> 1mm annually thereafter - Progressive soft tissue changes or bone loss \> 1.0-1.5mm Success rate of implant varies with: {#success-rate-of-implant-varies-with.QMultiChoice} ==================================== - Bone quality - Loading dynamics - Location of implant placement - Case selection - All are correct Which one is not recommended for maintenance of implant?: {#which-one-is-not-recommended-for-maintenance-of-implant.QMultiChoice} ========================================================= - Home-care regimen - Periodic recalls reinforcing regimen - Regularly scaling with ultrasonic scaler - Lifetime maintenance commitment Which one is not recommended for Oral hygiene aids : {#which-one-is-not-recommended-for-oral-hygiene-aids.QMultiChoice} ==================================================== - Regularly scaling with hand scalers or ultrasonic scalers - chlorhexidine - use during peri-surgical or as needed for acute soft tissue inflammation - Super-Floss - nylon fibers - thread for interproximal use between abutments and under extensions - Small interdental brushes (Proxibrushes) - for cleaning buccal & lingual abutment surfaces; all metal surfaces must be nylon coated The implant stability: {#the-implant-stability.QMultiChoice} ====================== - may be the key indicator of fixture health - marginal bone loss \> 0.1mm - radiographic radiolucency - All are correct We use radiographic assessment to: {#we-use-radiographic-assessment-to.QMultiChoice} ================================== - Determine bone loss - Assess future mobility without FPD removal - Determine the landmarks - Monitor implant success - All is correct Rapid bone loss seen if: {#rapid-bone-loss-seen-if.QMultiChoice} ======================== - Occlusal trauma - Wrong size of implant - Often scaling - Fractured fixture - Occlusal trauma and Fractured fixture are correct Dental Implant Prosthodontic procedure: {#dental-implant-prosthodontic-procedure.QMultiChoice} ======================================= - The same to prosthetic procedure for natural teeth - Learn new concepts of taking impressions - More meticulous occlusal adjustment to control biomechanical load on implant than on natural teeth. - The impression, lab-work, and delivery are the same of natural teeth procedure - Learn new concepts of taking impressions and More meticulous occlusal adjustment to control biomechanical load on implant than on natural teeth are correct The new ideas for implant prosthodontics do not include: {#the-new-ideas-for-implant-prosthodontics-do-not-include.QMultiChoice} ======================================================== - The Impression taking - The abutment selections - The fitness of prosthodontics - The superstructure with cement or screw retained. What factors do you consider for the section of implant abutment?: {#what-factors-do-you-consider-for-the-section-of-implant-abutment.QMultiChoice} ================================================================== - Soft tissue levels & thickness - Marginal bone level - Implant type, diameter, angulation - Mesio-distal dimension - All is correct We choose Screw retained due to : {#we-choose-screw-retained-due-to.QMultiChoice} ================================= - Easy to solve prosthetic complication - More esthetic - Easier passive fit - Time efficient & low cost One piece type of abutment: {#one-piece-type-of-abutment.QMultiChoice} =========================== - Mainly use in fixture level impression - Opened tray impression taking - Mainly use for the front teeth only - Mainly use in abutment level impression The disadvantage of Cement retained are: {#the-disadvantage-of-cement-retained-are.QMultiChoice} ======================================== - Difficult to retrieve - Compromise esthetic - Problem due to residual cement - Difficult to obtain passive fit - Difficult to retrieve and Problem due to residual cement are correct What are the 2 impression methods for implant impression?: {#what-are-the-2-impression-methods-for-implant-impression.QMultiChoice} ========================================================== - Open tray technic impression - Fixture level impression - Abutment level impression - Closed tray technic impression - Open tray technic impression and Closed tray technic impression are wrong Generally we take impression after implant placing: {#generally-we-take-impression-after-implant-placing.QMultiChoice} =================================================== - Maxillary 2 months later - Mandible 3 months later - Bone graft 5 months later - All is correct The impression taking procedure for Esthetic case : {#the-impression-taking-procedure-for-esthetic-case.QMultiChoice} =================================================== - 2nd Surgery + Impression +Healing abutment + final restoration - 2nd Surgery +Healing abutment +impression + final restoration - 2nSurgery +Healing abutment +impression +provisional restoration + impression + final restoration - 2nSurgery +impression +Healing abutment +provisional restoration + impression + final restoration. When do you select a fixture level impression?: {#when-do-you-select-a-fixture-level-impression.QMultiChoice} =============================================== - Posterior region