Free Oral Anatomy MCQs Mock Test Online with Answers

Q1 : 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

Q2 : Group function occlusion is common in_____________?

A: 10 – 14 years B: 15 -25 years C: Above 30 years D: Edentulous patients

Q3 : Which anterior teeth have both mesial and distal contact areas of at the incisal third____________?

A: Mandibular centrals B: Mandibular laterals C: Both A and B D: None of the above

Q4 : Number of roots in maxillary 2nd molar is_______________?

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

Q5 : Which of the following muscle helps in depressing the mandible ___________?

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

Q6 : Which of the following has a nonfunctional cusp ?

A: Mandibular canine B: Maxillary second premolar C: Mandibular first premolar D: None of the above

Q7 : The largest permanent tooth in the mouth usually is_____________?

A: Maxillary canine B: Mandibular canine C: Mandibular first molar D: Maxillary first molar

Q8 : The sharpest cusp of primary first molar tooth is____________?

A: Mesiobuccal B: Distobuccal C: Mesiolingual D: Distolingual

Q9 : The mesial surface of the crown is almost parallel to long axis and the root of a______________?

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

Q10 : Upper 4 resembles 5 from which aspect ?

A: Buccally B: Lingually C: Occlusal D: Proximally

Q11 : 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

Q12 : 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

Q13 : IN occlusion, the teeth have______________?

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

Q14 : 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

Q15 : The largest permanent tooth in the mouth usually is_____________?

A: Maxillary canine B: Mandibular canine C: Mandibular first molar D: Maxillary first molar

Q16 : Calcification of roots of decidous teeth is completed by_____________?

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

Q17 : A pronounced developmental groove is usually present on the mesial marginal ridge of a permanent________________?

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

Q18 : A new tooth is erupting in the mouth of a one and a half year old child. This tooth is most likely to be a decidous___________?

A: Maxillary central incisor B: Maxillary canine C: Mandibular lateral incisor D: Maxillary lateral incisor

Q19 : The last primary tooth to be replaced by a permanent tooth is usually the_____________?

A: Maxillary second molar B: Mandibular second molar C: Maxillary canine D: Mandibular canine

Q20 : At birth the following teeth are calcifying____________?

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

Q21 : The interdental papilla is located in the______________?

A: Facial embrasure B: Lingual embrasure C: Cervical embrasure D: Occlusal embrasure

Q22 : No. of cusps in mandibular 1st molar_____________?

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

Q23 : 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

Q24 : Dentition of humans is_______________?

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

Q25 : In which of the following areas is the alveolar process the thinnest_____________?

A: Lingual to the maxillary central incisors B: Lingual to the maxillary canines C: Buccal to the mandibular central incisors D: Lingual to the mandibular first molar

Q26 : Basically TMJ is a_____________?

A: Ball and socket joint B: Hinge and axis joint C: Synovial joint D: Diartmodal joint

Q27 : The drug of choice in the management of life threatening allergic reaction is______________?

A: Corticosteroids B: Antihistamines C: Adrenalin D: Diazepam

Q28 : Difference between primary and permanent enamel is_______________?

A: In prism arrangement B: in mineral content C: No difference in enamel, difference in dentin D: None of the above

Q29 : 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

Q30 : 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

Q31 : The premolar alveoli are what shape in cross section_____________?

A: Rectangular B: Triangular C: Kidney shaped D: Oval

Q32 : 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

Q33 : 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

Q34 : The lingual cusp of lower first premolar is compared to the development of____________?

A: Cusp of carabelli B: Distolingual cusp of molars C: Lingual cusp of second premolar D: Cingulam of canine

Q35 : 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

Q36 : 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

Q37 : In which of the following a nonfunctional cusp is present________________?

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

Q38 : Oblique ridge in maxillary first molar joins which of the following cusps____________________?

A: DL and DB B: ML and MB C: ML and DB D: DL and MB

Q39 : The widest incisal embrasure is normally found between which of the following permanent maxillary teeth _____________?

