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.Management Sciences
Category: Oral Anatomy
Which of the following is true of permanent first molar’s occlusal surface_____________?
A. Maxillary molar has 2 major fossa, 2 minor fossa, 4 triangular ridges,1 oblique ridge and 5 grooves
B. Mandibular molar has 1 major fossa, 2 minor fossa, 5 triangular ridges and 4 grooves
C. Rhomboidal shape in maxillary molars and hexagonal shape in Mandibular molars
D. All of the above
The shape of the occlusal surface of the permanent maxillary first molar is_______________________?
A. Oval
B. Trapezoidal
C. Triangular
D. Rhomboidal
Lateral movement of condyle is caused by_____________?
A. Contralateral lateral pterygoid muscle
B. Both lateral and medial pterygoid muscle
C. Epsilateral lateal pterygoid muscle
D. Bilateral contraction of lateral pterygoid muscle
Before eruption the position of permanent mandibular incisor buds relative to primary incisors is_____________?
A. Superior and facial
B. Inferior and facial
C. Superior and lingual
D. Inferior and lingual
In which of the following areas is the alveolar process the thinnest_____________?
A. Lingual to the maxillary central incisors
B. Buccal to the mandibular central incisors
C. Lingual to the maxillary canines
D. Lingual to the mandibular first molar
The incisal edges and the incisal thirds of facial surfaces of mandibular incisors and canines generally oppose lingual surfaces of maxillary incisor and canines _____________?
A. Within the incisor thirds
B. At the junction of middle and cervical thirds
C. At the linguo cervical ridges
D. Immediately incisal to cingulam
Normal dentition in centric occlusion, opposing contact may be expected at_____________?
A. Buccals slopes of buccal cusps of maxillary posterior teeth
B. Buccal slopes of lingual cusps of maxillary posterior teeth
C. Lingual slopes of lingual cusps of mandibular posterior teeth
D. All slopes of lingual cusps of mandibular posterior teeth
On which of the following permanent teeth is it most difficult to distinguish between mesial and distal aspects ?
A. Maxillary central incisor
B. Mandibular central incisor
C. Mandibular lateral incisor
D. Mandibular second premolar
The maxillary lateral incisor is smaller than the maxillary central incisor on all aspects EXCEPT which one of the following______________?
A. Crown length
B. Mesiodistal crown width
C. Faciolingual crown width
D. Root length
The embrasure areas in the following areas are contentious______________?
A. Labial and lingual
B. Lingual and Occlusal
C. Incisal and Occlusal
D. Labial and Occlusal
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