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根管预备是根管治疗的关键步骤[1],但其操作步骤繁多、耗时较长,患者可出现明显的不适感,因而常造成部分患者不愿接受根管治疗;老年牙病患者因机体抵抗力下降及开口时间短、开口度不足,对根管治疗更不易耐受,致使根管预备操作更加困难、时间进一步延长。因此,探索简洁、高效的根管预备方法具有重要意义。近年来,笔者将ProTaper机用镍钛锉和K3机用镍钛锉用于老年人患牙行根管治疗时的根管预
Root canal preparation is a key step of root canal therapy [1], but its operation steps are numerous and take a long time, the patient may have obvious discomfort, which often results in some patients do not want to receive root canal therapy; Reduced body resistance and the opening time is short, the lack of opening, the root canal treatment is more difficult to tolerate, resulting in more difficult to prepare the root canal, the time to further extend. Therefore, to explore simple and efficient method of root canal preparation is of great significance. In recent years, I will ProTaper machine nickel-titanium file and K3 machine nickel-titanium file for root canal treatment of elderly patients with root canal pre-treatment