Materials

Question 1

What are the properties of chrome dentures?

Answer 1

• More expensive (casting fee)
• Strong
• Clasps keep shape longer than acrylic
• More difficult to add teeth to (restricted by the framework, e.g. clasps are cast onto metal frame and can’t move around, so can not add teeth to clasp areas. Also if framework does not extend to certain areas, teeth can not be added there. However, if there is an area of framework free and no clasps or rests, then it is just as easy as adding to acrylic)
• Harbours less plaque
• Conducts hot and cold

Question 2

What are the properties of acrylic dentures?

Answer 2

• Cheaper
• Not as strong
• Clasps may not last as long
• Easier to add teeth to
• Better wetting
• Harbours more plaque

Question 3

What clasps can be used for acrylic dentures?

Answer 3

-Stainless steel or gold

Question 4

How can extra teeth be added to acrylic dentures?

Answer 4

• Take alginate impression over the top of existing partial denture
• Ask laboratory to add on tooth as immediate addition
• May need to ask lab to shift clasp

Question 5

What clasps are used for chrome dentures?

Answer 5

Chromium/cobalt

-Can be adjusted but not too often (else cause work hardening)