Free Oral Anatomy MCQs Mock Test Online with Answers

Q1 : In comparison to maxillary central incisor , Maxillary canine has a height of contour that is______________?

A: More B: Less C: Same D: Different on different teeth

Q2 : Which of the following muscles moves the condyle and articular disc anterior and downwards on glenoid fossa______________?

A: Lateral pterygoid B: Medial pterygoid C: Temporalies- anterior fibers D: Temporalis – posterior fibers

Q3 : Posterior embrasures are generally larger on the lingual than on the facial, with the contact area within the facial moiety, except between maxillary_______________?

A: Premolars B: 1st and 2ndmolar C: 1st premolar and cane D: First molar and 2nd premolar

Q4 : A six- year molar begins to calcify at______________?

A: Six months IU B: At birth C: 1 years after birth D: 3 years age

Q5 : In an ideal occlustion buccal cusps of maxillary teeth, occlude with______________?

A: Fossa and rdges B: Grooves and embrasures C: Lingual cusps of mandibular teeth D: Occlusal pits and fissures of mandibular teeth

Q6 : Which statement is correct about decidous dentition?

A: Calcification of maxillary primary first premolar is completed at birth B: Mandibular first molar erupts at one and half years of age C: The crowns of primary dentition are more yellowish than permanent D: The primary dentition is initiated at 10th month in uterus

Q7 : The zygomatic bone does not articulate with________________?

A: Frontal bone B: Maxillary bone C: Nasal bone D: Temporal bone

Q8 : Which of the portions of the intra articular disc is the thinnest ?

A: Anterior B: Intermediate C: Posterior D: retrodiscal

Q9 : If the pulp of a single rooted tooth canal were triangular in cross section with the base of the triangle located facially and the apex lingually with a longer mesial side than distal side; the tooth most likely is_____________?

A: Maxillary central incisor B: Maxillary second premolar C: Mandibular lateral incisor D: Mandibular central incisor

Q10 : Greater crown bulk distal to the faciolingual bisecting plane of a tooth is most typical of the mandibular_______________?

A: Central incisor B: Lateral incisor C: Canine D: Second premolar (AIPG – 97, Man-95)

Q11 : When a molar has no opposing tooth, it can become_______________?

A: Extruded B: Intruded C: Protruded D: Retruded

Q12 : Maxillary first molar has how many roots ?

A: 1 facial and 2 lingual B: 1 lingual and 2 facial C: 1 mesial and 2 buccal D: 1 mesial and 1 distal

Q13 : A child has 12 permanent and 12 decidous teeth, what is his age____________?

A: 8½ years B: 11½ years C: 4½ years D: 13½ years

Q14 : Mesiodistal width is more than cervico- incisal length of crown in_____________?

A: Permanent central incisors B: Decidous maxillary central incisors C: Permanent maxillary canines D: Permanent mandibular lateral incisors

Q15 : First evidence of calcification of maxillary permanent central incisors occurs at_____________?

A: 3-4 months B: 10-12 months C: 2-3 years D: 3-4 years

Q16 : In occlusion the teeth have_______________?

A: Cusp to cusp contact B: Edge to edge contact C: Marginal contact D: Surface to surface contact

Q17 : The maxillary molar crown of an early fossil primate featured a trigone made of three main cusps, these cusps were_____________?

A: Distrobuccal, distolingual and Mesiolingual B: Distolingual, Mesiobuccal, and Linguo buccal C: Mesiobuccal, Distobuccal and Mesiolingual D: Mesiolingual, Mesiobuccal and distolingual

Q18 : According to Schour & Massler the crown completion of both permanent maxillary and mandibular first molars is________________?

A: 1½ 2 years B: 2½ – 3 years C: 3-4 years D: 3-5 years

Q19 : The tooth bud for the third molar is initiated at about the age of______________?

A: 6th month I.U B: 1st year of life C: 2nd year of life D: 8th year of life

Q20 : The primary lateral incisors begin to calcify about the_____________?

