From: A longitudinal assessment of periodontal disease in Yorkshire terriers
AVDC Stagea | Periodontal Probing Depth | Gingival Recession | Furcation Exposure |
---|---|---|---|
Stage 2 (PD2) Early periodontitis (< 25% attachment loss) | ≥2 mm (≥2.5 mm on canine teeth) | > 0 mm | Stage 1; feel an indentation between the roots and the probe may advance 1 mm. |
Stage 3 (PD3) Moderate periodontitis (25–50% attachment loss) | ≥4 mm (≥5 mm on canine teeth) | ≥2 mm (≥3 mm on canine teeth) | Stage 2; obvious indentation between the roots and probe advances 50%. |
Stage 4 (PD4) Advanced periodontitis (> 50% attachment loss) | ≥8 mm (≥10 mm on canine teeth) | ≥4 mm (≥6 mm on canine teeth) | Stage 3; obvious space between the roots and probe advances 100%. |