2018 AAP Classification

Question 1

broad category of Gingival Diseases was added to the

classification system

Answer 1

1992

Question 2

International Workshop for classification of Periodontal Diseases
and Conditions—AAP suggests new system

Answer 2

1999

Question 3

system was not based on the age of the patient at time of

presentation, but on clinical, radiographic, and historical data

Answer 3

1999

Question 4

Further Updates in 2015

Answer 4

▪ Defined “healthy but reduced periodontium” ▪ Recommended reinstating age of onset (<25) as
supporting evidence of diagnosis of aggressive perio
▪ Changes in the definitions of “localized” and
“generalized”
▪“teeth” instead of “sites” ▪Patterns of involvement in addition to % of teeth

Question 5

MAJOR Changes

Answer 5

▪Generalized condition does not determine classification
most severely involved area determines classification! ▪No longer “chronic” or “aggressive” perio  have moved to a
staging and grading system that captures rapid disease
progression or risk for rapid progression ▪“biologic width” has been renamed “supracrestal attached tissues” ▪Specific diagnostic criteria have been introduced for categorizing patient conditions

Question 6

Gingivitis Details:
▪BOP now recognized as diagnostic criteria for use rather
than gingival appearance** ▪Gingivitis site vs. gingivitis case
▪Gingivitis case ≥ ___ % BOP score
▪Localized gingivitis case ≥ __% BOP and ≤___% BOP ▪Generalized gingivitis case  >___% BOP

Answer 6

1. 10%
2. 10% 30%
3. 30 %

Question 7

BOP now recognized as ____ ____ for use rather

than gingival appearance**

Answer 7

diagnostic criteria

Question 8

sticky points for gingivitis *****For patients with successfully treated periodontitis,
you can only classify them as gingivitis case (GC) on a
reduced periodontium if BOP positive sites show a depth
_____mm

Answer 8

≤3mm

Question 9

Gingival Case on a reduced periodontium: Subdivided into patients
w/out __ of periodontitis and patients with successfully treated
____

Answer 9

hx

periodontitis

Question 10

The AAP classification label is simply: “systemic diseases or conditions affecting the
supporting tissues” and classification is based on the primary systemic disease and
the appropriate ___ ___

Answer 10

IDC code

Question 11

*****Stage: think ___ Remember: most involved area drives the Stage classification!!!!

Answer 11

severity

Question 12

Grade: think risk of ___ _____

Answer 12

rapid progression