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Stages of Periodontal Disease

Periodontal Disease Classification

The degree of severity of periodontal disease relates to a single tooth; a patient may have teeth that have different stages of periodontal disease.

Normal (PD 0): Clinically normal – no gingival inflammation or periodontitis clinically evident.

Stage 1 (PD 1): Gingivitis only without attachment loss. The height and architecture of the alveolar margin are normal.

Stage 2 (PD 2): Early periodontitis – less than 25% of attachment loss or at most, there is a stage 1 furcation involvement in multirooted teeth. There are early radiologic signs of periodontitis. The loss of periodontal attachment is less than 25% as measured either by probing of the clinical attachment level, or radiographic determination of the distance of the alveolar margin from the cemento-enamel junction relative to the length of the root.

Stage 3 (PD 3): Moderate periodontitis – 25-50% of attachment loss as measured either by probing of the clinical attachment level, radiographic determination of the distance of the alveolar margin from the cemento-enamel junction relative to the length of the root, or there is a stage 2 furcation involvement in multirooted teeth.

Stage 4 (PD 4): Advanced periodontitis – more than 50% of attachment loss as measured either by probing of the clinical attachment level, or radiographic determination of the distance of the alveolar margin from the cemento-enamel junction relative to the length of the root, or there is a stage 3 furcation involvement in multirooted teeth.

Reference: Wolf HF, Rateitschak EM, Rateitschak KH et al. Color atlas of dental medicine: periodontology, 3rd ed. Stuttgart: Georg Thieme Verlag, 2005.

OraStrip QuickCheck Canine, in conjunction with visual clinical exams, is a powerful device for detecting and monitoring periodontal infection.

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