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复盖义齿巳被认为有助于改善义齿的稳定和保存牙槽嵴形态。基牙的各种制备方法对覆盖义齿的支持都很有效,但常见有进行性的牙周退变,尤其是未能保持口腔卫生的患者。粘膜下保留牙根对保存牙槽嵴形态似有同样效果,即是口腔卫生差,亦不易有牙周后遗症。近年来,通过动物实验和临床报告,作者认为粘膜下保留未经根管治疗的活髓牙根是复盖义齿基牙处理的一种可选择的方法。本文是对用此法手术处理和修复的患者两年以上的观察分析。作者对10位44～66岁的健康患者(9男,1女)进行了保留活髓牙根的临床研究。
Overdenture has been considered to help improve denture stability and preservation of alveolar ridge morphology. Various methods of preparation of abutments are effective in overdenture support, but progressive periodontal degeneration is common, especially in patients who fail to maintain oral hygiene. Submucosal retention of root on the preservation of alveolar morphology seems to have the same effect, that is, poor oral hygiene, also not easy to have periodontal sequelae. In recent years, through animal experiments and clinical reports, the authors concluded that submucosal preservation of viable root without root canal treatment is an alternative method of overdenture abutment treatment. This article is the use of this method of surgical treatment and repair of patients over two years of observation and analysis. The authors conducted a clinical study of 10 healthy 44- to 66-year-old patients (9 males and 1 female) with preserved pulp roots.