关键词: 牙周基础治疗, 多学科综合治疗, 重度牙周炎

Abstract: Periodontitis is one of the most common oral diseases adversely affecting patients′oral health as well as its related quality of life. Patients with severe periodontitis are always troubled by tooth mobility，displacement and even tooth loss，of which management will require comprehensive multidisciplinary treatment and take a long time especially companied by malocclusion. With people′s requirements for facial esthetics and life quality increased，the treatment goal of severe periodontitis with malocclusion and dentition defect is not only limited to the recovery of oral health，but also rehabilitation of oral function and smile esthetics with complete dentition. This article displays the multidisciplinary treatment procedures including initial periodontal therapy，orthodontic treatment，and implant therapy of a patient with generalized stage Ⅲ grade C periodontitis who obtained satisfactory clinical outcomes with periodontal health，oral function and esthetics，which is expected to provide clinical experience for comprehensive diagnosis and treatment of complicated cases.

Key words: initial periodontal therapy, multidisciplinary treatment, severe periodontitis