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根管治疗术是保存牙髓病变牙齿的主要疗法之一,创于18世纪50年代,至今已有200多年的历史。随着医药科学事业的发展,近年来本术在基础研究和临床研究方面都取得了显著的进展,其主要表现在: 一、器械的革新 1.口内X线荧光显像:在根管治疗过程中,如果能直接地或动态地观察牙根情况,对术者将是十分方便的。最近,在日本研制成功一台DXT—100型X线荧光显像系统,X线可从口内的选定位置穿透牙齿进入图像增强器,其输出图像经由TV摄像机转变为可见光信号后输入电视储存器。图像被“冻结”在电视屏幕上。牙科医生可在任何
Root canal therapy is one of the main treatments for preserving dental pulp lesions. It was founded in the 1850s and has a history of more than 200 years. With the development of medical science, in recent years, this technique has made significant progress in basic research and clinical research, its main manifestations are as follows: First, the instrument innovation 1 mouth X-ray fluorescence imaging: in the root canal treatment process , If you can directly or dynamically observe the root of the situation, the surgeon will be very convenient. Recently, a DXT-100 X-ray fluorescence imaging system was successfully developed in Japan. The X-ray can penetrate the teeth from selected positions in the mouth and enter the image intensifier. The output image is converted into a visible light signal by a TV camera and input into a television storage Device. The image is “frozen” on the TV screen. Dentists are available at any