Week 1- Flexible Dentures

Question 1

Where do you get retention from with flexible dentures?

Answer 1

Soft tissue undercuts (acrylic & cr-co dentures use teeth for retention)

Question 2

What are the commercial names for flexible dentures? (3)

Answer 2

• Valplast
• Thermosens
• Flexite

Question 3

What are flexible dentures made out of?

Answer 3

Thin, flexible, thermoplastic nylon resin

Question 4

What are benefits of flexible dentures?

Answer 4

• Material doesn’t absorb stains/odours
• Good choice if pt is allergic to acrylic or metals
• Better aesthetics
• Comfortable

Question 5

What are the clinical steps for flexible dentures?

Answer 5

1. Take alginate impressions to get study models & determine which soft tissue undercuts can be utilised
2. Construct special tray
3. Take a secondary impression in PVS or Polyether impression material- use appropriate adhesive!
4. Take a jaw relation and shade of tooth
5. Send to lab
6. Try in
7. Finish
8. Recall

Question 6

How can you adjust flexible dentures?

Answer 6

Use special bur OR
Place denture in freezer and leave for 20-30 minutes and then adjust with normal acrylic bur

Question 7

How should flexible dentures be cleaned?

Answer 7

• Soak in Val‐Clean for 10‐15 minutes a day, or overnight at least 3x/week.
• Rinse your Valplast Flexible Denture after eating to remove any food particles.
• Keep the partial in water or in denture cleaner whenever it is not being worn to keep the surface hydrated.

Question 8

Can store bought denture cleaner be used for flexible dentures?

Answer 8

No, they may contain ingredients that can damage the Valplast or its colour