Treatment Planning for Dentures

Question 1

Define support.

Answer 1

Resistance of vertical movement of a denture towards the ridge.

Question 2

Is support better in the upper or lower jaw/ denture?

Answer 2

Much better in UPPER.

Question 3

What conditions can affects peri-oral opening?

Answer 3

• Systemic lupus erythematosus.
• Collagen lip implants.

Question 4

What is the significance of TMJ disfunction for denture provision?

Answer 4

Affects jaw opening and thus affects the process of registering occlusion.

Question 5

What is the significance of neuromuscular problems for denture provision?

Answer 5

ex. motorneuron disease.

Patients cant control their jaw very well

Question 6

What pathogens (3) cause angular cheilitis? Which patients often have it?

Answer 6

• Candida albicans, beta hemolytic streptococci, staph aureus.
• Seen in patients with very worn dentures (making mouth over-close) OR dry mouth.

Question 7

Why is tooth prognosis important for denture design?

Answer 7

Do not want to clasp a tooth which will soon be lost

Question 8

Which part of the lower arch may require relief during denture provision?

Answer 8

prominent genial tubercles.

Question 9

Define stability.

Answer 9

Ability of a denture to resist displacement by functional stresses. Ex. on CHEWING (patient may stay in place at REST hence has good RETENTION yet moves when the patient EATS or SPEAKS, hence has poor STABILITY).

Question 10

Denture fits well at rest but moves when the patient eats and speaks. What does this mean?

Answer 10

Good retention
Poor stability

Question 11

What is the significance of tremor for denture provision?

Answer 11

Difficult to record occlusion as teeth do not occlude properly.

Question 12

Lower denture support:

Answer 12

• Primary: retromolar pad + buccal shelf.
• Secondary: alveolar ridge.

Question 13

A patient comes in with denture hyperplasia. Cause? Treatment?

Answer 13

• Denture digs into an area of mucosa, causing fibrous tissue formation.
• Take acrylic bur and trim the denture. Ask patient to come back after a few weeks to monitor if the area has resolved.

Question 14

What are index teeth?

Answer 14

Point of contact of opposing teeth in the intercuspal position.

Question 15

Define adaptation

Answer 15

the degree of fit between a prosthesis and supporting structures.

Question 16

What are the 3 major questions we are concerned with when taking a dental history?

Answer 16

• How long ago did they lose teeth?
• Why did they lose teeth (perio vs caries).
• State of their current teeth.

Question 17

What is the significance of dry mouth for denture provision? What can be done to fix this?

Answer 17

Saliva:
- Protects tissues
- Helps with retention

• saliva orthana, saliva replacement gels.

Question 18

What are the 4 common causes of denture stomatitis? Which patients are more predisposed to this?

Answer 18

• Poor denture hygiene.
• Wearing denture overnight.
• Iron deficiency anemia, dry mouth.

Question 19

Define support.

Answer 19

Resistance of vertical movement of a denture towards the ridge

Question 20

What is the significance of dementia for denture provision?

Answer 20

affects ability to consent - must determine capacity.

Question 21

Upper denture support?

Answer 21

• Primary: Hard palate.
• Secondary: Ridge.

Question 22

Define retention.

Answer 22

the resistance to displacement of a denture away from the ridge. Situation at REST.

Question 23

What could be the implication if a patient lost teeth due to perio disease rather than caries?

Answer 23

More atrophy of ridges if they lost teeth due to gum disease than caries.

Question 24

Which 2 parts of the upper arch may require relief during denture provision?

Answer 24

• Incisive papilla.
• Midline suture.