The maintenance therapy on periodontal treatment

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  • 歯周治療におけるメインテナンス治療について
  • シシュウ チリョウ ニ オケル メインテナンス チリョウ ニ ツイテ

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Our objective in dentistry is to keep patients’ teeth in the best condition and make them function well over a lifetime. When a population is aging, the signifi cance of periodontal therapy for the maintenance of periodontal tissue of middle-aged and older persons is great. 　Periodontal therapy is broadly classified into an active treatment phase（including initial preparation, periodontal surgery, etc.）and a maintenance therapy phase. The maintenance therapy, in particular, is a treatment phase aimed to maintain the periodontal tissue improved by an active treatment for periodontal patients with a high risk of recurrence. In an aging society, the treatment is very important and the treatment periods involving patients become very long. It has been demonstrated by many reports that maintenance therapy / supportive periodontal therapy raise the survival rate of teeth and, at the same time, are effective in preventing the recurrence of periodontitis. Many studies on the causes of occurrence and risk factors of periodontal disease and its systematic factors have been recognized. However, how periodontitis relapses during a long maintenance period, what factors affect it, and what factors can predict a recurrence among patients who had received periodontal therapy, are barely known. Tooth root fracture and root caries are often recognized during the maintenance therapy/ supportive periodontal therapy, which often cause tooth loss. The causes of recurrence of periodontitis and tooth loss are considered to be involved in the factors of occlusion and plaque control. However, neither local nor systematic factors that affect these causes have been clarified. Therefore, it is considered to be important to clarify the factors which contribute to the prevention of the recurrence of periodontitis and tooth loss. This can be accomplished by examining the oral condition along with the whole body and psychological conditions together with the items of general practice at the time of treatment for patients with periodontal disease during the maintenance therapy period and supportive periodontal therapy period, and investigating and analyzing the relationships between the examination results and factors of the recurrence of periodontitis and tooth loss. The author would like to discuss various investigations conducted on long-term maintenance patients.

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