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.Management Sciences
Category: Oral Anatomy
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
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
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
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
Desmodont is another name for_____________?
A. The tooth with one wall pocket
B. Tooth with three walled pocket
C. periodontal ligament
D. Dehiscence
Fourth canal is present in_____________?
A. Mesiobuccal roots of maxillary first molar
B. Distal root of mandibular first molar
C. Both of the above
D. None of the above
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
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
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
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