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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
oral surgeon
B
periodontits
C
general dentist
D
endodontist
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
putty material
B
light bodied material
C
heavy bodied material
D
ceramic
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
luting cement
B
varnish
C
liner
D
provisiional cement
5) ______ is added to dental amalgam alloy powder to supress oxidation
A
Copper
B
Tin
C
Silver
D
Zinc
6) A matrix must be used to create a wall for which of the following classifiications of tooth restorations?
A
Class I,II,III
B
Class III, IV V
C
Class II, III IV
D
none of these
7) A matrtix band should extend approximately___mm below the gingival margin of the preparation
A
6
B
-2
C
3
D
1
8) Retainer holds the matrix band snudly in position and is most often positioned_____.
A
on the buccal surface of the tooth being restored
B
toward the posteerior of mouth
C
toward the anterior of mouth
D
on the ligual surface of tooth being restored
9) The placement of _____ is an example of enamelbonding
A
sealant
B
calcium hydroxide
C
dental varnish
D
dental base
10) Which of the following is the instrument of choice when positiioning a wooden wedge?
A
amalgam carrier
B
mouth mirror
C
Howe pliers
D
explorer
*select an answer for all questions
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