𝗥𝗖𝗦 𝗚𝗢𝗟𝗗 𝑪 #𝟬𝟴 ; 𝟮𝟱 𝗠𝗠

The tip of the C-file has undergone some heat treatment, and its hardness is relatively high. At the same time, the thread of the C-file is relatively tight and the cross-section is square, so its cutting efficiency in the root canal is relatively high, and the cutting and preparation can be used to dredge the root canal.