Tooth Restorations

Question 1

Types of decay classification 
CL I 
CL II 
CL III 
CL IV
CL V

Answer 1

CL I occlusal surface decay
CL II occlusal + interproximal decay
CL III interproximal decay of anterior teeth
CL IV interproximal + incisal edge anterior teeth
CL V cervical decay

Question 2

The most common isolation method when doing filling or root canal?

a: rubber dam / dental dam
b: isolate
c: cotton rolls

Answer 2

a

Question 3

Which one is not a way of creating proximal wall when doing CL II filling?

a. Tofflemire
b. T-strips
c. Sectional matrix
d. Mylar strip
e. None of above

Answer 3

e

Question 4

Open space between contacts point and gingiva

Answer 4

embrasure

Question 5

Mechanical blending and mixing of mercury and alloy materials?

a: trituration
b. polymerization
c. manipulation

Answer 5

a

Question 6

Electrical shock caused by two different metals materials meeting when biting

Answer 6

Galvanic shock

Question 7

process to pack down restorative material in the prepared area.

Answer 7

condensation

Question 8

A small metal ball that contained in the amalgam capsule to help mix the alloy?

Answer 8

pestle

Question 9

Chemical reaction that give off heat ?
a. endothermic
b. exothermic
c mulling

Answer 9

b

Question 10

Usually blue or red colored strip paper to check the biting after restoration is done

Answer 10

articulating paper

Question 11

Which one is placed inside nerve canal after root canal treatment to facilitate tooth structure build up?

a. post core
b. retention pin
c. build up

Answer 11

a

Question 12

Which one is used to prepare prepared tooth surface more porous?

a. phosphoric acid
b. zinc oxide eugenol
c. EDTA

Answer 12

a. acid etching (phosphoric acid)

Question 13

Which of following is used to allow access to complete cavity preparation?

a. outline form
b. retention form
c. convenience form
d. resistance form

Answer 13

c. convenience form

retention form (undercut of a wall to provide a mechanical lock between material and prep) 
resistance form (tooth prep to make sure restoration material withstand occlusal force)

Question 14

These materials provide thermal isolation and resistance of condensation force when cavity runs close to the pulpal chamber

Answer 14

Base materials (calcium hydroxide or ZOE (zinc oxide eugenol)

Question 15

This material is used to cover the cut edges of tooth and seal against leakage

Answer 15

Varnish

Question 16

Which of following materials is contra-indicated for resin or composite restoration?

a. bonding agent
b. base
c. Varnish

Answer 16

c

Question 17

this instrument looks like a spoon and commonly used to to remove decay from a tooth

a: excavator
b. curette
c. periosteal

Answer 17

a. spoon excabator

Question 18

This process is said to be a mixing mercury with alloy with pestle

a. trituration
b. mulling
c. dissipation

Answer 18

b.

Question 19

what material needs annealing process before placement?

Answer 19

gold foil