A. Cementum meets enamel
B. Cementum overlaps enamel
C. Cementum does not meet enamel
D. All of the above
Related Mcqs:
- Dentino enamel junction is_________________?
A. Non-scalloped
B. Straight
C. Scalloped and the convexities are directed towards dentin
D. Scalloped and the convexities are directed towards enamel - In adult teeth, the type of dentin present underlying dentin-enamel junction is_______________?
A. Predentin
B. Mantle dentin
C. Interglobular dentin
D. Tertiary dentin - Ratio of diameter of enamel rods in the DEJ to the enamel surface is______________?
A. 1:4
B. 1:1
C. 1:2
D. 2:1 - Temporary structures in enamel organ are (before enamel formation) ?
A. Enamel knot
B. Enamel cord
C. Both A and B
D. Enamel Cuticle - Smooth surface caries is characterized by spread of caries in enamel and dentin as cones. These alignment in enamel and dentin is____________?
A. Base to base
B. Apex to base
C. Apex to apex
D. None of the above - The cementuoenamel junction is approximately at the level at which the root canal becomes_____________?
A. Twisted
B. Curved
C. Pulp chamber
D. Lateral canal - Which of the following is correct about enamel crystals ?
A. Same as dentin crystals
B. Contains organic portion in the center
C. Roughly texagonal in shape
D. Their diameter is about 5 microns in size - Which of the following is located meidal to the third molar at the junction of the maxilla and the horizontal plate of the palatine bone_____________?
A. Posterior nasal spine
B. Mylohyoid line
C. Pterygoid Hamulus
D. Greater palatine foramen - At the CEJ cementum overlaps enamel about____________?
A. 55 to 60%
B. 60 to 65%
C. 65 to 70%
D. 70 to 75% - The dentin adjacent to the dentinoenamel junction is called the______________?
A. Mantle dentin
B. Circumpulpal dentin
C. Predentin
D. Secondary dentin
