Dentistry

Periodontal Risk Assessment (PRA Hexagonal Model)

Evaluates patient multi-factorial periodontal disease recurrence risk and recall intervals (Lang & Tonetti).

Parameters

Periodontal Risk Assessment (PRA Hexagonal Model) Result

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FormulaPRA risk vectors calculated across 6 functional parameters: BOP %, Pockets ≥5mm, Tooth loss, BL/Age ratio, Systemic condition, and Smoking.

Clinical Pearls

Empirically proven to predict long-term tooth loss and guide customized periodontal maintenance visit intervals.

Limitations

Assumes patient compliance with oral hygiene instruction; does not replace surgical re-evaluation when indicated.