ENDODONTIC POSTS

Pulpless teeth have _____ less moisture than vital teeth.

• 11%

• 9%

• 21%

• 5%

Minimum thickness of ferrule required?

• 1 mm

• 2 mm

• 3 mm

• 4 mm

The loss of what contributes to the greatest loss of tooth strength?

• Cusp

• Marginal ridge

• Fissures

• Groove

Minimum width of biological width to be maintained

• 1 mm

• 2 mm

• 3 mm

• 4 mm

Minimum height of ferrule recommended

• 1 mm

• 3 mm

• 1.5 - 2 mm

• 2.5 - 3 mm

A post is indicated when there is tooth structure loss of more than

• 30%

• 40%

• 50%

• 60%

Amalgam core extending to pulp chamber and 2-3 mm into the root canals is known as

• Nayyar's core

• Coronal-Radicular restoration

• Both of the above

• None of the above

Minimum length of apical GP to be preserved for apical seal

• 1-2 mm

• 2-3 mm

• 3-5 mm

• 5-6 mm

Identify the instrument.

• GG Drills

• Hyflex

• Flex R

• Peeso reamers

What force(s) are premolars subjected to?

• Compressive

• Shear

• Both of the above

• None of the above