Dental Morphology Past Paper PDF 2024-2025

MCQ for Basic Dental Biomaterials Dr. 3mmar 2019-2020 MCQ for Dental Morphology 2024-2025...

MCQ for Basic Dental Biomaterials Dr. 3mmar 2019-2020 MCQ for Dental Morphology 2024-2025 Total dental academy Chapter 5 8 Mechanical Properties  MCQ for Introduction - Total 2025 1) Choose the most correct answer 1- identifying number of permanent mandibular left second molar in two-digit numbering system a- 52 b- 18 c- 17 d- 37 2- all of the following teeth have no predecessors except: a- maxillary, mandibular premolars b- permanent maxillary, mandibular first molar. c- permanent maxillary, mandibular second molar d- permanent maxillary, mandibular 3rd molar. 3- the successor of the maxillary first deciduous molar is a- upper first permanent molar. b- upper second premolar. c- upper first premolar. d- upper second molar. 4- according to two-digit system; 81 & 53 refer to: a- upper right central incisor & lower left permanent third molar. b- Upper right second premolar & lower right deciduous canine. c- Lower right deciduous central incisor & upper right deciduous canine d- Upper left permanent central incisor & upper right deciduous canine. 5- using the universal system; tooth #30 is which of the following: a- left mandibular 1st premolar b- right maxillary 1st premolar. c- primary right maxillary central incisor d- permanent right mandibular first molar 6- the tooth which is located second from the midline in the maxillary left quadrant is which tooth using the universal system?? a- #7d b- #23 c- #10D d- #25 7- using the universal system tooth B refers to: a- primary left mandibular second molar b- primary right maxillary 1st molar. c- permanent right maxillary canine. d- permanent left maxillary lateral incisor 8- which of the following is not considered one of tooth tissue?? a- Enamel b- Dentine c- Pulp d- Periodontal ligament 9- the portion of tooth that’s exposed in the mouth is known as the: a- clinical crown b- operative crown c- anatomical crown d- natural crown 10- the portion of tooth that’s embedded variably into the alveolar bone: a- clinical root b- operative root c- anatomical root d- natural root. e- all of the above  MCQ for Introduction - Total 2025 11- lobe is the primary center of calcification, growth of the teeth, its represented on the surfaces by a- marginal ridges & mamelons & cusps b- Cusps & mamelons & cinuglum c- Cingulum & cusp of carabelli & mamelons d- Marginal & cervical & lingual ridges. 12- which of the following is not a representative of a lobe? a- cusp b- mamelons c- tubercle d- cingulum 13- how many cingula are there in the permanent dentition a- 8 b- 16 c- 12 d- 6 14- linear incomplete fusion of two developmental lobes a tooth is known as: a- supplemental groove b- developmental groove c- fissure d- pit 15- there are two lingual fossae on the lingual surface of: a- upper lateral incisors b- maxillary canine c- mandibular canine d- lower lateral 16- which of the following ridges is not found on anterior teeth? a- marginal ridge b- lingual ridge c- labial ridge d- triangular ridge 17- excessive localized formation of enamel on the mesio-lingual cusp of upper 6 is a- tubercle b- false cusp c- cusp of carabelli d- a,c e. all of the above 18- lingual ridge is a characteristic feature of the lingual surface of a- upper central incisor b- lower central, lower lateral c- upper canine d- upper molars 19- the linear elevation that form the lateral boundaries of occlusal surface of posterior teeth and the lingual surfaces of anterior teeth: a- Cusp ridges b- Cervical ridges c- Triangular ridges d- Marginal ridges 20- what is the name of the feature on the lingual surface of maxillary canine that extends from the cusp tip on down on the cinglum of the tooth a- Mesial cusp ridge b- Mesial marginal ridge c- lingual ridge d- non of the above. 21- occlusal surface of permanent mandibular first molar has shown many cusps? a- 3 b- 4 c- 5 d- 6 22- cusp of carabelli is found on which areas of the crown of upper 6 ? a- distofacial b- distofacial c- mesiolingual d- distolingual  MCQ for Introduction - Total 2025 23- caries usually begins on all of the following areas except? a- fissure b- pits c- lingual fossa 24- caries begins at which of the following anatomical land marks a- true pit b- false pit c- fissure d- (a – c) e- all of the above. 25- which of the following ridges present on all teeth a- marginal ridges b- cervical ridges c- cusp ridge d- (a – b). e- all of the above 26- all of the following teeth have no predecessors except: a- maxillary, mandibular premolars b- permanent maxillary, mandibular first molar. c- permanent maxillary, mandibular 2nd molar d- permanent maxillary, mandibular 3rd molar. 27- the cusp canine developed from a- Mesial lobe b- middle lobe c- distal lobe d- lingual lobe 28- which of the following teeth may have two roots a- 43 b- 5 c- #25 d- (a – c) all of the above. 29- Mixed dentition period begins with the emergence of which of the following permanent teeth a- First molar b- First premolar c- Lower incisors d- upper canine 30- the transverse ridge result from the union of a- two triangular ridges b- two marginal ridges c- two cervical ridges d- non of the above 31- which of the following is point angle in posterior teeth a- mesio-lingo-occlusal point angle b- disto-labio-occlusal point angle c- mesio-occluso-distal point angle d- non of the above. 32- area where the crown of adjacent teeth in the same arch touch on each proximal surface a- occlusion b- Contact area c- cinglum d- Cervical line 33- the portion of the tooth that covered with cementum is called: a- clinical root b- anatomical root c- clinical crown d- anatomical crown.  