Full removable dentures. Elements of full denture. Principles of retention and stabilization

Question 1

Function of removable dentures

Answer 1

• Replacement of natural teeth

- Restore aesthetics, mastication and speech

Question 2

Surfaces of full denture

Answer 2

• Intaglio (impression surface-contacts tissues)
• Cameo surface (polish surface)
• Occlusal surface

Question 3

Describe the intaglio surface

Answer 3

Surface in contact with tissues

Question 4

Describe the cameo surface

Answer 4

External surface of denture(lingual, buccal and labial flanges, external palatal surface)

Question 5

What are the elements of the full denture

Answer 5

Denture base
Denture flange
Denture borders
Denture teeth

Question 6

What is the function of the denture base?

Answer 6

Retention and support

Rests on mucosa

Question 7

What is the denture flange?

Answer 7

Vertical extensions of denture base

Question 8

What is the junction between the intaglio and cameo surface?

Answer 8

Denture border

Question 9

Retention of denture is

Answer 9

• Its ability of denture to resist displacement

- Results from border seal

Question 10

Physical forces of retention

Answer 10

• Adhesion
• Cohesion
• Interfacial surface tension(film or liquid between two surfaces)
• Undercuts
• Gravity

Question 11

Stability is

Answer 11

The ability of prosthesis to resist displacement by horizontal or rotational forces

Question 12

Stability in the denture is created by

Answer 12

• Teeth over central portion of alveolar ridge
• Non antagonistic contacts between mandibular and maxillary teeth during lateral and protrusive movements
• Teeth in neutral zone

Question 13

Effect of bone resorption on mandible and maxilla

Answer 13

Mandible= Wider
Maxilla= Smaller