A. Enamel rods at cervical region directed occlusally
B. Results in constriction at cervical region
C. Is characteristic of decidous teeth
D. All of the above
Related Mcqs:
- The crowns and roots of primary molar at their cervical portions are more____________?
A. Slender mesiodistally
B. Slender anteroposteriorly
C. Bulkier mesiodistally
D. Buliker anteroposteriorly - Which teeth show less curvature on the crown above the cervical line than any other teeth_____________?
A. Maxillary anterior
B. Mandibular canine
C. Mandibular anteriors
D. Maxillary canine - The curvature of the cervical line of most teeth will be approximately____________?
A. 2 mm less distally than mesially
B. 1 mm less distally than mesially
C. 2 mm less lingually than buccally
D. 1 mm less lingually than buccally - Which of the following premolars has a mesial marginal ridge more cervical than the distal marginal ridge________________?
A. Maxillary 1st premolar
B. Maxillary 2ndpremolar
C. Mandibular 1st premolar
D. Mandibular 2nd premolar - Cervical cross section of maxillary first premolar is_____________?
A. Dumbell
B. Kidney shape
C. Elliptical
D. Oval - Which bifurcation is closet to the cervical line (or) which surface has short root trunk length in a maxillary permanent first molar ?
A. Buccal
B. Mesial
C. Distal
D. None of the above - The typical cervical differs from thoracic vertebra in that it______________?
A. Has a triangular body
B. Has a foramen transversarium
C. Superior articular fact directed backwards and upwards
D. Has a large vertebral body - All of the following are supplied by the ansa cervical is except_____________?
A. Sternohyoid
B. Omohyoid
C. Stenothyroid
D. Thyrohyoid - Enamel rods at the cervical area at the occlusal edge and incisal lip in permanent teeth are______________?
A. Straight
B. Shallow
C. Bent
D. Curved - When Gold fused with porcelain is fired at very high temperature greenish discoloration of cervical margin is due to________________?
A. High firing temperature
B. Disintegration of opaque layer
C. Presence of copper
D. Formation of excess oxides
