Exam 2 Quiz 5 Class V Amalgam

Question 1

Class V lesion location

Answer 1

Gingival 1/3 of the facial or lingual of ant or posts; most common on facials b/c tongue

Question 2

Most common location (facial or lingual) of class V and why

Answer 2

Facial b/c tongue moves things on lingual

Question 3

Indications for a Class V

Answer 3

CAPE A
Caries
Abrasion
Prosthetics
Erosion
Abfraction

Question 4

Always remove class V?

Answer 4

No; if abrasion or erosion only remove if symptomatic and missing too much structure; if only sympt use local anessthetic

Question 5

local anesthetics

Answer 5

Flouride, stontium CL, silver nitrate

Question 6

bruxism

Answer 6

excess grinding or clentioning

Question 7

Walls of a class V

Answer 7

Diverging

Question 8

Depths of Class V

Answer 8

1.25 at occlusal incisal and .75mm at gingival incisal

Question 9

Form of the floor

Answer 9

Flat but following the convexity to conserve the pulp

Question 10

height of class V to gingiva

Answer 10

1.0mm supragingivally

Question 11

isthmus width of class V

Answer 11

1.5mm -2

Question 12

horizontal extension of Class V

Answer 12

in lab not passed lined angles; clinically to extent of caries; finger extension may be needed

Question 13

finger extension

Answer 13

Class V prep extension with two cares with not enough healthy tooth in between

Question 14

Retention form of Class V

Answer 14

All walls diverge so add retention grooves that run perpendicular to axial wall on the occlusal and gingival in the dentin