Table 1. Stages of feline periodontal disease [ 1, 5, 7, 9, 10 ].
Stage Clinical features Visual assessment
0 Healthy periodontium Healthy gingival epithelium( pink with no visible plaque or calculus) [ 5 ]
1 Gingivitis Gingivitis and erythema; no attachment loss [ 7 ]
2 Early periodontitis < 25 % attachment loss [ 9 ]
Considerable plaque and calculus accumulation; dental prophylaxis is required to remove dental deposits [ 5 ]
3 Moderate periodontitis 25 – 50 % attachment loss [ 5 ]
Visible gum recession and marked calculus accumulation [ 10 ]
4 Severe periodontitis > 50 % attachment loss; significant calculus accumulation, severe gingival recession and horizontal loss of alveolar bone [ 1 ]
Affected teeth are mobile and loose [ 9 ]
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