A: 4th month of life B: 4th month in utero C: 41/2 month in utero D: 5th month in utero

Q21 : Which of the following are the unctions of contact areas______________?

A: Distribution of occlusal stresses B: Protection of periodontium C: Stabilization of dental arches D: All of the above

Q22 : Divergence from contact area in proximal surfaces causes embrasures____________?

A: Facially B: Lingually C: Cervically D: Facially, lingually , cervically & occlusally

Q23 : Protective crests of contour on buccal and lingual surfaces are found______________?

A: In the middle third of the lingual B: Nearest the occlusal third of the lingual C: In the cervical third of the buccal D: Both A and C

Q24 : Conjoint tendon is formed by _________?

A: External and internal oblique B: External oblique and transversus abdominis C: Internal oblique and transversus abdominis D: Internal oblique

Q25 : Largest embrasure lies between______________?

A: Maxillary central incisors B: Maxillary central and lateral incisor C: Maxillary canine and first premolar D: Maxillary lateral incisor and canine

Q26 : Which muscle is responsible for translation of condyle ?

A: Medial pterygoid B: Masseter C: Superior constrictor of pharynx D: Lateral pterygoid

Q27 : Number of roots in maxillary 2nd molar is_______________?

A: 2 B: 3 C: 4 D: 5

Q28 : Distal contact of upper first premolar is________________?

A: Lower than mesial contact area B: Little cervical to junction of occlusal and middle third of crown C: Higher than mesial contact area D: A and B

Q29 : At birth the following teeth are calcifying____________?

A: Primary incisors & first molar B: Primary canines & second molars C: Permanent canines D: Permanent 3rd molar

Q30 : Permanent mandibular first molar is developed from ______ lobes?

A: 3 B: 4 C: 5 D: 6

Q31 : Which of the following has the maximum faciolingual diameter of the crown__________?

A: Decidous maxillary 2nd molar B: Decidous maxillary 1st molar C: Decidous mandibular 2nd molar D: Decidous mandibular 1st molar

Q32 : The embrasure areas in the following areas are contentious______________?

A: Labial and lingual B: Lingual and Occlusal C: Incisal and Occlusal D: Labial and Occlusal

Q33 : Which of the following has a bifid root ?

A: 32,42 B: 31,41 C: 34,44 D: 13,23

Q34 : Depression of mandible is achieved by_______________?

A: Digastric B: Lateral pterygoid C: Geniohyoid D: All of the above

Q35 : The usual order of appearance of the primary teeth in the mouth is____________?

A: Central incisors, first molars, lateral incisors, second molars, canines B: Central incisors, lateral incisors, canines, second molars, first molars C: Central incisors, lateral incisors, first molars canines, second molars D: Central incisors, lateral incisors, first molars second molars, canines

Q36 : In centric occlusion, the cusp tip of the maxillary canine is in alignment with which mandibular tooth_____________?

A: Facial embrasure of canine and premolar B: Distal ridge of the cusp of mandibular canine C: incisal embrasure of canine and premolar D: Mesial ridge on the facial cusp of mandibular first premolar

Q37 : The geometric outline of the buccal surface of posterior teeth are_______________?

A: Trapezoidal B: Rhomboidal C: Quadrilateral D: Square

Q38 : The contact area on the distal side of a maxillary first premolar is located _____________?

A: Middle of the middle third with buccal embrasure wider than lingual B: Middle of the middle third with lingual embrasure wider than buccal C: Litter cervical to the junction of occlusal and middle third of the crown with wide occlusal embrasure D: Cervical third with buccal embrasure wider than lingual embrasure

Q39 : Dentition of humans is_______________?

A: Herbivorous B: Omnivorous C: Carnivorous D: None of the above

Q40 : Which of the following decidous molars bears the greatest resemblance to a premolar _____________?

A: Maxillary first B: Maxillary second C: Mandibular first D: Mandibular second

Q41 : In the triangle formed by the projection of the orifices of the canals of a maxillary molar, the_________________?

