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Periodontics · single question

Which of the following is NOT included in the initial phase (Phase I) of periodontal treatment?

  1. Oral hygiene instructions
  2. Scaling and root planing
  3. Prophylaxis
  4. Periodontal surgery
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Correct answer: D. Periodontal surgery

Phase I (Etiotropic/Cause-related therapy) of periodontal treatment includes: oral hygiene instructions, supragingival and subgingival debridement (scaling and root planing), caries treatment, occlusal adjustment, and management of systemic factors. Periodontal surgery (Phase II) is only considered AFTER Phase I re-evaluation (4-8 weeks post-SRP) if residual pockets remain. Surgery is never part of initial therapy.
  • A. Incorrect (IS in Phase I). Scaling and root planing is the cornerstone of Phase I periodontal therapy.
  • B. CORRECT. Periodontal surgery is Phase II — it is performed only after Phase I re-evaluation shows residual deep pockets that did not respond to non-surgical treatment.
  • C. Incorrect (IS in Phase I). Supragingival prophylaxis and maintenance cleaning is part of Phase I.
  • D. Incorrect (IS in Phase I). Oral hygiene instructions are the FIRST step in Phase I — patient must learn to control plaque before other treatments.

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