with proper position and path of implant - A screw retained type restoration. - Proper position path and sufficient vertical space. - Full mouth fixed type implant restoration - A screw retained type restoration Full mouth fixed type implant restoration are correct When do you select an abutment level impression ?: {#when-do-you-select-an-abutment-level-impression.QMultiChoice} ================================================== - On the anterior esthetic region - A screw retained type restoration. - Proper position path and sufficient vertical space - Full mouth fixed type implant restoration What is the common problem with Plastic impression cap? : {#what-is-the-common-problem-with-plastic-impression-cap.QMultiChoice} ========================================================= - Abutment height - Abutment collar height - Path of implant - Gingival or Alveolar bone interference We can use transfer abutment as: {#we-can-use-transfer-abutment-as.QMultiChoice} ================================ - Abutment impression - Fixture level impression - Opened tray impression - Closed tray impression - All is correct Bucco-lingual angulation of Posterior teeth: {#bucco-lingual-angulation-of-posterior-teeth.QMultiChoice} ============================================ - Maxillary teethlingual tilting - Mandible teethbuccal tilting - Most of teeth tilted to mesial side - Distal curvature of natural teeth roots - All is not correct What is the common error of beginner for Mandible posterior implant ?: {#what-is-the-common-error-of-beginner-for-mandible-posterior-implant.QMultiChoice} ====================================================================== - Implant system selection - The length of implant - The Angulation of implant - The diameter of implant Firsrt Molar replacement with implant: {#firsrt-molar-replacement-with-implant.QMultiChoice} ====================================== - Two implants for one molar (one implant to one root) - Wide fixture for molar teeth - Easy site for implant - All is correct When the patient has the limitation of opening, the common errors for \#37, 47 implants are: {#when-the-patient-has-the-limitation-of-opening-the-common-errors-for-37-47-implants-are.QMultiChoice} ============================================================================================ - Possible lingual perforation - Suturing errors - Incorrect angle at drilling - Possible lingual perforation and Incorrect angle at drilling are correct - All are correct The advantages of Panorama radiography : {#the-advantages-of-panorama-radiography.QMultiChoice} ======================================== - Provide better solution - Produce anatomically truer images - Determine height of the bone - Minimize geometric distortion. - All are correct The distortion of Panorama : {#the-distortion-of-panorama.QMultiChoice} ============================ - Vertical distortion 40-60% and Horizontal distortion 20-40% - Vertical distortion 50-70% and Horizontal distortion 20-40% - Horizontal distortion 50-70% and Vertical distortion 20-40% - Vertical distortion 40-60% and Horizontal distortion 20-40% and Horizontal distortion 50-70% and Vertical distortion 20-40% are correct The Periapical Radiography : {#the-periapical-radiography.QMultiChoice} ============================ - Produce anatomically truer images - Available for only 1 fixture - Poor resolution - Convenience and easy - Produce anatomically truer images and Available for only 1 fixture are correct Radiology can : {#radiology-can.QMultiChoice} =============== - Determine bone quality and quantity - Verify superstructure fitness - Identify diseases - All are correct Risk factors of dental Implant for the Elderly person: {#risk-factors-of-dental-implant-for-the-elderly-person.QMultiChoice} ====================================================== - Xerostomia - Poor oral hygiene - Diabetes - Osteoporosis - All is correct What are not the concerns about dental implants for geriatric person ?: {#what-are-not-the-concerns-about-dental-implants-for-geriatric-person.QMultiChoice} ======================================================================= - Longer healing time - Inadequate osseointegration of implants - The assisted implant - Loss of implants due to inadequate oral hygiene Adequate Bone Volume for Implant by Spray JR et al. Ann periodontol 2000: {#adequate-bone-volume-for-implant-by-spray-jr-et-al.-ann-periodontol-2000.QMultiChoice} ========================================================================= - Thickness of 1 to 1.5mm buccal and lingual plate for ridge expansion - Favorable facial bone thickness 1.8 to 2.0mm. - At least 1mm buccal and lingual plate. - Minimum thickness of 1.5 to 2.5mm buccal and lingual plate Surgery for Density 2: {#surgery-for-density-2.QMultiChoice} ====================== - Bone compaction - Larger final drill - Tapping -- option - Bicortical installation Density 1: {#density-1.QMultiChoice} ========== - Thick cortical bone & dense sponge bone - Most preferred density - Posterior Mx - Almost cortical bone Density 4: {#density-4.QMultiChoice} ========== - Atrophic anterior Mx & Mn - Thin cortical bone with loose sponge bone - Almost cortical bone - Most preferred density Density 2 : {#density-2.QMultiChoice} =========== - Standard product protocol - Preservation of cortical bone - Reduce up and down during drilling - Almost cortical bone Mandible posterior region : {#mandible-posterior-region.QMultiChoice} =========================== - Generally, good bone quality but esthetic demand is high. - Implant system can be selected carefully. - We can place sometimes, short implant (5\~7mm length) - Immediate implantation is prohibited. The angulation of Posterior teeth : {#the-angulation-of-posterior-teeth.QMultiChoice} =================================== - Maxillary teeth buccal tilting - Mandible teethlingual tilting - Most of teeth tilted to mesial side - Distal curvature of natural teeth roots - All are correct Mesio-distal position of implant : {#mesio-distal-position-of-implant.QMultiChoice} ================================== - Natural tooth to implant at least 2-3mm and implant to implant 3-4mm - Center of restoration crown - Most of teeth tilted to distal side - Curvature of natural teeth root is buccally tilted Firsrt mandible molar replacement with implant: {#firsrt-mandible-molar-replacement-with-implant.QMultiChoice} =============================================== - Two implants for one molar (one implant to one root) - Wide fixture for molar teeth - Easy site for implant - All are correct Absolute Contraindications for Dental Implant: {#absolute-contraindications-for-dental-implant.QMultiChoice} ============================================== - Severe renal disorder - Myocardial infarction (MI) - Angina pectoris - Bacterial endocarditis Risk factors of dental Implant for the Elderly person: {#risk-factors-of-dental-implant-for-the-elderly-person-1.QMultiChoice} ====================================================== - Xerostomia - Poor oral hygiene - Diabetes - Osteoporosis - All are correct Relative Contraindications for Dental Implants: {#relative-contraindications-for-dental-implants.QMultiChoice} =============================================== - Active periodontal disease - Renal/pancreatic disorders - Recent myocardial infarction (MI) - Heavy smoking Dental Implant for Diabetes patients: {#dental-implant-for-diabetes-patients.QMultiChoice} ===================================== - Patients are at greater risk of infection - Dental implant is contraindicated in diabetic patients. - The accumulation of periopathogenic bacteria could cause peri-implantitis. - The bone density is weak. Implant Supported restorations are : {#implant-supported-restorations-are.QMultiChoice} ==================================== - The denture support is derived from the implants or bar - The denture relies on edentulous arches and implants - The denture relies on implants and attached structures - The denture support is derived from the implants or bar and The denture relies on implants and attached structures are corrects - All is incorrect What are the concerns about dental implants for geriatric person ?: {#what-are-the-concerns-about-dental-implants-for-geriatric-person.QMultiChoice} =================================================================== - Longer healing time - Inadequate osseointegration of implants - Loss of implants due to inadequate oral hygiene. - All of them are incorrect. The Success rate of healthy old person for implant: {#the-success-rate-of-healthy-old-person-for-implant.QMultiChoice} =================================================== - Not comparable to young population - Much lower than young person - Better than healthy adults - Similar to young age group Oral hygiene cannot predict when: {#oral-hygiene-cannot-predict-when.QMultiChoice} ================================= - Adequate instruction and recall - Complicated design of implant abutment - Good oral heath aids - Simple design of abutments are utilized. The group III of the residual ridge is: {#the-group-iii-of-the-residual-ridge-is.QMultiChoice} ======================================= - Resorption of basal bone - minor ridge remodeling - basal bone ridge - sharp atrophic residual ridge Adequate Bone Volume for Implant by Spray JR et al. Ann periodontol 2000: {#adequate-bone-volume-for-implant-by-spray-jr-et-al.-ann-periodontol-2000-1.QMultiChoice} ========================================================================= - Thickness of 1 to 1.5mm buccal and lingual plate for ridge expansion. - Favorable facial bone thickness 1.8 to 2.0mm - At least 1mm buccal and lingual plate. - Minimum thickness of 1.5 to 2.5mm buccal and lingual plate The Solution of Insufficient Bone Width: {#the-solution-of-insufficient-bone-width.QMultiChoice} ======================================== - Alveoloplasty - GBR - Small diameter fixture - Ridge expansion / split - All are correct The Rule 2 for mesio-distal position of implant is : {#the-rule-2-for-mesio-distal-position-of-implant-is.QMultiChoice} ==================================================== - Implant to tooth: 2\~3mm apart - Center of restorative crown - Implant to implant: 3\~4mm apart - At least 1mm buccal and lingual plate When the Bone Height is insufficient the solutions are: {#when-the-bone-height-is-insufficient-the-solutions-are.QMultiChoice} ======================================================= - Small