Perio Classification

Question 1

3 definitions of periodontal health

Answer 1

1. ptx with intact periodontium
2. ptx with reduced periodontium due to causes other than periodontitis
3. ptx with reduced periodontium due to periodontitis

Question 2

clinical signs of intact periodontium

Answer 2

absence of:
BoP, erythema, oedema, patient symptoms, attachment and bone loss

Question 3

how to define intact / reduced & stable periodontium

Answer 3

gingival health defined as <10% bleeding sites
probing depths <3mm

Question 4

3 causes of plaque induced gingivitis

Answer 4

associated with biofilm alone
mediated by systemic / local risk factors
drug influenced gingival enlargement

Question 5

what is an emergence profile

Answer 5

the shape a restoration takes as it emerges from the gingival margin

Question 6

what drugs can cause drug induced gingival enlargement

Answer 6

amlodipine, calcium channel blockers, cyclosporin, immunosuppressants

Question 7

non dental biofilm induced gingival diseases

Answer 7

• genetic / developmental disorders e.g. hereditary gingival fibromatosis
• specific infections e.g. herpetic gingival stomatitis, candida albicans
• inflammatory & immune conditions e.g. lichen planus, benign mucous membrane pemphigoid
• reactive processes
• neoplasms
• endocrine / nutritional / metabolic diseases e.g. vit C deficiency
• traumatic lesions
• gingival pigmentation

Question 8

necrotising gingivitis signs & symptoms

Answer 8

necrosis and ulcer in interdental papilla
gingival bleeding
pain
pseudomembrane formation
halitosis
regional lymphadenopathy

Question 9

necrotising periodontitis signs & symptoms

Answer 9

same as NG but also
periodontal attachment and bone destruction
frequent extra oral signs
in severely immunocompromised patients bone sequestrum may occur

Question 10

necrotising stomatitis

Answer 10

bone denudation extended through the alveolar mucosa
larger areas of osteitis and bone sequestrum

Question 11

causes of NPD

Answer 11

HIV / AIDS, immunosuppression, severe malnourishment, stress, smoking, previous NPD, severe viral infections

Question 12

is NG reversible

Answer 12

can be reversible but will end up with loss of interdental papilla

Question 13

is NP reversible

Answer 13

no as bone loss is irreversible

Question 14

periodontitis as a manifestation of systemic disease

Answer 14

• papillion lefevre syndrome
• leucocyte adhesion deficiency
• down’s syndrome
  -hypophosphatasia

Question 15

systemic diseases affecting periodontal tissues

Answer 15

squamous cell carcinoma
langerhans cell histiocytosis

Question 16

recession type 1 RT1

Answer 16

gingival recession with no loss of interproximal attachment

Question 17

recession type 2 RT2

Answer 17

gingival recession associated with loss of interproximal attachment. amount of IP attachment loss is less than or equal to buccal attachment loss

Question 18

recession type 3 RT3

Answer 18

gingival recession associated with loss of IP attachment. amount of IP loss is more than buccal attachment loss