关键词: 牙周基础治疗, 牙周手术治疗, 引导性组织再生术, 植骨术, 骨成形术

Abstract: Periodontitis is one of the most common chronic oral diseases which impairs oral health，function and esthetics. Initial therapy is the essential part of periodontal treatment，but may be insufficient for the inflammation control of moderate and severe periodontitis. Therefore，surgical periodontal therapy may be used to achieve direct and thorough debridement，correct deficiencies or poor morphologies of periodontal hard and soft tissue，and to promote periodontal regeneration in certain cases. This article illustrates a case of periodontitis treated with systematic periodontal therapy，including periodontal initial therapy，guided tissue regeneration combined with bone grafting and flap surgery with osteoplasty to contorl periodontal inflammation，and supportive periodontal therapy was performed regularly. The treatment for the present case achieved satisfactory clinical results，which provides clinical experience for the treatment of moderate and severe periodontitis.

Key words: initial periodontal therapy, surgical periodontal therapy, guided tissue regeneration, bone graft procedure, osteoplasty