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

Based on SURVIVABILITY:

a. Good
b. Fair: 25% attachment loss, and/or Class I furcation
c. Poor: 50% attachment loss, Class II furcation
d. Questionable: Above 50% loss of attach, Grade 2/3 furcation
e. Hopeless: Inadequate attachment to maintain health, comfort, function

Question 3

What are the clinical prognostic factors

Answer 3

1. Age: better for older patient bec took more time
2. Dx Severity: CAL, More severe if base of pocket close to root apex - apical disease
3. Biofilm Control: primary etiologic factor
4. Patient Compliance and Cooperation

Question 4

What are the systemic prognostic factors?

Answer 4

1. Smoking: True risk FACTOR
2. Genetic: Not clear
3. Diabetic: Risk FACTOR
4. Stress: May alter response to treatment

Question 5

What are the local prognostic factors?

Answer 5

1. Plaque and Calculus
2. Subgingival Restorations
3. Anatomic Factors

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

1. What is treatment based on?
2. Criteria used in diagnosis and classification (staging and grading criteria) are also used in developing prognosis such as: (4 things)

Answer 7

1. Prognosis

a. Pt age
b. Severity of disease
c. Genetic susceptibility
d. Presence of systemic disease (diabetes, smoking etc.)

Question 8

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

Answer 8

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

Keeping a bad tooth–> detrimental to adjacent healthy tooth