Prosthodontics L2 - why full dentures

Question 1

what is a complete denture

Answer 1

A removable dental prosthesis that replaces the entire dentition and associated structures of the maxillae and/or mandible

Question 2

what are the vast majority of complete dentures made of

Answer 2

PMMA

Question 3

there are two tyoes of complete dentures what are they

Answer 3

replica dentures and conventional dentures

Question 4

what is a replica complete denture

Answer 4

a replica complete denture is a denture made from the positives taken from the pateints previous denture

Question 5

what is a conventional complete denture

Answer 5

this is the production of a new denture from complete scratch

Question 6

there are not many negatives for complete dentures, although it is still a foreign body , what condition can you expect to see?

Answer 6

oral mucosal conditions

Question 7

what are the main issues with full dentures

Answer 7

the main issues are denture retension (staying the mouth) and denture stability (carrying out functions)

Question 8

why is it usually the lower full denture struggles with stability and retention compareed to the upper full dentures

Answer 8

the upper denture sits on the palate which is hard for tissue, whereas as the lower full denture sits on the lower residual ridge (doesnt offer as much stability and retention)

also there is the tongue which is mobile, and as the tongue moves, the denture potentially can lift up.

Question 9

what makes the lower right cast, very difficult to make a lower full denture

Answer 9

the lower right cast shows minimal presence of residual ridge present

Question 10

denture stomatits can be caused by poor practice such as …………..

Answer 10

wearing of denture full time

not being cleaned properly

Question 11

name this condition and why it is caused

Answer 11

denture hyperplasia

the denture digs in and becomes chronically inflamed, which results in a growth of fibrous tissue.

Question 12

if a patient is using denture fixative, what is that indicating

Answer 12

that the patients dentures are inadequate

Question 13

during the first clinical stage: primary impressions are taken, these are taken by stock trays. however these trays are unique, what makes them unique

Answer 13

these stock trays are edentuolus stock trays

Question 14

what would be done in the 1st laboratory stage

Answer 14

primary casts and special trays

Question 15

during the clinical stage 2 what impression are taken

Answer 15

master impressions

Question 16

during laboratory stage 2? what is being made

Answer 16

master cast with record blocks

Question 17

during the clinical stage 3 what must you do with the dentures with the patients

Answer 17

you must do a jaw registration (occlusion)

Question 18

whats the difference between the replica and conventional dentures in terms laboratory and clinical stages

Answer 18

replica has one less because the master impressions and occlusion is done at the same visit.