MCQ for Introduction - Total 2025 34- number of point angles in both anterior and posterior teeth are equal & equal 6 point angles a- true b- false 35- which of the following is line angle in anterior teeth a- Mesio-incisal line angle b- disto-labial line angle c- disto-incisal line angle d- all of the above 36- linear elevation result from union of two triangular ridges not opposing two each other a- triangular ridge b- marginal ridge c- transverse ridge d- oplique ridge 37- fault pit is a pin point depression present in the end of developmental groove while true pit is a pin point depression present in the depth of fossa a- true b- false 38- U-shape or valley shape incline from cusp tip , meet in developmental groove a- fissure b- triangular ridge c- sulcus d- supplemental groove 39- which the permanent teeth replaced the deciduous second molar. a- second molar b- first moral c- second premolar d- non of the above 40- which of the following premolar has the most numerous supplemetal grooves? a- upper 4 b- upper 5 c- lower 4 d- lower 5 41- which of the following molars has the most numerous supplemetal grooves? a- upper 6, lower 6 b- upper 7, lower 7 c- upper 8, lower 8 42- a shallow linear depression on the surface of tooth that doesn’t mark the junction of lobe is…. a- fissure b- developmental groove c- false pit d- supplemental groove. 43- which of the following ridges is present on all anterior teeth? a- lingual ridge b- marginal ridge c- cusp ridge 44- which of the following ridges are present on the all teeth? a- cervical ridge b- marginal ridge c- cusp ridge d- all of the above e- (a, b) 45- which of the following premolar might have more than 4 lobes? a- upper 4 b- upper 5 c- lower 4 d- lower 5 46- …………… is the part of the tooth that covered by Enamel or outer covering of the tooth a- Clinical crown b- anatomical crown c- clinical root d- Anatomical root MCQ for Introduction - Total 2025 47- the tubercle of carabelli is found on the a- premolars b- central incisors c- maxillary 1st molar d- maxillary 2nd molar 48- in universal numbering system; the maxillary permanent premolars are: a- #4, #5 , #12 , #13. b- #14, #15 , #24 , #25. c- #20, #21 , #28 , #29. d- #34 , #35 , #44 , #45. 49- the succedenuous teeth of second deciduous molar is a- 2nd permanent molar b- 1st permanent molar c- 2nd premolar d- 1st premolar 50- the predecessor of mandibular 1st premolar is a- mandibular E b- mandibular D c- mandibular E d- has no predecessor 51- the ridges which descend from the tip of the cusp of maxillary 1st premolar to the central part of occlusal aspect is called a- Cusp ridges b- marginal ridges c- Triangular ridges d- transverse ridges 52- the ugly duckling stage begins by ……… of ………….. at …….. years and end by ………… at …. years a- eruption - maxillary first molar – 6 – shedding of second deciduous molar – 12 b- eruption - mandibular first molar – 6 – eruption of second deciduous molar – 12 c- shedding - maxillary first molar – 7 – shedding of second deciduous molar – 12 d- eruption - mandibular first molar – 6 – shedding of second deciduous molar – 12 53- identifying number of permanent tooth which has 5 lobes. a- 46 b- 25 c- 35 d- 16 e- (a, c) f- all of the above. 54- according to two-digit system; 81 & 53 refer to: e- upper right central incisor & lower left permanent third molar. f- Upper right second premolar & lower right deciduous canine. g- Lower right deciduous central incisor & upper right deciduous canine h- Upper left permanent central incisor & upper right deciduous canine. i- 55- using the universal system tooth B refers to: a- primary left mandibular second molar b- primary right maxillary 1st molar. c- permanent right maxillary canine. d- permanent left maxillary lateral incisor 56- which of the following is line angle in anterior teeth a- Mesio-incisal line angle b- disto-labial line angle c- disto-incisal line angle d- all of the above MCQ for Introduction - Total 2025 57- number of point angles is ……. In Anterior , ………… in posterior while number of line angles is ……….. in anterior , ………….. posterior? a- 4 -6 – 8 -4 b- 4- 4- 6 - 8 c- 4 – 4 – 8 - 6 d- non of the above 58- the term trifurcation refers to the: a- point where three-line angles meet. b- point at which three occlusal grooves meet c- point at which three roots divide. d- point at which three ridges meet 59- …………. are multicuspid and multirooted teeth. a- all premolars b- all molars c- all premolars and some molars d- all premolars, molars. 60- which of the following ridges is not present on all posterior teeth? a- marginal ridge b- triangular ridge c- transverse ridge d- cusp ridge 61- all of the following are point angle except: a- Disto-bucco-occlusal b- Mesio-lingo-occlusal c- Disto-mesio-occlusal d- mesio-bucco-occlusal 62- the union of 2 triangular cusp ridge of posterior teeth in transverse direction is a- Non pf these b- transverse ridge and found in upper primary premolars c- transverse ridge and found in permanent mandibular molar (mainly second molar). d- transverse ridge and found in upper primary molar 63- the ridge which descend from the tip of the cusp of maxillary 1st premolar to the central part of occlusal aspect is called a- Cusp ridges b- marginal ridges c- Triangular ridges d- transverse ridge 64- identifying number of permanent teeth which has 5 lobes. a- 46 b- 25 c- 35 d- 16 e- (a, c) f- all of the above. 65- which of the following is line angle in anterior teeth a- Mesio-incisal line angle b- disto-labial line angle c- disto-incisal line angle d- all of the above ------------------------------------------------------------------------------