diameter fixture - Short wide fixture - Alveoloplasty - Sinus lifting - Short wide fixture and Sinus lifting is correct Bone density of D2 is: {#bone-density-of-d2-is.QMultiChoice} ====================== - A thin layer of cortical bone with low-density trabecular - A dense trabecular bone of favorable strength - A thick layer of compact bone surrounding a core of trabecular bone - Homogenous compact bone We diagnose the bone density via: {#we-diagnose-the-bone-density-via.QMultiChoice} ================================= - Oral Examination - General health condition/ Age/sex of patient - Asking the patient - Model analysis Surgery technique for D2 : {#surgery-technique-for-d2.QMultiChoice} ========================== - Bone compaction - Larger final drill - Tapping -- option - Bicortical installation Which one is not recommended for Surgery of D4?: {#which-one-is-not-recommended-for-surgery-of-d4.QMultiChoice} ================================================ - Bone compaction - Bicortical installation - Larger final drill - Finish with hand wrench Surgery for D3: {#surgery-for-d3.QMultiChoice} =============== - Larger final drill - Bone tapping - Reduce final drill diameter - Fixture installation under 15N torque Healing Period of Rough surface implant: {#healing-period-of-rough-surface-implant.QMultiChoice} ======================================== - D1 4\~5 months - D2 2\~3 months - D3 6\~8 months - D4 3\~4 months Surgical Technique for Various Bone Density: {#surgical-technique-for-various-bone-density.QMultiChoice} ============================================ - Amount of torque during fixture installation - Drilling method - Size of final drill - A and B is correct - All are correct Bone Density D1: {#bone-density-d1.QMultiChoice} ================ - Thick cortical bone & dense sponge bone - Most preferred density - Posterior Mx - Almost cortical bone Bone Density D4: {#bone-density-d4.QMultiChoice} ================ - Atrophic anterior Mx & Mn - Thin cortical bone with loose sponge bone - Almost cortical bone - Most preferred density Surgical technique for D2: {#surgical-technique-for-d2.QMultiChoice} ========================== - Standard product protocol - Preservation of cortical bone - Reduce up and down during drilling - Almost cortical bone Ridge Expansion : {#ridge-expansion.QMultiChoice} ================= - Possible fracture, resorption, - Loss of cortical bone - Maxilla is easier than mandible - Loss of bone height - Loss of cortical bone and Loss of bone height is wrong Suggested Implant Diameter to Molar : {#suggested-implant-diameter-to-molar.QMultiChoice} ===================================== - 3.5\~4.0 - 4.0\~4.5 - 4.5\~5.0 - 3.5\~4.5 34. What are the traditional BraneMark protocols?: {#what-are-the-traditional-branemark-protocols.QMultiChoice} ================================================== - 12 months period after tooth extraction. - Healing period of 3 to 4 months. - Total treatment time 16 months. - All of them are correct. Attempt to shorten overall treatment length: {#attempt-to-shorten-overall-treatment-length.QMultiChoice} ============================================ - Immediate loading. - Immediate implant. - Implant surface design - All of them are correct. Why immediate implant?: {#why-immediate-implant.QMultiChoice} ======================= - No bone graft or membrane addition. - Initial stability. - Primary closure is fine. - Reduction of treatment time What is the contraindications for immediate implant?: {#what-is-the-contraindications-for-immediate-implant.QMultiChoice} ===================================================== - Endodontic failure. - Insufficient apical bone. - Traumatically avulsed tooth. - Periodontal bone loss without purulent. The measurements for the infected site : {#the-measurements-for-the-infected-site.QMultiChoice} ======================================== - Saline irrigation. - Antibiotic administration. - Stay clear of buccal plate. - All of them are incorrect. Surgical procedure for Immediatethe implant : {#surgical-procedure-for-immediatethe-implant.QMultiChoice} ============================================= - Prohibited area buccal / labial - 1mm of buccal bony wall for upper incisors. - Can not follow standard principal drilling. - Non of them is correct. Choose the correct answer for immediate implant: {#choose-the-correct-answer-for-immediate-implant.QMultiChoice} ================================================ - Reducing buccal retraction, flapless if no GBR. - Initial stability is not necessary. - Tooth mobility with chronic irritation is not a contraindications. - Site preparation followed MID B-L and MID M-D for maxillary incisors. Choose the wrong answer for immediate provisional restoration: {#choose-the-wrong-answer-for-immediate-provisional-restoration.QMultiChoice} ============================================================== - Space maintenance. - Preserve ridge contour. - Promoting osseointegration. - Promote peri implant mucosal health. Why delayed Implant placement ?: {#why-delayed-implant-placement.QMultiChoice} ================================ - Decreased patient\'s psychological stress. - Able to use longer implant. - Superior aesthetic result. - In the present of active