A: Central incisors B: Central and lateral incisors C: Lateral incisor and canine D: First and 2nd premolar

Q40 : 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)

Q41 : How many pulpal horns are there in the mandibular second primary molar ?

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

Q42 : The shape of the occlusal surface of the permanent maxillary first molar is___________?

A: Oval B: Trapezoidal C: Triangular D: Rhomboidal

Q43 : Mesial concavity making the prognosis poor for a furcation involvement is present in_____________?

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

Q44 : The side towards which mandible moves is called the_____________?

A: Tooth contact side B: Balancing side C: Working side D: Non- working side

Q45 : Lateral movement of condyle is caused by_____________?

A: Contralateral lateral pterygoid muscle B: Both lateral and medial pterygoid muscle C: Epsilateral lateal pterygoid muscle D: Bilateral contraction of lateral pterygoid muscle

Q46 : In how many years, the central incisors erupt as permanent teeth ______________?

A: 8-9 years B: 10-12 years C: 6-7 years D: 17-25 years

Q47 : Over jet is defined as______________?

A: Horizontal overlap B: Vertical overlap C: Transverse plane discrepancy D: All the above

Q48 : 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

Q49 : Maxillary primary cuspid enamel completion takes place at______________?

A: 6 months in utero B: 6 months after birth C: 9 months in utero D: 9 months after birth

Q50 : 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

Q51 : Mandibular second premolar 3- cusp type id developed from_______________?

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

Q52 : The mesial contact are of the permanent canine is at the_______________?

A: Middle third B: Junction of incisal and medial thirds C: Junction of the middle & cervical thirds D: None of the above

Q53 : In the majority of situations, that first decidous tooth to erupt is the____________?

A: Mandibular central incisor B: Mandibular first molar C: Maxillary central incisor D: Maxillary second molar

Q54 : Ratio of mesiodistal width to height of crown of maxillary canine is______________?

A: 6:10 B: 8:10 C: 6:8 D: 7:10

Q55 : 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

Q56 : Which of the portions of the intra articular disc is the thinnest ?

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

Q57 : Which teeth show less curvature on the crown above the cervical line than any other teeth_____________?

A: Mandibular canine B: Maxillary anterior C: Mandibular anteriors D: Maxillary canine

Q58 : The highest ( longest ) and sharpest cusp on the decidous mandibular first molar is____________?

A: Mesiolingual B: Distolingual C: Mesiobuccal D: Distobuccal

Q59 : The shape of the occlusal surface of the permanent maxillary first molar is_______________________?

A: Oval B: Trapezoidal C: Triangular D: Rhomboidal

Q60 : 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

Q61 : Which four mandibular teeth are so aligned that when viewed from the occlusal, a straight line may be drawn bisecting the contact areas_____________?

A: 5,6,7,8 B: 4,5,6,7 C: 3,4,5,6 D: 2.3.4.5

Q62 : Generally in majority of children, the sequence of eruption of permanent teeth in mandible is____________?

A: 1-6-2-3-5-4-7-8 B: 6-1-2-4-5-3-7-8 C: 6-1-2-3-4-5-7-8 D: 6-1-2-4-3-5-7-8

Q63 : Permanent Mandibular central incisor develops from_____________?

A: 1 lobe B: 3 lobes C: 4 lobes D: 5 lobes

Q64 : Which among the following is NOT a common finding of the decidous dentition ?

A: Tight contacts, absence of spacing B: Shallow overjet and overbite C: Flush terminal plane D: Ovoid arch form

Q65 : 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

Q66 : In the majority of situations, the first decidous tooth to erupt is the______________?

A: Mandibular central incisor B: Mandibular first molar C: Maxillary central incisor D: Maxillary second molar

Q67 : Longest tooth of the maxillary arch is_____________?

