K file (Nickel Titanium)

Usage method of K file: Use EDTA to lubricate the root canal, use the “twist” approach to use K file, that is, rotating back and forth at 45 degrees, pull up when encountering resistance, until eliminate friction, then move forward until up to the estimated length of work., in the process, if there are too many shards need to rinse with the 0.5%-5.25% of sodium hypochlorite. After preparing, change the size of K file to keep on preparing, until prepare to 15#