Free Oral Anatomy MCQs Mock Test Online with Answers

Q1 : 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

Q2 : Following eruption , the root of the maxillary central incisor completes development at what approximate age ?

A: 7 years B: 8 years C: 9 years D: 10 years

Q3 : 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

Q4 : Divergence from contact area in proximal surfaces causes embrasures____________?

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

Q5 : 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

Q6 : 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

Q7 : 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

Q8 : 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

Q9 : How many cusps does the crown of the maxillary first primary molar have ?

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

Q10 : 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

Q11 : 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

Q12 : Dentin islands are frequently found in the root canals of which of the following permanent teeth ?

A: Maxillary lateral incisor & mandibular canine B: Maxillary 2nd premolar & maxillary 1st molar C: Maxillary 2nd premolar & mandibular canine D: Maxillary 1st molar & mandibular 2nd premolar

Q13 : Which of the following is a smallest posterior tooth______________?

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

Q14 : The shape of the occlusal surface of the permanent maxillary first molar is___________?

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

Q15 : Calcification of all teeth except last molars are completed by____________?

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

Q16 : At birth the following teeth are calcifying____________?

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

Q17 : 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

Q18 : 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

Q19 : Over jet is defined as______________?

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

Q20 : 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

Q21 : Acute angled cusps in permanent maxillary first molar are_____________?

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

Q22 : The maxillary teeth which have single antagonist are__________?

A: Lateral incisors B: Permanent canines C: Permanent central incisors D: Third molars

Q23 : The zygomatic bone does not articulate with________________?

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

Q24 : 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

Q25 : Cervical cross section of maxillary first premolar is_____________?

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

Q26 : 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

Q27 : The permanent anterior tooth, which is most 20. Commonly atypical , is_____________?

A: Maxillary central incisor B: Maxillary lateral incisor C: Mandibular central incisor D: Mandibular 1st premolar

Q28 : 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

Q29 : The root completion of permanent teeth is achieved after __________ years o eruption?

A: 1-1½ B: 2-3 C: 3-4 D: 4-5

Q30 : Calcification of third molar begins at__________________?

A: 8 months B: 18 months C: 8 years D: 16 years

Q31 : 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

Q32 : Mandibular second premolar 3- cusp type id developed from_______________?

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

Q33 : Upper 4 resembles 5 from which aspect ?

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

Q34 : Which of the following is true about calcification of teeth ?

A: Calcification of primary teeth is almost complete at time of birth B: Calcification of all primary teeth and few permanent teeth complete at birth C: Calcification of all permanent teeth complete at birth D: Calcification of primary teeth starts around birth

Q35 : 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

Q36 : Basically TMJ is a_____________?

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

Q37 : Which of the premolars is usually the smallest____________?

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

Q38 : Primary canine erupts______________?

A: After D B: Before B C: After B D: After E

Q39 : 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

Q40 : 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

Q41 : Resorption of root of primary incisors starts at_____________?

A: 4 yrs B: 6 yrs C: 8 yrs D: 10 yrs

Q42 : 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

Q43 : 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

Q44 : What is the thickness of the layer of primsless enamel found in primary teeth_____________?

A: 25 μm B: 50μm C: 75μm D: 100μm

Q45 : Largest cusp in permanent mandibular first molar is__________________?

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

Q46 : 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

Q47 : The first permanent tooth to erupt in the oral cavity is the_____________?

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

Q48 : 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

Q49 : In anxious parent calls you that her 5- month -old child has still no teeth in his mouth then you should_____________?

A: Call and do radiographic survey B: Tell her that it is normal at this age C: Child has retarded growth D: Systemic problem

Q50 : 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

Q51 : In normal occlusion , with which grooves / surface of the permanent mandibular first molar does the mesiobuccal cusp of the permanent maxillary first molar occlude______________?

A: Distobuccal groove B: Mesial surface C: Mesiobuccal surface D: Transverse groove

Q52 : 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

Q53 : 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

Q54 : 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

Q55 : Most common morpholgical variation is seen in________________?