A: Line connecting mesial with distal is longest B: Line connecting mesial with lingual is longest C: Line connecting distal with lingual is longest D: Angle at the mesio facial canal is obtuse

Q42 : The first evidence of calcification of primary anterior teeth begins approximately between ______________?

A: 14 to 17 weeks in utero B: 9 to 12 weeks in utero C: 6- to 9 weeks in utero D: 17 to 20 weeks in utero

Q43 : Retrusion of mandible is achieved by _______________?

A: Lateral pterygoid B: Temporalis C: Masseter D: None of the above

Q44 : Which of the premolars is usually the smallest____________?

A: Maxillary first B: Maxillary second C: Mandibular first D: Mandibular second

Q45 : Five cusps are present in___________________?

A: Maxillary first molar only B: Mandibular first molar only C: Maxillary and mandibular first molar D: Maxillary and Mandibular second molar

Q46 : The teeth that are retained for the longest period of time are__________________?

A: Maxillary incisors B: Maxillary canines C: Mandibular incisors D: B & D

Q47 : Crown formation of all permanent teeth except third molars is completed between_____________?

A: Birth to 8 years B: Birth to 12 years C: Birth to 6 years D: 6 years to 12 years

Q48 : As compared to permanent tooth , root formation in primary tooth______________?

A: Take less time B: Take more time C: Same time D: Is complete when tooth erupts in oral cavity

Q49 : The pulp of first primary molar contains________________?

A: Four pulp horn and three root canal B: Three pulp horn and three root canal C: Two pulp horn and two root canal D: Two pulp horn and three root canal

Q50 : The root completion of permanent teeth is achieved after __________ years o eruption?

A: 1-1½ B: 2-3 C: 3-4 D: 4-5

Q51 : An 8 – yr old child comes to your clinic with large front teeth having jagged margins, what is the treatment plan for this patient ?

A: Smoothen the jagged margins and apply fluoride varnish B: Build up other teeth to large size C: Extraction of big teeth D: Assure him and send him back

Q52 : Before eruption the position of permanent mandibular incisor buds relative to primary incisors is_____________?

A: Superior and facial B: Inferior and facial C: Superior and lingual D: Inferior and lingual

Q53 : IN occlusion, the teeth have______________?

A: Cusp – to – cusp contact B: Edge- to – edge contact C: Marginal contact D: Surface – to- surface contact

Q54 : A radiograph of 4- years old child reveals no evidence of calcification of mandibular second pre molar. This indicates______________?

A: It is too early to make final predication B: The teeth may develop later C: Primary second molar extracted to allow mesial drifting of permanent first molar D: The child may never develop premolars

Q55 : The premolar with the occlusal groove pattern that may simulate the letter “Y” is________________?

A: Maxillary first B: Maxillary second C: Mandibular second D: Mandibular first

Q56 : Which of the following movement (s) is / are involved in the opening of the mouth?

A: Only translation B: Only hinge ( rotation ) C: Hinge followed by translation D: Translation followed by hinge

Q57 : In which of the tooth is the mesiodistal measurements is greater lingually than facially________________?

A: Maxillary 1stpremolar B: Mandibular 2ndpremolar C: Mandibular 1st premolar D: Maxillary 1st molar

Q58 : Forward moment of mandible is done by_________?

A: Lateral pterygoid B: Medial pterygoid C: Temporalis – anterior fibers D: Temporalis- posterior fibers

Q59 : If a permanent first molar is lost, the permanent second molar drifts to the______________?

A: Buccal side B: Distal side C: Mesial side D: Lingual side

Q60 : On opening the mouth , if the jaw deviates to the right side, it indicates the paralysis of__________?

A: Right lateral pterygoid B: Left lateral pterygoid C: Right medial pterygoid D: Left medial pterygoid

Q61 : Primary teeth differ from permanent teeth in following aspects ?

A: Thickness of enamel and dentin B: Pulp chambers are longer C: Roots are flaring D: All of the above

Q62 : Kalu, a 6- years – old child, received tetracycline. Noticeable discoloration will be seen in______________?

