Denture Repairs

Question 1

What are the main types of denture breakage?

Answer 1

Midline break

Tooth detached from base

Loss of flange / flange broken

Acrylic saddle detach from Co/Cr base

Clasp fractured or bent

Question 2

Why do dentures fracture?

Answer 2

Impact

Acrylic thin

Work hardening of metal clasps

Parafunction

Deep overbite

Denture processing issue - porosity

Pt not looking after them / improper cleaning

Question 3

What might constitute a ‘simple repair’? How is this done?

Answer 3

Midline fracture of complete denture / fractured into 3 large pieces that can all be located

If ca be located together, disinfect and send to lab for them to repair

Question 4

How might denture be repaired if piece of denture missing? E.g. loss of flange

Answer 4

Impression taken with denture in mouth
- send to lab
- lab repair with new impression

Question 5

How repair denture if acrylic tooth lost from denutre?

Answer 5

• self cure acrylic to rebond if tooth is accounted for
• if tooth not accounted for then shade and mould must be matched to remaining teeth and placed with acrylic

If repeat failure, ask why?

Question 6

How can repaired dentures be made more solid?

Answer 6

Use of strenghteners
- wire mesh
- glass - fibre mesh
- stainless steel wire

Question 7

What dentures may be unrepairable?

Answer 7

Smashed into multiple pieces

Many unaccounted for bits

Extensive wear