Lecture 9

Question 1

What is periodontitis?

Answer 1

Bacterial infection resulting in inflammation in the supporting structures of the teeth resulting in destruction of the alveolar bone around the teeth and periodontal ligament

Question 2

What are the three component of a case definition system of periodontitis?

Answer 2

Identification of patient as a perio case

Identification of type of perio case

Description of clinical presentation: elements affecting clinical management and prognosis and elements with broader influences on both oral and systemic health

Question 3

Staging of periodontitis

Answer 3

Stage 1: Initial
Stage 2: Moderate
Stage 3: Severe
Stage 4: Severe

Extent: generalized, localized, molar-incisor pattern

Question 4

Grading criteria of perio

Answer 4

Grade A: slow rate
Grade B: moderate rate
Grade C: Rapid rate

Question 5

How to define a perio case

Answer 5

1. Interdental CAL >3 on two non-adjacent teeth
2. Lingual or Buccal CAL >3 with probing depths >3 on >2 teeth but CAL can not be due to recession, cervical caries, distal of second molar when third molar is removed or impacted, endodontic lesion draining into marginal periodontal, vertical root fracture

Question 6

What factors makes each periodontal case different?

Answer 6

Age
Number of lesions
Distribution
Severity
Location in the dental arch
Level of Plaque contamination

Question 7

When is staging determined?

Answer 7

At presentation

Question 8

What are the elements of staging?

Answer 8

Severity
Complexity of management
Extent and distribution

Question 9

What are the three elements of severity?

Answer 9

Interdental CAL
RBL
Tooth loss