PER02-2006 Epidemiology & classification of periodontal disease

Question 1

What is epidemiology?

Answer 1

Study of distribution of a disease or a physiological condition in human populations

Question 2

What is incidence?

Answer 2

Number of new cases per year

Question 3

What is prevalence?

Answer 3

The total number of cases

Question 4

What is BPE?

Answer 4

A screening tool to reach a provisional diagnosis

Question 5

How many sections is the dentition divided into?

Answer 5

6

Question 6

Which BPE codes mean health?

Answer 6

0

Question 7

Which BPE codes indicate gingivitis?

Answer 7

1 and 2

Question 8

Which BPE codes indicate periodontitis?

Answer 8

3 or 4

Question 9

What indicates a BPE score of 0, 1 or 2?

Answer 9

Bleeding on probing

Question 10

What action needs to be done if there is a BPE score of 3 or 4?

Answer 10

Take radiographs and record pocket chart

Question 11

What are the features of intact periodontium?

Answer 11

No probing attachment loss
Probing pocket depths are less than 3mm
Less than 10% of sites bleed on probing
No radiographic bone loss

Question 12

What are the features of reduced periodontium?

Answer 12

Evidence of probing attachment loss
Probing pocket depths are less than 4mm
Bleeding on probing at less than 10% of sites
Signs of radiographic bone loss

Question 13

What are the features of plaque induced gingivitis?

Answer 13

Less than 10% of sites are bleeding on probing

Probing pocket depths are greater than 4mm

Question 14

What does staging represent?

Answer 14

Severity

The percentage of bone loss in relation to the root length

Question 15

What does grading represented

Answer 15

Rate of progression

The ratio of % bone loss over age

Question 16

What is the difference between a code 3 and 4 during the BPE?

Answer 16

The black band is partially observed for code 3

Black band is fully covered for code 4