Relining/rebase A Denture

Question 1

What is a denture re-line?

Answer 1

Adding new base material, to the fitting surface of an existing denture, in quantity sufficient to fill the space which exists between existing denture contour and altered tissue contour

Question 2

What is a denture re-base?

Answer 2

Replacing entire denture base material of existing denture

Question 3

Types of denture re-line?

Answer 3

Temporary

Soft

Permanent

Chairside or lab based

Question 4

When is a temporary reline useful?

Give an example of a temporary reline material

Answer 4

Good for use after an immediate denture has been worn for a while and is grossly ill-fitting

Good after implant surgery has been done

Coe-comfort

Question 5

What is a soft reline useful for?

Any issues?

Answer 5

Useful in those with parafunctional habits
- as causes atrophic ridges

Good in cancer / cleft patients as can act as obturator

Plasticiser in the soft lining leaches, causing discolouration
- deteriorate with time
- harbour microorganisms

Question 6

Give some soft lining materials

Answer 6

Heat and self cured acrylics

Heat and self cured silicones.

Some can be done chairside others cannot

Question 7

What is a permanent reline? When might it be useful?

Answer 7

Reclining of denture with usually hard acrylic
- useful in peripheral seal issues
- correction of errors following Master imps
- good for immediate or post immediate dentures
- prolong lifespan of old dentures patient likes

Question 8

How would a denture rebase occur?

Answer 8

Loose fitting denture - teeth not worn and in good condition

• undercuts removed from existing denture
• wash impression is taken with closed mouth technique - use denture as tray
• this new impression is used to create new denture base

Disinfect and insert