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DENTAL MATERIALS
Test Description: DA 204
Instructions: Answer all questions to get your test result.
1) Operative dentistry is the primary responsibility of the ______.
A
endodontist
B
periodontits
C
oral surgeon
D
general dentist
2) The usual material of choice for Class III and Class IV restorations is _____.
A
ceramic
B
composite resin
C
glass ionomer
D
amalgam
3) Which type of elastomeric material has the highest vicoscity?
A
heavy bodied material
B
ceramic
C
putty material
D
light bodied material
4) ____ is classified as a type I dental cement and acts as an adhesive to hold together the indirect restoration and the tooth surface
A
varnish
B
liner
C
luting cement
D
provisiional cement
5) ______ is added to dental amalgam alloy powder to supress oxidation
A
Copper
B
Silver
C
Tin
D
Zinc
6) A matrix must be used to create a wall for which of the following classifiications of tooth restorations?
A
Class III, IV V
B
Class I,II,III
C
none of these
D
Class II, III IV
7) A matrtix band should extend approximately___mm below the gingival margin of the preparation
A
1
B
-2
C
3
D
6
8) Retainer holds the matrix band snudly in position and is most often positioned_____.
A
on the ligual surface of tooth being restored
B
toward the anterior of mouth
C
on the buccal surface of the tooth being restored
D
toward the posteerior of mouth
9) The placement of _____ is an example of enamelbonding
A
calcium hydroxide
B
dental base
C
sealant
D
dental varnish
10) Which of the following is the instrument of choice when positiioning a wooden wedge?
A
mouth mirror
B
amalgam carrier
C
Howe pliers
D
explorer
*select an answer for all questions
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