A. Maxillary permanent first molar
B. Mandibular permanent first molar
C. Mandibular permanent second molar
D. Mandibular decidous second molar
✅ The correct answer is option C. Mandibular permanent second molar.
Oral Anatomy
In anxious parent calls you that her 5- month -old child has still no teeth in his mouth then you should_____________?
A. Call and do radiographic survey
B. Tell her that it is normal at this age
C. Child has retarded growth
D. Systemic problem
✅ The correct answer is option B. Tell her that it is normal at this age.
When a molar has no opposing tooth, it can become_______________?
A. Extruded
B. Intruded
C. Protruded
D. Retruded
✅ The correct answer is option A. Extruded.
The shape of the occlusal surface of the permanent maxillary first molar is___________?
A. Oval
B. Trapezoidal
C. Triangular
D. Rhomboidal
✅ The correct answer is option D. Rhomboidal.
The premolar with the occlusal groove pattern that may simulate the letter “Y” is________________?
A. Maxillary first
B. Maxillary second
C. Mandibular second
D. Mandibular first
✅ The correct answer is option C. Mandibular second.
The term diphydont means____________?
A. Second dentition
B. Two same sets of dentition
C. Two separate sets of dentition
D. More than two sets of dentition
✅ The correct answer is option C. Two separate sets of dentition.
The geometric outline of the buccal surface of posterior teeth are_______________?
A. Trapezoidal
B. Rhomboidal
C. Quadrilateral
D. Square
✅ The correct answer is option A. Trapezoidal.
The last primary tooth to be replaced by a permanent tooth is usually the_____________?
A. Maxillary second molar
B. Mandibular second molar
C. Maxillary canine
D. Mandibular canine
✅ The correct answer is option C. Maxillary canine.
Maxillary first molar has how many roots ?
A. 1 facial and 2 lingual
B. 1 lingual and 2 facial
C. 1 mesial and 2 buccal
D. 1 mesial and 1 distal
✅ The correct answer is option B. 1 lingual and 2 facial.
The occlusal surface shape of a 3 cusped mandibular second premolar_________________?
A. Oval
B. Elliptical
C. Square
D. Tetrahedral
✅ The correct answer is option C. Square.