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

Q56 : In occlusion the teeth have_______________?

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

Q57 : Thinnest labial plate is found in the region of____________?

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

Q58 : 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

Q59 : The highest ( longest ) and sharpest cusp on the decidous mandibular first molar is____________?

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

Q60 : 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

Q61 : Which of the following permanent teeth is usually bilaterally symmetric when viewed labially and incissaly ______________?

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

Q62 : The number of point angles in a permanent mandibular first molar is_____________?

A: 6 B: 3 C: 4 D: 10

Q63 : 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

Q64 : The faciolingual angulation of the upper central incisor is approximately___________________?

A: 20° B: 28° C: 33° D: 38°

Q65 : 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

Q66 : The largest embrasure in posterior teeth is the__________?

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

Q67 : Maximum contact between occlusal surfaces, of maxillary and mandibular teeth occur during________________?

A: Centric occlusion B: Rest position C: Protrusive contacts D: Laterotrusive contacts

Q68 : Permanent Mandibular central incisor develops from_____________?

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

Q69 : A distinguishing characteristic of a maxillary first premolar that identifies it as right or left is the________________?

A: Height of the lingual cusp B: Mesial inclination of the lingual cusp C: Flattened area beneath the contact on the distal surface D: Greater length of the mesial cusp ridge on the lingual cusp ( AIPG- 98)

Q70 : Number of roots in maxillary 2nd molar is_______________?

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

Q71 : Which cusp is poorly developed in a permanent maxillary second molar_____________?

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

Q72 : The correct dentition in a 9- years old child is_____________?

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

Q73 : The curvature of the cervical line of most teeth will be approximately____________?

A: 2 mm less distally than mesially B: 1 mm less distally than mesially C: 2 mm less lingually than buccally D: 1 mm less lingually than buccally

Q74 : Which of the following muscle helps in depressing the mandible ___________?

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

Q75 : During the development of a tooth, sound coalescence of the lobes results in_____________?

A: Slender mesiodistally B: Slender anteroposteriorly C: Bulkier mesiodistally D: Buliker anteroposteriorly

Q76 : Which muscle is responsible for translation of condyle ?

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

Q77 : 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

Q78 : 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

Q79 : 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

Q80 : The drug of choice in the management of life threatening allergic reaction is______________?

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

Q81 : 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)

Q82 : 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

Q83 : The geometric outline of the buccal surface of posterior teeth are_______________?

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

Q84 : 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

Q85 : What is the functional form of anterior teeth from the mesial or the distal aspect ?

A: Rhomboidal B: Trapezoidal C: Elliptical D: Wedge- shaped

Q86 : How many pulpal horns are there in the mandibular second primary molar ?

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

Q87 : 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

Q88 : 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

Q89 : Which of the following features of a permanent maxillary lateral incisor aids in distinguishing it from a mandibular lateral incisor ?

A: Flattened root B: More pronounced lingual fossa C: Thinner incisal ridge D: Sharper proximal incisal angles

Q90 : Ratio of mesiodistal width to height of crown of maxillary canine is______________?

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

Q91 : 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

Q92 : The most common curvature of the palatal root of maxillary first molar is_____________?

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

Q93 : The sharpest cusp of primary first molar tooth is____________?

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

Q94 : 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

Q95 : Which bifurcation is closet to the cervical line (or) which surface has short root trunk length in a maxillary permanent first molar ?

A: Buccal B: Mesial C: Distal D: None of the above

Q96 : Cusp of carbelli is present on ________ surface of the permanent maxillary molar ?

A: Mesial surface B: Palatal surface C: Buccal surface D: Mesial half of the palatal surface

Q97 : 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

Q98 : Cusp of carbaelli can be considered a normal finding on____________?

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

Q99 : 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

Q100 : The maxillary tooth exhibiting the greatest variation in root alignment is______________?

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

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