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前牙龈下牙折的修复,临床上有不同看法。过去,为使牙折线暴露于龈缘,一种公认的治疗方法是进行龈—骨切除术,但由于龈及骨的切除减少了上皮和结缔组织附着的生物学宽度,最后常导致牙周组织破坏。根据加力助萌原理,用正畸垂直向移动的方法,使牙折线在龈下的牙齿向(牙合)方伸出,是新近报道的一种成功的保存疗法。本文介绍三例用根管加力助萌出联合治疗复杂性牙冠折断病人,并对支持组织结构发生的生物学变化进行了讨论。
Before the subgingival restoration of the gums, clinically different views. In the past, in order to expose the tooth line to the gingival margin, a well-accepted treatment was gingival-osteotomy but due to gingival and bone resections, the biological width of epithelial and connective tissue attachment was reduced, eventually leading to periodontal tissue damage. According to the principle of boosting aids, orthodontics moves perpendicularly so that the tooth line extends in the direction of the subgingival teeth, which is a newly-reported successful preservation therapy. This article describes three cases of root canal plus eruption assisted treatment of complex dental crown fracture patients, and to support the biological changes in the organization of the structure were discussed.