在根管治疗术的操作中,为了保证根管充填治疗的效果,必须准确掌握牙根管的长度,以便将牙胶尖能充填到牙根尖的恰当位置。常规的测量牙齿根管长度的方法,一是用根管扩大针插入牙根管(根尖部),凭手感来确定根管的长度;二是用专门设计的根管长度测量仪来测量其长度。前者准确性较差,需要经验比较丰富的医师才能掌握,后者则需要专门仪器。在计算机应用普及的今天,我们采用计算机辅助测量牙根管长度,做了尝试。 In the operation of root canal therapy, in order to ensure the effect of root canal filling treatment, the root canal length must be accurately grasped so that the gum root tip can be filled into the proper position of the root tip. Conventional method of measuring the root canal length of teeth, one is to use the root canal to expand the needle into the root canal (root tip), with the hand to determine the length of the root canal; the second is measured with a specially designed root canal length measuring instrument length. The former is less accurate and requires more experienced physicians to master, while the latter requires specialized instruments. In the popularization of computer applications today, we use computer-aided measurement of root canal length, made an attempt.