Clinical diagnosis of periodontitis requires the presence of
1. bleeding upon probing.
2. loss of periodontal attachment.
3. a periodontal pocket.
4. tooth mobility.

2 explanations

1. 

   margaux

   The 2 most critical parameters for the prognosis of a periodontally involved tooth are attachment loss( MOST CRITICAL) and mobility.

   • 3
2. 

   Rk96

   The question asks for criteria for diagnosis, not prognosis. chronic periodontitis may exist without mobility also.

   • 0

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