8. Reline and Rebase

Question 1

What is the greatest issue with RPDs

Answer 1

Lack of stability

Question 2

Lack of stability is correlated to

Answer 2

• Poor tissue adaptation

- Occlusal scheme (centric and eccentric movements0

Question 3

How do we improve tissue adaptation

Answer 3

Either reline or rebase

Question 4

What is the difference between relining and rebasing

Answer 4

Relining
-Resurfacing the tissue portion (intaglio surface) of the denture base with new material

Rebase
-Replacement of entire denture base with new material

Question 5

Which is done more often reline or rebase

Answer 5

reline (rebase not commonly done)

Question 6

What is a consequence of ridge resorption (loss of ridge support) for the denture? How about for the individual’s facial estehtics?

Answer 6

over-extended flanges, horizontal shift of dentures, abused tissue, change in occlusion (settling of denture) … over-closed (loss of VDO)

Question 7

What patient complaints may suggest they have lost ridge support

Answer 7

• My denture is loose
• I get food under the denture
• My face looks collapsed
• My bite has changed
• I can’t chew foods .

Question 8

Number 1 reason to do a reline over denture remake is

Answer 8

cost

Question 9

Indications for reline

Answer 9

• Poor retention/support/stability
• Excessive over-/underextended flanges
• Fracture of denture base
• Abused tissue (may be sign of fungal infection however)

Question 10

Immediate dentures usually require a reline how long after insertion

Answer 10

within 1 yr of insertion

Question 11

Decision to reline assumes the dentist is happy with what aspects of the denture

Answer 11

teeth position and appearance (more patient) and minimal wear of the teeth
-VDO is correct or can be corrected (with occlusal adjustments)

Question 12

Old dentures typically have a decreased VDO as a result of

Answer 12

• Wear of teeth

- Settling of denture