Root canal therapy is a treatment that requires treatment.

Root canal therapy is a treatment for dental caries. Root canal therapy is a treatment for dental caries. Root canal therapy is a treatment for dental caries. Root canal therapy is a treatment for dental caries. In this case, teeth with living nerves are called teeth with living nerves, and teeth without dental nerves are called dead pulp teeth. Dead pulp teeth lose the nutritional function of pulp and become brittle and easy to crack. Therefore, braces can protect teeth well.