2017 classification

Question 1

code 0/1/2 with no obvious evidence of interdental recession, and <10% BOP

Answer 1

clinical gingival health

Question 2

code 0/1/2 with no obvious evidence of interdental recession, and 10-30% BOP

Answer 2

localised gingivitis

Question 3

code 0/1/2 with no obvious evidence of interdental recession, and >30% BOP

Answer 3

generalised gingivitis

Question 4

what should also be included in the diagnosis when BPE 2 is present?

Answer 4

a comment on plaque-retentive factors

Question 5

action on BPE 3 with no obvious evidence of interdental recession

Answer 5

appropriate radiographic assessment

initial PD therapy and review in 3m with localised 6PPC in involved sextants

Question 6

after BPE 3 localised 6PPC actions

Answer 6

no pockets ≥4mm and no radiographic evidence of bone loss due to periodontitis
= continue with code 0/1/2 pathway

pockets ≥4mm remain and/or radiographic evidence of bone loss due to periodontitis
= continue with code 4 pathway

Question 7

code 4 and/or obvious evidence of interdental recession actions

Answer 7

appropriate radiographic assessment

full periodontal assessment (inc detailed 6PPC)

Question 8

code 4 and/or obvious evidence of interdental recession, molar-incisor pattern

Answer 8

periodontitis molar-incisor pattern

staging and grading, current disease status and risk factor assessment

Question 9

code 4 and/or obvious evidence of interdental recession, <30% of teeth

Answer 9

localised periodontitis

staging and grading, current disease status and risk factor assessment

Question 10

code 4 and/or obvious evidence of interdental recession, ≥30% of teeth

Answer 10

generalised periodontitis

staging and grading, current disease status and risk factor assessment

Question 11

radiographic assessment

Answer 11

PA or OPT

if not clinically justified or if only BWs available use CAL or bone loss from CEJ

Question 12

Staging

Answer 12

interproximal bone loss

use worst site of bone loss due to periodontitis

Question 13

Stage 1 (early/mild)

Answer 13

<15%

or <2mm attachment loss from CEJ

Question 14

Stage 2 (moderate)

Answer 14

coronal 1/3 of root

Question 15

Stage 3 (severe)

Answer 15

mid 1/3 of root

Question 16

Stage 4 (very severe)

Answer 16

apical 1/3 of root

Question 17

Grading

Answer 17

% bone loss ÷ pt age

use worst site of bone loss due to periodontitis

Question 18

Grade A (slow rate of progression)

Answer 18

<0.5

Question 19

Grade B (moderate rate of progression)

Answer 19

0.5-1.0

Question 20

Grade C (rapid rate of progression)

Answer 20

> 1.0

Question 21

currently stable

Answer 21

BOP <10%
PPD ≤4mm
no BOP at 4mm sites

Question 22

currently in remission

Answer 22

BOP ≥10%
PPD ≤4mm
no BOP at 4mm sites

Question 23

currently unstable

Answer 23

PPD ≥5mm or

PPD ≥4mm and BOP

Question 24

assessment of current periodontitis status

Answer 24

currently stable
currently in remission
currently unstable

Question 25

risk factor assessment

Answer 25

e.g.
smoking inc cigarettes/day
sub-optimally controlled diabetes

Question 26

diagnosis statement

Answer 26

extent - periodontitis - stage - grade - stability - risk factors