infection. Rule for mesio distal position of implant : {#rule-for-mesio-distal-position-of-implant.QMultiChoice} =========================================== - Implant to implant 2\~3mm - Implant to tooth 3\~4mm - Center of restoration crown : - All of them are wrong. Antero posterior mandible : {#antero-posterior-mandible.QMultiChoice} =========================== - Mandibular canal is 6mm below 2nd molar apex - 12% patients, anterior loop of mandible canal exstends 5mm anterior to the mental foramen. - Mental foramen average 10-12mm from Mn interior border. - All of them are correct. Influence of bone density on Implant success rate : {#influence-of-bone-density-on-implant-success-rate.QMultiChoice} =================================================== - Lower success rate in anterior mandible. - Highest failure rate in posterior mandible. - Higher success rate in better bone quality. - These reported failure are primary related to surgery healing. The maxilla has a thin cortical plate and fine trabecular bone due to : {#the-maxilla-has-a-thin-cortical-plate-and-fine-trabecular-bone-due-to.QMultiChoice} ======================================================================= - The maxilla is a force absorption unit. - Any strain to the maxilla is transferred. - The maxilla is an independent structure. - All of them are wrong. Bone density and Hounsfield Units: {#bone-density-and-hounsfield-units.QMultiChoice} ================================== - D1 \< 1250 HU - D2 550- 750 HU - D3 350- 850 HU - D4250 - 450 HU - D5 \< 350 HU Bone density quality: {#bone-density-quality.QMultiChoice} ===================== - D1has greatest BIC - D4 magnitude of the strain is further apical - D2 has 65 - 75 BIC - Ti - D4 interface : pathologic overload. - All of them are correct. Implant Treatment plan : {#implant-treatment-plan.QMultiChoice} ======================== - Reducing stress when Bone density decreased. - D3 bone benefits from longer implant. - D4 bone one implant per one tooth. - All of them are correct. Treatment modifier when low bone density : {#treatment-modifier-when-low-bone-density.QMultiChoice} ========================================== - Implant number - Prosthetic designs - Implant surface condition - Implant size. - All of them are correct. What\'s the dental Implant ?: {#whats-the-dental-implant.QMultiChoice} ============================= - medical device to replace and act as a missing biological structure. - The Implants for plastic surgery. - An artificial tooth root replacement. - An Implant is placed for joint , breast, eyes. The top reason to choose a dental implant: {#the-top-reason-to-choose-a-dental-implant.QMultiChoice} ========================================== - Hight success rate. - Safe for adjacent natural teeth. - Preventing bone loss. - All are correct. The most successful and widely accepted dental implant : {#the-most-successful-and-widely-accepted-dental-implant.QMultiChoice} ======================================================== - Osseointegrated implant. - Endosseous implant. - Subperiosteal Implant. - Blade implant. Osseointegration is: {#osseointegration-is.QMultiChoice} ==================== - A lack of mobility and ability of the implant to resist functional loading. - Bone ingrowth into a metal implant. - Direct structure and functional connection between living bone and surface of implant. - All are correct. Interfering factors for osseointegration : {#interfering-factors-for-osseointegration.QMultiChoice} ========================================== - Traumatic surgery - Overloading - Implant movement - All of them are correct. Progressive loading : {#progressive-loading.QMultiChoice} ===================== - Functional loading within 48 hours after implant placement. - Stepwise, increased loading through primary restoration. - Prosthetic restoration after within 8 to 10 weeks after implant placement with temporary. - The prosthesis is attached in a second procedure after a healing period. Evolution of surface technology: {#evolution-of-surface-technology.QMultiChoice} ================================ - 2nd generation : RBM , SLA , HA coating , Fluoride. - 3rd generation : peptides, growth factors. - Rough surfaces are better osseointegration but smooth surface is less bone resorption. - 1st generation machined, sintering Choose the correct answer : {#choose-the-correct-answer.QMultiChoice} =========================== - The reduced implant survival is more related to arch location not bone density. - Mandible is a force distribution unit. - The trabecular bone in mandible is more coarse compared to the maxilla. - All of them is incorrect. Choose the incorrect answer: {#choose-the-incorrect-answer.QMultiChoice} ============================ - D4 bone is more likely to cause implant mobility and failure. - Each bone density has a different strength. - Bone density doesn\'t affect elastic modulus - The diagnosis of the bone density in a implant site is a key determinant for clinical success. The advantage of Implant : {#the-advantage-of-implant.QMultiChoice} ========================== - Better longevity. - No alveolar bone resorption. - More esthetic and higher bite fore compared to dentures. - All of them are correct.