The many types of gingival enlargement can be classified according to aetiologic factors and pathologic changes as follows:

Hereditary gingival enlargement	● Familial gingival enlargements
Inflammatory enlargement	● Chronic   ● Acute
Drug induced enlargement	● Non inflammatory Fibrotic gingival enlargement is a side effect of: Convulsants- Phenytoin Calcium channel blockers- Nifedipine, Nitrendipine Immunosuppressant drugs- Cyclosporine Tacrolimus is another immunosuppressive, which causes very less gingival overgrowth.
Enlargements associated with systemic diseases	A. Conditioned enlargement ● Pregnancy ● Puberty ● Vitamin C deficiency ● Plasma cell gingivitis ● Non specific conditioned enlargement (granuloma pyogenicum) B. Systemic diseases causing gingival enlargement ● Leukaemia ● Granulomatous disease (Wegeners granulomatosis, Sarcoidosis)
Neoplastic enlargement(gingival tumours)	● Benign tumours of the gingiva ● Malignant tumours of the gingiva
False enlargement	● Underlying osseous lesions ● Underlying dental tissues

 

GINGIVAL ENLARGEMENT	LOCATION
● Chronic inflammatory ● Gingival abscess ● Drug induced ● Pregnancy, puberty	Marginal and interdental gingiva
● Fibrotic ● Idiopathic ● Leukaemic ● Plasma cell gingivitis	Marginal, interdental and attached gingiva

 

THE DEGREE OF GINGIVAL ENLARGEMENT SCORES
Grade 0	No signs of gingival enlargement
Grade I	Enlargement confined to interdental papilla
Grade II	Enlargement involves papilla and marginal gingiva
Grade III	Enlargement covers three quaters or more of crown

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