Guiding Planes

Question 1

Guides the prosthesis to be placed & removed from the mouth:

Answer 1

guiding planes

Question 2

Vertically parallel surfaces of abutment teeth oriented so as to contribute to the direction of the path of placement an dislodgment of removable partial dentures:

Answer 2

guiding planes

Question 3

Guiding planes contribute to the ____ of the path of placement & dislodgment of removable partial dentures

Answer 3

direction

Question 4

Do flat surfaces exist on natural teeth?

Answer 4

No everything is rounded so you have undercuts

Question 5

_____ rarely exist naturally & typically always must be created to have the prosthesis fit in the mouth

Answer 5

guiding planes

Question 6

Guiding planes provide for ___ of placement/removal

Answer 6

one path

Question 7

Guiding planes ensure the ___ of the RPD components

Answer 7

intended actions

Question 8

Guiding planes eliminate/decrease:

Answer 8

gross food traps

Question 9

Guiding planes increase the:

Answer 9

frictional component of minor connectors

Question 10

Guiding planes lowers the _____ on ____ surfaces to allow for better positioning of arms.

Answer 10

heigh of contour; proximal surfaces

Question 11

A large undercut adjacent to the proximal surface should be:

Answer 11

reduced in size

Question 12

Reduction of a large undercut adjacent to the proximal surface should be reduced in size and this reduction can be accomplished by:

Answer 12

1. altering the tilt of the cast
2. selective grinding of the enamel surface

Question 13

If you do too much reduction of the guiding plane you may cause:

Answer 13

sensitivity

Question 14

Location of guiding planes include:

1. ___ surfaces of abutment teeth
2. ____ to the long axis of teeth, if possible

Answer 14

proximal surfaces of abutment teeth; parallel to long axis of teeth

Question 15

When creating guiding planes, as length is increased, ___ is increased and ___ is increased

Answer 15

frictional retention; resistance to rotation