Lec 9 Nonrigid Connectors

Question 1

Is indicated, either to relieve stress or to accommodate poorly aligned fixed partial denture abutments

Answer 1

Nonrigid connectors

Question 2

• To align the path of insertion of the keyway with that of the distal abutment.
• This technique is best suited for relieving stress at midspan on long pontics.

Answer 2

Dovetail (key-keyways)

Question 3

An attachment that is placed entirely within the pontic.

It is particularly useful in tilted abutment cases, where the use of a conventional dovetail would necessitate the preparation of a very drastic box in the distal aspect of the pier abutment

Answer 3

Split pontic

Question 4

These are the working elements of a two-piece pontic system that allows the two segments to be rigidly fixed after the retainers have been cemented on their respective abutment preparations.

Answer 4

Cross-pin and wing

Question 5

The design is used primarily to accommodate abutment teeth with disparate long axes. The path of insertion of each tooth preparation is made to parallel the long axis of that tooth.

Answer 5

Cross-pin and wing

Question 6

This technique requires no special patterns and allows for a completely rigid prosthesis when completed

Answer 6

Cross-pin and wing