[Initial preparation for bridges--periodontal tissues].
D000543:Alveoloplasty; D003829:Denture, Partial; D005893:Gingivoplasty / Q000379:methods; D006801:Humans; D013516:Oral Surgical Procedures, Preprosthetic; D010518:Periodontitis / Q000601:surgery*; D013357:Subgingival Curettage / Q000379:methods