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Flashcards in 2 Deck (24):
1

Intracoronal/extracoronal

post into the tooth, extracoronal resists displacmeent using components placed on or attached to the external surfaces of the abutment tooth.

2

Clasp type retainer

what we'll be using

3

Clasp assembly parts

Rest
Retentive arm
Reciprocating arm
Guiding plate

4

Rest

supports and prevents from seating too far.

5

Guiding plate

flat interproximal plate to guide in the RPD. Tooth may be flattened a bit.

6

undercut dimension

0.01inch

7

Support provided by

occlusal rest - can also be in cingulum?

8

Retentive arm preferably on

buccal, unless curve of wilson is really pronounced (mand molars)

9

Cingulum rest seat

aesthetic, usually in canines

10

Incisal rest

looks bad, used when cingulum is not practical

11

Cast circumferential clasp best for

kennedy class III arches

12

Embrasure clasps used when

no mod spaces on opposite side of arch, or kennedy class IV.

13

With embrasure clasps, ------------------- are needed to avoid wedging

double rests

14

Passivity

like a watch on your arm, freely moving. Not too much force on teeth.

15

Support

resistance to vertical seating forces.

16

Adequate encirclement

180deg or more

17

Minor connector

connects major connector with other components like rests. Guide plates also provide stabilization

18

Denture base

mesh (less interarch space)
open lattice
nailhead (butt acrylic tooth)

19

------ denture base is most used

open lattice

20

Nailhead benefit

retention gained due to metal projections on the metal surface

21

Acrylic resin joins metal at a butt joint to prevent over

thinning of acrylic. Interal finish lines on tissue side

22

External finish lines

should be sharp, definite, slightly undercut to adhere to resin. Angle should be acute.

23

Internal finish line

formed from margins of the relief wax used over edentulous ridge.

24

If lingual bar, go

all the way back to involved molars if need be.