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准确测量根管长度,对于保证根管治疗术的成功至关重要。测量根管长度的方法有三种:1、手感法;2、x线片法;3、电测法。目前日本已有多种型号的根管长度电测仪在临床应用,西方一些国家也在推广应用,从而使电测法在日本及西方国家成为一种主要方法。近年来我国黄力子等对根管长度电测法的原理作了独特的阐述,并研制成三种根管长度电测仪,张世国等也研制成功KZC—3型口腔阻抗测定仪,其功能之一是直接利用阻抗测量的读数测定根管长度。1975年Seidberg报道:手感法的准确度较电测法高。近年我国赵皿等和
Accurately measuring the length of the root canal is crucial to the success of root canal therapy. There are three ways to measure root canal length: 1, feel method; 2, x-ray method; 3, electrical measurement method. At present, Japan has a variety of models of root canal length measuring instrument in clinical applications, some countries in the West are also promoting the application, so that the electrical measurement method in Japan and Western countries as a major method. In recent years, China's Huang Lizi such as the root canal length of the electrical measurement principle made a unique exposition, and developed into three kinds of root canal length electrical measuring instrument, Zhang Shiguo also developed KZC-3-type oral impedance analyzer, one of its functions The direct use of impedance measurements of the root canal length readings. 1975 Seidberg reports: touch method accuracy is higher than the electrical measurement method. In recent years, such as China's Zhao Pan and