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临床上用常规的方法拔除根端肥大、根周粘连或弯曲的断根时,往往很难取出。几年来笔者采用增隙法拔除难度较大的断根,效果颇感满意,现介绍如下。增隙法是采用一种增隙器,以扩大断根与牙槽骨壁之间的间隙,从而有消除牙槽骨阻挡的作用。我们应用的增隙器,有的是专门加工的,有的是用报废的直根尖挺改制而成。其刃缘很薄,向柄端渐变厚,刃口宽度为1～1.2mm(图1)。使用方法是
Clinically with the conventional method of removing the root hypertrophy, root week adhesion or bending of the root, it is often difficult to remove. Over the past few years I use the Gap method to remove the more difficult to cut the root, quite satisfied with the results, are presented below. Gap method is the use of an increase of device to expand the root of the gap between the alveolar bone wall and thus have the role of eliminating alveolar bone block. We use the gap filler, some are specialized processing, and some are scrapped straight root restructuring. Its edge is very thin, gradual thickening of the handle, cutting edge width of 1 ~ 1.2mm (Figure 1). Use method is