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.Management Sciences
Category: Oral Anatomy
What is the amount of time required by erupting premolar to move through 1 mm of bone as measured on a bite – wing radigraph ?
A. 3-4 months
B. 4-5 months
C. 5-6 months
D. 6-7 months
Mesial contact area of the permanent canine is at the______________?
A. Middle third
B. Junction of the incisal and middle thirds
C. Junction of the middle and cedrvical thirds
D. None of the above
In maxillary 1st permanent molar, the 2 obtuse angles are________________?
A. Mesiolingual and mesiofacial
B. Mesiofacial and distolingual
C. Distofacial and mesiolingual
D. Distofacial and mesiofacial
The largest permanent tooth in the mouth usually is_____________?
A. Maxillary canine
B. Mandibular canine
C. Mandibular first molar
D. Maxillary first molar
Longest tooth of the maxillary arch is_____________?
A. Permanent incisor
B. First premolar
C. Permanent canine
D. Decidous incisor
Maximum contact between occlusal surfaces, of maxillary and mandibular teeth occur during________________?
A. Centric occlusion
B. Rest position
C. Protrusive contacts
D. Laterotrusive contacts
Curve passing through the buccal and lingual cusp tips of the mandibular buccal teeth is______________?
A. Wilson curve
B. Mansoon curve
C. Curve of spee
D. Caternary curve
While charting the dentition of a child, the pedodontist finds that the following teeth are present in all the four quadrants; permanent central incisor , permanent lateral incisor , decidous cuspid , decidous first molar, decidous 2nd molar and permanent 1st molar. The eruptive pattern may be considered most nearly normal for a child aged_____________?
A. 3-6 years
B. 7-10 years
C. 11-14 years
D. 15- 18 years
Which of the following gives the best description of erupted permanent teeth typically seen in a 9- years old______________?
A. Only molars
B. All teeth except third molars
C. 1,2,4,5,6,7 in all quadrants
D. 1,2,6 in all quadrants
Which of the following do not contribute to arch stability ?
A. Cusps
B. Root forms
C. Embrasures
D. Periodontal fibers
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