Method for using BLX-machine-use nickel titanium file for testing experiment

Abstract

The invention discloses a method for using a BLX-machine-use nickel titanium file for a testing experiment. The method comprises the following steps: first, using a 20% EDTA-combined BLX-machine-use nickel titanium file for root canal preparation of an experimental subject by use of a crown root direction preparation method; with a condition of a motor speed of 400-550RPM, using a G drill to expand an open root canal orifice; by the above method, dividing a straight-through root canal into four parts comprising a root canal crown part, a root canal middle and upper part, a root canal middle and lower part and a root tip part with each part being pulled through back and forth for 5 times; then cleaning debris among file threads; repeating the above operations for multiple times; using a NO.20 stainless steel K file to confirm whether the working length is achieved; and using BLX NO. 25 and NO.35 root canal files for successive root canal preparation by use of an operation method same as that of the first step. The beneficial effects of the method are that: the method can reduce the occurrence rate of pains during the period of root canal therapy, has an appropriate effect on pain reaction extent, and is worthy of clinical popularization and use.

Description

technical field [0001] The invention relates to an experimental method in the oral cavity field, specifically, a method for conducting a test experiment with a nickel-titanium file used in a BLX machine. Background technique [0002] Root canal therapy is an effective method for treating pulp disease and periapical disease, and root canal preparation is the key to the success of root canal therapy. Root canal preparation is to remove the infected material in the root canal through mechanical cutting, and at the same time, on the basis of the original root canal direction, the root canal is formed into a relatively regular tapered lumen with a narrow mouth and a large mouth, so as to facilitate the free entry of irrigation fluid Root canal, remove the cut material out of the root canal, and the tapered root canal also facilitates root canal filling, so as to obtain a good root canal seal and create conditions for healing. In order to achieve this goal, not only does the doct...

AI Technical Summary

Problems solved by technology

At present, the commonly used root canal preparation instruments are mainly divided into two types: one is stainless steel instruments, which have a high rate of clinical application, but based on their steel characteristics, the instruments have high hardness, low elasticity, and relatively weak cutting ability, which is time-consuming and laborious.

At the same time, when preparing the root canal, it often causes complications such as steps, open apical foramen, root canal deviation and even root canal wall perforation.

After root canal preparation, the original conical cavity becomes unsmooth, affecting the smooth entry of root filling materials, reducing the quality of root canal filling and the effect of root canal treatment