Prognosis

Question 1

Lang prognosis for:

A tooth with extensive root caries

Answer 1

Doubtful

Question 2

Kwok and canton 2007 prognosis for a tooth with furcation involvement and recurrent periodontal abscess

Answer 2

Questionable

Question 3

Kwok and caton 2007 prognosis for tooth with periapical pathology and horizontal bone loss involving >2/3 of root. Patient has diabetes that cannot be controlled

Answer 3

Unfavourable. Systemic factor cannot be controlled hence periodontal breakdown likely to occur even with comprehensive perio treatment ad maintenance

Question 4

Prognosis (lang + Kwok and caton) for a tooth with vertical root fracture

Answer 4

Irrational to treat (lang)

Hopeless (Kwok and caton)

Question 5

When is prognosis given

Answer 5

Diagnostic (baseline before treatment)

Therapeutic (post treatment )

Question 6

Hirschfield and wasserman 1978 prognosis system

Answer 6

Questionable prognosis factors: 
furcation involvement
persistent deep probing depth despite root planing
extensive alveolar bone loss
marked mobility + deep probing depth

But concluded that questionable prognosis factors not accurate in predicting tooth loss

Question 7

What did Becker et al 1984 conclude about perio prognosis

Answer 7

Prognosis given at baseline only accurate if patient come back for regular maintenance

Lack of perio maintenance/poor patient compliance can influence long term prognosis