A: Premolars, incisors and 1st molars B: Canine and 2nd molars C: Canines, premolars and2nd molars D: Incisors and 1st molars

Q63 : The biting forces at molar region during mastication is_______________?

A: 20 to 55 pounds B: 30 to 75 pounds C: 50 to 75 pounds D: 90 to 200 pounds

Q64 : The largest embrasure in posterior teeth is the__________?

A: Buccal B: Distal C: Lingual D: Occlusal

Q65 : All are true about calciotraumatic line, except______________?

A: Due to caries B: Due to death of odontoblastic layer C: It remains after caries is removed D: Because of odontoblastic migration from cell rich zone

Q66 : The most common curvature of the palatal root of maxillary first molar is_____________?

A: Facial B: Lingual C: Distal D: Mesial

Q67 : Articular disc of TMJ is__________?

A: Thickest posteriorly B: Narrow in the centre C: Strengthened by lateral pterygoid D: All of the above

Q68 : The eruption are of maxillary permanent lateral incisor is_____________?

A: 8-9 years B: 6-7 years C: 10-11 years D: 8-9 months

Q69 : Which of the following tooth shows largest Mesio- buccal ridge _____________?

A: Maxillary 1st premolar B: Maxillary 2nd premolar C: Mandibular 1st molar D: Mandibular 2nd premolar

Q70 : In the intercuspal position, the lingual cusp of maxillary 2nd premolar contacts the______________?

A: Mesial fossa of mandibular 1st molar B: Distal marginal ridge of mandibular 2ndmolar C: Distal fossa of mandibular 2ndpremolar D: Distal marginal ridge of mandibular 1st premolar

Q71 : The key to occlusion is_______________?

A: Maxillary permanent first molar B: Maxillary permanent second molar C: Maxillary primary first molar D: Maxillary primary second molar

Q72 : What is the thickness of the layer of primsless enamel found in primary teeth_____________?

A: 25 μm B: 50μm C: 75μm D: 100μm

Q73 : The most constant and valuable trait to differentiate among maxillary first, second and third molars i____________?

A: Depth of central fossae B: Number of roots C: Comparative size of the cusp of carabelli D: Relative position of the distolingual grooves

Q74 : Which of the following is true for permanent teeth________________?

A: Maxillary roots are inclined distally where as Mandibular roots are inclined mesially B: Maxillary molars are buccally inclined and Mandibular molars are inclined lingually C: Buccal cusps of lower and lingual cusps of upper are the functional cusp D: All of the above

Q75 : The first macroscopic indication of morphologic development of primary incisors approximately at____________?

A: 11 weeks in utero B: 14 weeks in utero C: 16 weeks in utero D: 6 weeks in utero

Q76 : Distobuccal cusp of 27 falls into ______________?

A: Embrasure of 37 & 38 B: Embrasure of 36 & 37 C: Mesial pit of 37 D: Immediately incisal to cingulam

Q77 : The two major fossa of permanent maxillary first molar________________?

A: Central fossa and mesial fossa B: Central and distal fossa C: Mesial and distal tringular fossa D: Distal fossa and distal tringaular fossa

Q78 : Among the difference between teeth in the decidous and the permanent dentition is that_____________?

A: Buccal surfaces of the permanent molars are flatter B: Cervical ridges are more pronounced in permanent molars C: Root trunks of decidous teeth are larger compared with their overall root lengths D: Crowns of decidous incisors are wider mesiodistally than their cervico incisal lengths

Q79 : Curve passing through the buccal and lingual cusp tips of the mandibular buccal teeth is______________?

A: Wilson curve B: Mansoon curve C: Curve of spee D: Caternary curve

Q80 : In maxillary 1st permanent molar, the 2 obtuse angles are________________?

A: Mesiolingual and mesiofacial B: Mesiofacial and distolingual C: Distofacial and mesiolingual D: Distofacial and mesiofacial

Q81 : Which of the following teeth have more than one occlusal form____________?

