test 2, class 3 composite prep and restoration

Question 1

whats a class 3 again?

Answer 1

caries in proximal contact of anterior teeth, begins at gingival edge of contact area

Question 2

where do the caries usually develope in a class 3?

Answer 2

just gingival to the contact area

Question 3

can you have lingual or labial access?

Answer 3

yes, but always try to stay lingual.

Question 4

what are the general dimensions of the prep?

Answer 4

3mm incisocervically

1. 5mm deep
2. 5mm mesiodistally

Question 5

should we bevel class 3’s?

Answer 5

yes, use a 45 deg. angle

Question 6

at lecom how wide should your bevel be?

Answer 6

.5 mm

Question 7

where should your incical cavosurface be?

Answer 7

just gingival to the contact

Question 8

where should your incical cavosurface be?

Answer 8

just gingival to the contact

Question 9

when in full occlusion, is it ok to have the beveled surface incontact with the opposite arch?

Answer 9

no. we dont want the bevel to occlude with anything.

Question 10

should you use a wedge with the mylar strips?

Answer 10

yes, make sure you have it nice and tight.