5301. The primary centre of formation of each lobe is present in_____________?
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A. Centre of the tooth

B. Apex of the root

C. Tip of the cusp

D. Centre of the crown

5304. Difference between mandibular and maxillary premolars is that in the mandibular premolars ?
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A. The buccal surface is rounded and less developed

B. The buccal and lingual cusps are more prominent

C. The lingual cusp is sharper and longer

D. The lingual surface rounded and less developed
5305. In the triangle formed by the projection of the orifices of the canals of a maxillary molar, the_________________?
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A. Line connecting mesial with lingual is longest

B. Angle at the mesio facial canal is obtuse

C. Line connecting mesial with distal is longest

D. Line connecting distal with lingual is longest

5308. The term diphydont means____________?
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A. Two separate sets of dentition

B. Two same sets of dentition

C. More than two sets of dentition

D. Second dentition

5309. The maxillary molar crown of an early fossil primate featured a trigone made of three main cusps, these cusps were_____________?
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A. Distolingual, Mesiobuccal, and Linguo buccal

B. Distrobuccal, distolingual and Mesiolingual

C. Mesiobuccal, Distobuccal and Mesiolingual

D. Mesiolingual, Mesiobuccal and distolingual

5310. Protective crests of contour on buccal and lingual surfaces are found______________?
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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
5311. The most constant and valuable trait to differentiate among maxillary first, second and third molars i____________?
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A. Comparative size of the cusp of carabelli

B. Relative position of the distolingual grooves

C. Depth of central fossae

D. Number of roots

5312. Fourth canal is present in_____________?
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A. Mesiobuccal roots of maxillary first molar

B. Distal root of mandibular first molar

C. Both of the above

D. None of the above

5314. The two major fossa of permanent maxillary first molar________________?
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A. Distal fossa and distal tringaular fossa

B. Mesial and distal tringular fossa

C. Central fossa and mesial fossa

D. Central and distal fossa
5315. The mesial contact are of the permanent canine is at the_______________?
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A. Junction of the middle & cervical thirds

B. Middle third

C. None of the above

D. Junction of incisal and medial thirds

5316. Which teeth the proximal aspect shows rhomboidal appearance________________?
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A. Maxillary posteriors

B. Mandibular posteriors

C. Maxillary anteriors

D. Mandibular anteriors

5318. Upper 4 resembles 5 from which aspect ?
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A. Lingually

B. Occlusal

C. Buccally

D. Proximally

5320. Most common morpholgical variation is seen in________________?
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A. Mandibular lateral incisor

B. Maxillary canine

C. Maxillary lateral incisor

D. Mandibular canine

5321. Position and movement of articular disc of TMJ is controlled by fibers of_____________?
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A. Sphenomandibular ligament

B. Lower head of lateral pterygoid muscle

C. Upper head of lateral pterygoid muscle

D. Superficial head of medial pterygoid muscle

5322. The curvature of the cervical line of most teeth will be approximately____________?
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A. 1 mm less distally than mesially

B. 2 mm less distally than mesially

C. 1 mm less lingually than buccally

D. 2 mm less lingually than buccally

5323. Generally , contact areas between posterior teeth are located in which directions from the centr of the proximal surface ____________?
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A. Lingually and gingivally

B. Lingually and occlusally

C. Facially and occlusally

D. Facially and gingivally

5324. In which of the tooth is the mesiodistal measurements is greater lingually than facially________________?
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A. Mandibular 2ndpremolar

B. Maxillary 1st molar

C. Mandibular 1st premolar

D. Maxillary 1stpremolar

5325. Dentin islands are frequently found in the root canals of which of the following permanent teeth ?
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A. Maxillary 2nd premolar & maxillary 1st molar

B. Maxillary 2nd premolar & mandibular canine

C. Maxillary lateral incisor & mandibular canine

D. Maxillary 1st molar & mandibular 2nd premolar

5326. The shortest root on a maxillary first molar is_____________?
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A. Lingual

B. All are of equal length

C. Disto buccal

D. Mesio- buccal

5327. Which is the predominant factor in the formation of the alveolar process_____________?
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A. Eruption of teeth

B. Overall growth of the bodies of the maxilla and the mandible

C. Normal process of growth

D. Lengthening of the condyle

5329. Which of the following has a nonfunctional cusp ?
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A. Mandibular canine

B. Maxillary second premolar

C. Mandibular first premolar

D. None of the above

5333. On opening the mouth , if the jaw deviates to the right side, it indicates the paralysis of__________?
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A. Left medial pterygoid

B. Right lateral pterygoid

C. Right medial pterygoid

D. Left lateral pterygoid

5335. Mesial concavity making the prognosis poor for a furcation involvement is present in_____________?
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A. Maxillary 2nd premolar

B. Maxillary 1st premolar

C. Mandibular 1st premolar

D. Maxillary canine

5336. Mesial contact area of the permanent canine is at the______________?
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A. None of the above

B. Junction of the middle and cedrvical thirds

C. Junction of the incisal and middle thirds

D. Middle third

5337. In maxillary 1st permanent molar, the 2 obtuse angles are________________?
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A. Mesiolingual and mesiofacial

B. Distofacial and mesiofacial

C. Mesiofacial and distolingual

D. Distofacial and mesiolingual
5338. The permanent anterior tooth, which is most 20. Commonly atypical , is_____________?
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A. Maxillary central incisor

B. Mandibular 1st premolar

C. Mandibular central incisor

D. Maxillary lateral incisor
5339. All embrasure spaces are reflection of the______________?
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A. Form of the teeth involved

B. None of the above

C. Size of the teeth involved

D. Eruption sequence involved

5341. A distinguishing characteristic of a maxillary first premolar that identifies it as right or left is the________________?
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A. Flattened area beneath the contact on the distal surface

B. Mesial inclination of the lingual cusp

C. Height of the lingual cusp

D. Greater length of the mesial cusp ridge on the lingual cusp ( AIPG- 98)

5342. Buccal surface of posterior teeth are wider than lingual surface mesiodistally except in______________?
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A. Mandibular first molar

B. Maxillary first molar

C. Mandibular second premolar

D. Maxillary second premolar

5344. Which of the following premolars has a mesial marginal ridge more cervical than the distal marginal ridge________________?
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A. Mandibular 1st premolar

B. Mandibular 2nd premolar

C. Maxillary 1st premolar

D. Maxillary 2ndpremolar

5345. Largest embrasure lies between______________?
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A. Maxillary lateral incisor and canine

B. Maxillary central incisors

C. Maxillary canine and first premolar

D. Maxillary central and lateral incisor

5347. All are true about calciotraumatic line, except______________?
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A. Due to caries

B. It remains after caries is removed

C. Due to death of odontoblastic layer

D. Because of odontoblastic migration from cell rich zone

5348. Largest cusp in permanent mandibular first molar is__________________?
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A. Mesiobuccal

B. Mesio lingual

C. Distal

D. Distobuccal

5349. Which anterior teeth have both mesial and distal contact areas of at the incisal third____________?
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A. Mandibular centrals

B. Mandibular laterals

C. Both A and B

D. None of the above