Determination of Prognosis

Question 1

What is prognosis

Answer 1

Prediction of course and duration of disease based on pathogenesis

Question 2

Describe the McGuire classification of prognosis

Answer 2

Good: Aetiology controlled, good perio support

Fair: 25% attach loss, grade I furcation

Poor: 50% attach loss, Grade II furcation

Questionable: Above 50% loss of attach, Grade 2/3 furcation

Question 3

What are the clinical prognostic factors

Answer 3

1. Age: Older pt
2. Dx Severity: CAL, Apex bone loss
3. Biofilm Control: Main cause, must control
4. Pt Comfort: Pt must comply

Question 4

What are the systemic prognostic factors

Answer 4

1. Smoking: True risk factor
2. Genetic: Not clear
3. Diabetic
4. Stress: Effects ability to respond

Question 5

What are the local prognostic factors

Answer 5

1. Biofilm
2. Calculus
3. Subgingival Restoration

Question 6

What are the anatomical prognostic factors

There are 12

Answer 6

1. Root Length
2. CEP
3. Enamel Pearl
4. Root Concavity
5. Developmental groove
6. Root Proximity
7. Furcation
8. Tooth mobility
9. Caries
10. Vitality
11. Root Resorption

Question 7

What is treatment based on

Answer 7

Prognosis

Question 8

What is the effect of the prognosis of a tooth on the adjacent teeth

Answer 8

Machtei: mean bone loss next to a retained tooth was x10 times higher