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.Management Sciences
Category: Oral Anatomy
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
The zygomatic bone does not articulate with________________?
A. Frontal bone
B. Maxillary bone
C. Nasal bone
D. Temporal bone
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
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
Which teeth show less curvature on the crown above the cervical line than any other teeth_____________?
A. Maxillary anterior
B. Mandibular canine
C. Mandibular anteriors
D. Maxillary canine
When viewed occlusally, a primary mandibular second molar closely resembles which of the following mandibular teeth ?
A. Permanent second molar
B. Permanent first molar
C. Second premolar
D. Primary first molar
Articular disc of TMJ is__________?
A. Thickest posteriorly
B. Narrow in the centre
C. Strengthened by lateral pterygoid
D. All of the above
Depression of mandible is achieved by_______________?
A. Digastric
B. Lateral pterygoid
C. Geniohyoid
D. All of the above
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
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
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