Preparation of the Mouth

Question 1

How long should you wait after oral surgery

Answer 1

6 weeks

Question 2

True or False

Tori may reform, typically due to stress

Answer 2

True

Question 3

True or False

You cannot attach an RPD to an implant

Answer 3

False, you can, but you need special accommodations

Question 4

What can be used to graft hard tissue if bone height if not adequate

Answer 4

autogenous hip bone graft

Question 5

What type of periodontal procedures can be performed prior to RPD treatment

Answer 5

crown elongation
root planing
occlusal adjustment

Question 6

True or False

Wait for periodontal treatment to be complete before RPD treatment

Answer 6

True

Question 7

What kind of endo procedure could be performed prior to RPD treatment

Answer 7

may need a root canal to adjust supra erupted teeth

Question 8

What type of orthodontic procedures can be performed prior to RPD treatment

Answer 8

molar uprighting

minor tooth movement to gain space

Question 9

What are the measurements of the occlusal rests

Answer 9

rounded triangular
1/3 facial-lingual width
1/2 width between cusps
1.5mm deep for metal
floor incline apically towards tooth center

Question 10

What are the measurements of the cingulum rests

Answer 10

inverted V or U
M-D length 2.5-3mm
labiolongual width 2mm
incisoapical depth 1.5mm

Question 11

Which teeth typically contain insufficient enamel thickness regarding a cingulum rest

Answer 11

lower anterior teeth

Question 12

What are the measurements of incisal rests

Answer 12

rounded notch at an incisal angle
2.5mm wide
1.5mm deep
usually used as an indirect retainer
less favorable than cingulum rest

Question 13

What is the order of mouth preparation

Answer 13

guide planes
enamelplasty
rest seats

Question 14

Guide planes should be at least what dimensions

Answer 14

2-3mm in height; between the occlusal 1/3 and 2/3

3-4mm wide in a facial lingual dimension

Question 15

What is the purpose of positioning the height of contour via enamelplasty

Answer 15

positioning the severe line to control the direct retainer (undercut) and the reciprocating arm location

Question 16

What is the technique to fabricate an occlusal rest seat

Answer 16

used a #8 bur to begin
1/2 the depth or 1.5mm in a buccal lingual direction; 1/2 the distance between cusp
length = 1/3 mesial-distal length of tooth
feathered to lingual and buccal with #6 round bur
deepened toward the center to provide an angle less than 90° - using #6 bur

Question 17

What is the technique to fabricate a cingulum rest seat

Answer 17

37 bur held parallel to the lingual surface of the canine

inverted “V” shape
deepest portion in the center, becoming more shallow mesial and distal

Question 18

What is the technique to fabricate an incisal rest

Answer 18

use a parallel sided carbide or diamond

2.5mm MD and 1.5 incisocervially

Question 19

What would the dimensions be for preparing an undercut

Answer 19

4mm mesiodistally

2mm occlusogingivally