Classification of Perio Revision Questions

Question 1

Stage 1

Answer 1

early/mild
<15% or 2mm interporximal bone loss at worst site
no tooth loss

Question 2

Stage 2

Answer 2

moderate
coronal third of root interporoximal bone loss at worst site
no tooth loss

Question 3

Stage 3

Answer 3

severe
mid third of root interproximal bone loss at worst site
<=4teeth lost

Question 4

Stage 4

Answer 4

very severe
apical third of root interporoximal bone loss at worst site
>= 5 teeth lost

Question 5

What does staging mean

Answer 5

reflects the severity of perio measured by interproximal bone loss and based on % bone loss in relation to root length

Question 6

What is grading

Answer 6

reflects the suscebitlity of the paitent to perio in absence of intervention.
this is done by using the ratio of %bone loss in relation to their age

Question 7

Grade A

Answer 7

slow

<0.5% - non smoker

Question 8

Grade B

Answer 8

moderate

0.5%-1% <=2mm over 5 years

Question 9

Grade C

Answer 9

rapid
>1.0% >=2mm over 5 years
10 cigs

Question 10

Extent

Answer 10

localised - 30% of teeth affected
generlised - >30% of teeth affected
molar incisor pattern

Question 11

Components of a diagnositc statement

Answer 11

Staging
Grading
Extent
Modifying/risk factors
Stability

Question 12

Status

Answer 12

Curretnly stable - BOP,10%, PPD <=4mm, No BOP at 4mm sites
Currently in remission - BOP >10%, PPD<=4mm, No BOP at 4mm sites
Currently unstable - PPD >=5mm or PPD >=4mm and BOP