Removable Treatment Planning

Question 1

Basics of the removable prosthetic exam:

Answer 1

• existing prosthesis
• tissue condition (previous denture?)
• muscle attachment (frenum)
• interocclusal distance
• interarch distance
• ridge form (class relation, tuberosities?)

Question 2

Which is more likely to “pop” a denture loose: high or low frenal attachment?

Answer 2

high frenal attachment (on the crest)

Question 3

To determine the VDO, have an edentulous patient close until ______.

Answer 3

the ridges are parallel

Question 4

How much separation is necessary between the retromolar pad and opposing arch?

Answer 4

at least 3 mm

Question 5

What is a critical area to check when evaluating for dentures?

Answer 5

lateral to the maxillary tuberosities

Question 6

Describe a “good” tissue condition.

Answer 6

Firm

Pink

Question 7

Describe a “bad” tissue condition.

Answer 7

hyperplastic
erythematous
mobile

Question 8

When planning for an RPD, high buccal frenums would eliminate the possibility for which clasp type?

Answer 8

i-bar

Question 9

What is a tissue condition that is a contraindication for the i-bar clasp?

Answer 9

soft tissue undercut

Question 10

What is interocclusal distance? What is the ideal measurement?

Answer 10

rest position to MIP

ideal = 3 mm

Question 11

What are five types of ridge form?

Answer 11

square
rounded
knife edge
flat
negative

Question 12

What is a “negative ridge form?”

Answer 12

when the ridge is lower than the buccal shelf

-caused by long time wear of ill-fitting denture

Question 13

Describe which areas must be examined on the maxilla.

Answer 13

undercuts
Torus palitinus
Hard palate form
House’s Palatal form

Question 14

What are the various hard palate forms?

Answer 14

flat
v-shaped
rounded
u-shaped

Question 15

Which are good and which are bad palatal forms for dentures?

Answer 15

BAD
-flat
-v-shaped
GOOD
-rounded
-u-shaped

Question 16

Why is a flat palate bad?

Answer 16

decreases retention

Question 17

What is “House’s Palatal Form” classification?

Answer 17

• classes defined by slope-to-hard palate

- influences palatal seal and retention

Question 18

House’s Class I

Answer 18

minimal slope to hard palate

• easiest for patients to handle denture
• allows broad posterior palatal seal

Question 19

House’s ClassII

Answer 19

greater slope to hard palate

• most common
• medium posterior palatal seal

Question 20

House’s Class III

Answer 20

almost 90 degree slope to hard palate

• most difficult for patients
• narrow posterior palatal seal

Question 21

Describe the areas for examination of the mandible.

Answer 21

undercuts
tori
lateral throat form
tongue position

Question 22

Lateral throat form directly influences stability of the _____ denture.

Answer 22

mandibular

Question 23

Lateral throat form is measured between the____, ____ and _____ by placing a mirror head and asking patient to _____.

Answer 23

floor of mouth, tongue, and retromolar pad

stick out their tongue

Question 24

Class I lateral throat form is classified by a depth of _____ mm.

Answer 24

greater than 20 mm (mirror head fits)

Question 25

Class II lateral throat form is classified by a depth of ____ mm.

Answer 25

greater than 10 mm (half the mirror head fits)

Question 26

Class III lateral throat form is classified by a depth of _____ mm.

Answer 26

0 mm (no room for mirror head)

Question 27

Tongue position can be either ____ or _____.

Answer 27

normal

retruded