A: Permanent incisor B: First premolar C: Permanent canine D: Decidous incisor

Q68 : The primary teeth that present the most outstanding morpholgic deviations from permanent teeth are______________?

A: Central incisors B: Mandibular first molar C: Mandibular second molar D: Canines

Q69 : Cervical cross section of maxillary first premolar is_____________?

A: Dumbell B: Kidney shape C: Elliptical D: Oval

Q70 : Which of the following moment are performed by a non- working condyle ?

A: Straightward B: Down wards forwards and lateral C: Down wards forwards and medial D: Down wards Back wards and medial

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 : 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

Q73 : Which of the premolars is usually the smallest____________?

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

Q74 : Calcification of all teeth except last molars are completed by____________?

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

Q75 : 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

Q76 : Which of the following is the largest root_____________?

A: The lingual root of a maxillary first molar B: The lingual root of a maxillary second molar C: The root of a mandibular canine D: The root of a maxillary canine

Q77 : Which of the following is true of permanent first molar’s occlusal surface_____________?

A: Maxillary molar has 2 major fossa, 2 minor fossa, 4 triangular ridges,1 oblique ridge and 5 grooves B: Mandibular molar has 1 major fossa, 2 minor fossa, 5 triangular ridges and 4 grooves C: Rhomboidal shape in maxillary molars and hexagonal shape in Mandibular molars D: All of the above

Q78 : A maxillary right canine may be distinguished from a maxillary left canine because ____________?

A: The root curves to mesial in the apical 1/3rd B: The distal half of canine shows more convexity than the mesical half C: Facially the cusp tip is placed distal to Bisecting line D: Lingually the cervical line slopes mesially

Q79 : The process of exfolitation of primary teeth is between_____________?

A: Seventh and eight years B: Seventh and eight years C: Seventh and tenth years D: Seventh and Twelfth years

Q80 : Generally , contact areas between posterior teeth are located in which directions from the centr of the proximal surface ____________?

A: Facially and occlusally B: Facially and gingivally C: Lingually and gingivally D: Lingually and occlusally

Q81 : 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

Q82 : 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

Q83 : Thinnest labial plate is found in the region of____________?

A: Upper central incisors B: Lower central incisors C: Upper canines D: Lower canines

Q84 : The shortest root on a maxillary first molar is_____________?

A: Mesio- buccal B: Disto – buccal C: Lingual D: All are of equal length

Q85 : Contact areas of anterior teeth which are placed in centre of middle third ____________?

A: Mesial contacts of maxillary lateral and canine B: Distal contacts of maxillary centrals and laterals C: Distal contacts of maxillary laterals and canine D: Mesial contacts of maxillary first and second premolar

Q86 : The shape of the occlusal surface of the permanent maxillary first molar is_______________________?

A: Oval B: Trapezoidal C: Triangular D: Rhomboidal

Q87 : Divergence from contact area in proximal surfaces causes embrasures____________?

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

Q88 : 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

Q89 : 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

Q90 : Root completion of the mandibular first molar takes place by the age_______________?

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

Q91 : 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

Q92 : Palatogingival groove is found in______________?

A: Maxillary lateral incisor B: Maxillary first premolar C: Maxillary first molar D: All of the above

Q93 : On which of the following permanent teeth is it most difficult to distinguish between mesial and distal aspects ?

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

Q94 : 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

Q95 : The root of maxillary lateral incisors if curved is usually in which direction ?

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

Q96 : The decidous canine emerges______________?

A: Before lateral incisor B: Before first molar C: After first molar D: After second molar

Q97 : The correct dentition in a 9- years old child is_____________?

A: 12 CDE6 B: 12C456 C: 123DE6 D: 123456

Q98 : Which cusp is poorly developed in a permanent maxillary second molar_____________?

A: DB B: DL C: MB D: ML

Q99 : 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

Q100 : Single central pit is formed on occlusal surface of_______________?

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

Free Oral Anatomy MCQs Mock Test Online with Answers

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