The K file is called a round file, and there are three kinds of root canal files. The Kfile has a K-shaped structure similar to an enlarged needle, a twist-shaped drill bit, a diamond-shaped cross-section, four blades, the blades are arranged in a spiral, the groove is narrow, and the shallow The root canal wall filed is very smooth, the other two files, although you did not ask, but I will introduce it to you. The H file is called a rough file. The blade at the working end is circled around the needle shaft, and the groove of each blade changes from shallow to deep from the top to the tip. The shape is like a pyramid, this structure has a strong cutting effect. The R-shaped file, called rat tail file, is characterized in that the blade is not continuous, but has inverted tooth-like protrusions. This inverted tooth is also hovering around the long axis. The R file has a very sharp blade and a high cutting efficiency. But the filed wall is not smooth. The root canal file is often used i

In the process of root canal treatment, many treatment instruments are needed, and most of these instruments are needle-like. Sometimes due to excessive narrowing or bending of the tooth root, or due to metal fatigue in a part of the instrument, a part of the instrument may break in the root canal, which is called "broken needle". Therefore, this article will discuss how to rupture the endodontic file and extend its life.

What are the selling standards for endodontic file? Root canal treatment is a special device for root canal treatment by doctors. It thoroughly removes infected pulp and infected dentin and toxic decomposition products. After root canal rinsing, disinfection, and tight filling of the root canal, it

The main endodontic file tools described in this article are barbed broach and peeso reamer.