A. 4 months in utere
B. Birth
C. 4 months after birth
D. One year after birth
✅ The correct answer is option A. 4 months in utere.
Oral Anatomy
How many pulpal horns are there in the mandibular second primary molar ?
A. 3
B. 6
C. 4
D. 5
✅ The correct answer is option D. 5.
Which line angle area is most acute when a permanent maxillary second molar is viewed occlusally ?
A. Mesiofacial
B. Distofacial
C. Mesiolingual
D. Distolingual
✅ The correct answer is option A. Mesiofacial.
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
✅ The correct answer is option C. Junction of the middle and cedrvical thirds.
The primary centre of formation of each lobe is present in_____________?
A. Apex of the root
B. Tip of the cusp
C. Centre of the crown
D. Centre of the tooth
✅ The correct answer is option B. Tip of the cusp.
The lingual cusp of lower first premolar is compared to the development of____________?
A. Cusp of carabelli
B. Distolingual cusp of molars
C. Lingual cusp of second premolar
D. Cingulam of canine
✅ The correct answer is option D. Cingulam of canine.
Steepest cusp is seen in_______________?
A. Maxillary 1st premolar
B. Maxillary 1st molar
C. Mandibular 2nd molar
D. Mandibular 1st molar
✅ The correct answer is option A. Maxillary 1st premolar.
Upper 4 resembles 5 from which aspect ?
A. Buccally
B. Lingually
C. Occlusal
D. Proximally
✅ The correct answer is option A. Buccally.
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
✅ The correct answer is option D. 9 months after birth.
The shortest root on a maxillary first molar is_____________?
A. Mesio- buccal
B. Disto – buccal
C. Lingual
D. All are of equal length
✅ The correct answer is option B. Disto – buccal.