FPD

Question 1

When a prep has 0 degree of taper, the restoration has only

Answer 1

one path of dislogement- vertical or occlusal

Question 2

You cannot fabricate a multi-unit FPD without both preps having a

Answer 2

common path of draw

Question 3

Diagnosis of FPD

Answer 3

Identification of pathology by exam and of pt concerns

Question 4

TX planning of FPD

Answer 4

Formulate a logical sequence of tx designed to restore the pts dentition to good health with function and appearance

Question 5

How is retention determined?

Answer 5

• Amt of remaining tooth structure
• Occluso-gingival height (biologic width)

Question 6

How are abutments evaluated?

Answer 6

• Crown to root ratio
• Root configuration
• PDL

Question 7

Optimum crown to root ratio for abutment of a FPD is

Answer 7

2:3

Question 8

Minimum crown to root ratio of an abutment for FPD is

Answer 8

1:1

Question 9

Length of pontic span that can be restored is limited, in part, by ability of the abutment teeth to

Answer 9

accept the additional load

Question 10

What is Ante’s Law?

Answer 10

Root surface area of abutment teeth had to equal or surpass that of the teeth being replaced with pontics

Question 11

Longer spans are

Answer 11

less rigid

Question 12

Bending and deflection varies direclty with

Answer 12

cube of length

Question 13

Bending and deflection varies inversely with the

Answer 13

cube of the occluso-gingival thickness of pontic

Question 14

Increasing length of edentulous span 3x, increases the deflection how much?

Answer 14

27X

Question 15

Increasing the occlusal-gingival width 2X, decreases the deflection by

Answer 15

8X

Question 16

If an abutment tooth has edentulous space on both sides, it is a lone, freestanding

Answer 16

pier abutment

Question 17

Non-rdigid connector tansfers shear stresses to the

Answer 17

supporting bone rather than concentrating it in connectors

Question 18

Using a tilted abutment will cause occlusal forces to

Answer 18

not be directed along the long axis of the tooth

Question 19

What is the ideal solution to tilted molar abutments?

Answer 19

Molar uprighting

Question 20

Wider material means

Answer 20

Less deflection