W1 - Flexible Dentures - Abbott

Question 1

How do flexible dentures differ from acrylic and cr-co in terms of retention?

Answer 1

Flexible dentures engage in soft tissue undercuts, whereas others use teeth for retention

Question 2

Advantages of Flexible Dentures (5)

Answer 2

• More comfortable (thin, flexible)
• Less fragile
• More aesthetic
• Doesn’t absorb odours or stains
• Biocompatible (no allergies, as compared to acylic or nickel)

Question 3

Clinical steps of making Flexible dentures

Answer 3

1. Take alginate impressions for study models
2. Construct special tray
3. Take secondary impression in PVS or polyether (use correct adhesive) and make wax rim
4. Take jaw relation (wax rim) and shade of tooth
5. Send to lab to make
6. Try in
7. Recall

Question 4

How do you adjust flexible dentures?

Answer 4

NTI super-fine bur

- Acrylic bur will not trim Valplast material

Question 5

Care instructions for Valplast (3)

Answer 5

1. Soak denture in Val-Clean solution for 10-15 minutes a day or overnight 3x/week
2. Do not use toothbrush or toothpaste - rinse with water after eating
3. Keep Valplast denture in water or in denture cleaner whenever it’s not being worn

Question 6

What are flexible dentures made of?

Answer 6

Thermoplastic nylon resin

Question 7

Commercial names for flexible dentures (3)

Answer 7

1. Valplast
2. Thermosens
3. Flexite