A: Maxillary 1st premolar B: Maxillary 2nd premolar C: Maxillary 1st molar D: Mandibular 1stmolar

Q82 : Which of the following gives the best description of erupted permanent teeth typically seen in a 9- years old______________?

A: Only molars B: All teeth except third molars C: 1,2,4,5,6,7 in all quadrants D: 1,2,6 in all quadrants

Q83 : First evidence of initiation of primary dentition is usually around_____________?

A: 4 months in utere B: Birth C: 4 months after birth D: One year after birth

Q84 : The contact area on the distal surface of a maxillary first premolar should be placed in________________?

A: Middle 3rd of proximal surface with lingual embrasure greater than the facial embrasure B: Occlusal 3rd of proximal surface with the lingual embrasure greater than facial embrasure C: Occlusal 3rd of proximal surface with facial embrasure greater than lingual embrasure D: Middle 3rd with facial embrasure greater than the lingual embrasure

Q85 : The tooth that is commonly seen in an abnormal relation and contact with its adjacent teeth of the same arch is ________________?

A: Mandibular first premolar B: Mandibular lateral incisor C: Maxillary central incisor D: Maxillary lateral incisor

Q86 : Which of the following is dental formula of a 9 years old child_____________?

A: 6 EDC21/ 6EDC21 B: 6EDCBA/ 6EDC21 C: EDC21/EDC21 D: 76EDC21/ 7EDC21

Q87 : The direction of enamel rods in decidous teeth is_____________?

A: Same as permanent teeth B: Inclined in an apical direction in the cervical third of crown C: Inclined in an occlusal direction in the cervical third of crown D: None of the above

Q88 : With respect to their permanent successors the sum of the mesidodistal diameters of the first and second decidous molar is generally ____________?

A: Less B: Greater C: The same D: Not related

Q89 : Buccal surface of posterior teeth are wider than lingual surface mesiodistally except in______________?

A: Maxillary first molar B: Mandibular second premolar C: Mandibular first molar D: Maxillary second premolar

Q90 : Which of the following premolars has a mesial marginal ridge more cervical than the distal marginal ridge________________?

A: Maxillary 1st premolar B: Maxillary 2ndpremolar C: Mandibular 1st premolar D: Mandibular 2nd premolar

Q91 : Largest cusp in permanent mandibular first molar is__________________?

A: Mesiobuccal B: Distobuccal C: Mesio lingual D: Distal

Q92 : A patient with a bleeding disorder with increased bleeding time and normal clotting time is suffering from________________?

A: Classic hemophilia B: Christmas disease C: Vitamin K deficiency D: Idiopathic thrombocytopenic purpura

Q93 : Which of the following muscle helps in depressing the mandible ___________?

A: Temporalis B: Massetor C: Lateral pterygoid D: Medial pterygoid

Q94 : The eruption age of maxillary permanent lateral incisor is________________?

A: 8-9 years B: 10-11 years C: 7-9 months D: 6-7 years

Q95 : Largest tooth in the mandibular arch is_________________?

A: Canine B: Decidous first molar C: Permanent first molar D: Third molar

Q96 : If a mandibular canine has bifurcated roots, they are most commonly placed_______________?

A: Mesial and distal B: Facial and lingual C: Mesiobuccal and distobuccal D: Mesiolingual and distolingual

Q97 : Calcification of all teeth except last molars are completed by____________?

A: 2 years B: 4 years C: 6 years D: 8 years

Q98 : The maxillary tooth exhibiting the greatest variation in root alignment is______________?

A: Central incisor B: First premolar C: Third molar D: Second molar

Q99 : Which of the following do not contribute to arch stability ?

A: Cusps B: Root forms C: Embrasures D: Periodontal fibers

Q100 : Using occlusal morphology as guide , the Mandibular third molar is most similar to______________?

A: Maxillary permanent first molar B: Mandibular permanent first molar C: Mandibular permanent second molar D: Mandibular decidous second molar

Free Oral Anatomy MCQs Mock Test Online with Answers

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