Maxillary Class II Preps (Indirect Vision)

Question 1

Which walls will be used to hold retention on the occlusal surface of an upper molar cavity prep?

Answer 1

Buccal and lingual walls will converge

Question 2

What other main feature will be used to hold retention?

Answer 2

The dovetail outline

Question 3

What amount of clearance do you want for your buccal embrasure?

Answer 3

.3mm

Question 4

When do we drill into the oblique ridge?
1.
2.

Answer 4

1. If there is undermined enamel

2. If there is less than .5mm of tooth structure between two prepped areas

Question 5

For gingival clearance what measurement is considered ideal?

Answer 5

.5mm

Question 6

What can we do to conserve the mesiobuccal triangular ridge?

Answer 6

Make a reverse S shaped buccal wall

Question 7

Seating position for maxillary occlusal preps?

Answer 7

10pm - midnight

Question 8

Patient position for maxillary arch

Answer 8

Supine