DIAN - Denture Design

Question 1

What extra-oral features are key to identify for a denture assessment?

Answer 1

Smile line
Symmetry
Incisal show
Speech
Skeletal pattern
OVD/RVD
FWS
TMJ

Question 2

What intra oral features are key to a denture assessment?

Answer 2

Occlusion
Excersions
Guidance
Saddle and support areas
Tooth status (periodontal, caries)
Overeruption
Prognosis of abutment teeth
Status of existing restorations

Question 3

What are the general treatment options for replacing missing teeth?

Answer 3

Accept and monitor
Denture
Bridge
Implants

Question 4

At what stage of the treatment plan should denture construction begin?

Answer 4

After all other restorative work as been completed, everything needs to be in order before master impressions.

Question 5

What questions would you ask a patient about their current dentures?

Answer 5

Are they happy with the current dentures?
How old are the dentures?
Did the dentures fit initially?
Are they able to eat with the dentures?
What are their main concerns with the dentures?
How many have you had, and which were the best?

Question 6

What features of the soft tissues are you going to consider when assessing a person for a complete denture?

Answer 6

Ridge assessment:
- Height
- Flabby
- Resorbed
- Width (knife edge)

Question 7

What features of the hard tissues are you going to consider when assessing a person for a complete denture?

Answer 7

OVD, RVD, RCP
Harder areas on the ridge

Question 8

How do you test for retention on a patients dentures?

Answer 8

Push on the incisal edges, and look movement on the posterior teeth.

Question 9

How do you check for stability of a patients complete denture?

Answer 9

Press unilaterally on the posterior teeth, and check for movement on the opposing side.

Question 10

How do you check for support of a patients denture?

Answer 10

Press on the occlusal surfaces of the teeth and check if denture sinks or causes discomfort.

Question 11

How do you calculate OVD?

Answer 11

Multiple measurements, then an average with a Willis bite gauge.

Question 12

What factors impact the aesthetics of the denture?

Answer 12

Smile line
Incisal show
Curve of speed
Buccal corridor
Naso-labial angle
Shade and form

Question 13

Which has greater strength for a denture, CoCr or acrylic?

Answer 13

CoCr

Question 14

Which has greater comfort for a denture, CoCr or acrylic?

Answer 14

CoCr:
- Thinner skeleton as it has higher impact strength
- Minimal palatal coverage
- Greater temperature conductivity
- Greater support

Question 15

Which has greater retention for a denture, CoCr or acrylic?

Answer 15

Both good depending on case

• CoCr: Can incorporate many different types of clasps, and has an accurate fit
• Acrylic: Good with appropriate case, dependent on border seal, can also incorporate stainless steel clasps.

Question 16

Which has better construction accuracy for a denture, CoCr or acrylic?

Answer 16

CoCr - the metal prevent warpage during processing.

Question 17

Which has greater cleansability for a denture, CoCr or acrylic?

Answer 17

CoCr, less porous so not as bad as a reservoir for oral microbes.

Question 18

Which can be more easily repaired or added on to, CoCr or acrylic?

Answer 18

Acrylic - more challenging to make repairs and additions to CoCr as requires exposing of framework and soldering.

Question 19

Which has lower cost to the patient, CoCr or acrylic?

Answer 19

Acrylic

Question 20

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