Reasons to Render Patient Edentulous

Question 1

6 reasons FOR rendering a patient edentulous.

Answer 1

• Caries.
• Periodontal Disease
• Appearance
• Malocclusion
• Overload of opposing jaw, especially edentulous lower.
• Patient’s request.

Question 2

4 reasons AGAINST rendering a patient edentulous.

Answer 2

• Masticatory efficiency reduced.
• Alveolar resorption.
• Muscular skills required to manage F/F (special difficulty in the elderly).
• Medical conditions.

Question 3

What is an alternative to edentulousness?

Answer 3

Overdentures.

Question 4

What are the requirements for overdentures (5)?

Answer 4

Roots must be :
- caries free.
- Have good periodontal support.
- usually require endo treatment.
- restorable.
- should allow patient to maintain good OH level.

Question 5

2 advantages of overdentures.

Answer 5

Preserve alveolar bone + retain proprioception.

Question 6

2 things that make older people more prone to caries.

Answer 6

• Older people experience gingival recession and thus increased prevalence of root caries.
• Older people take medication that reduces salivary flow, thus increases caries prevalence.

Question 7

3 tooth movements that can lead to severe malocclusion

Answer 7

Drifting, tilting, overeruption.

Question 8

What is meant by overloading the opposing jaw as an indication for rendering a patient edentulous? (what does it cause).

Answer 8

Especially in LOWER EDENTULOUS.

Overloading of lower denture leads to INSTABILITY and issues with PAIN/ DISCOMFORT with the lower denture.

Question 9

Who makes the crown?

Answer 9

Lab technicians.

1. prepare the tooth.
2. take impressions
3. cast in stone and ARTICULATE.

Question 10

3 benefits of making a crown extra-orally in the lab?

Answer 10

• Occlusal pattern on the crown can be made to conform to the existing occlusion or to a reorganised occlusion.
• Can take into account guidance in excursive movements.
• Can be made with idea contact points and appropriate contour.