Kwok and Caton classification (Periodontal prognosis)

Periodontal prognosis can be:

  • Favorable
    • The periodontal status of tooth can be stabilized with comprehensive periodontal treatment and periodontal maintenance.
  • Questionable
    • The periodontal status of tooth is influenced by local and/or systemic factors that may or may not be controlled.
  • Unfavorable
    • The periodontal status of tooth is influenced by local and/or systemic factors that cannot be controlled.
  • Hopeless
    • The tooth must be extracted