Root canal therapy is the most commonly used effective treatment for endodontic and periapical diseases. The principle of root canal therapy is to remove most of the infections in the root canal by mechanical and chemical methods, and to prevent periapical lesions or promote the healing of periapical lesions by filling the root canal and sealing the crown.

Root canal therapy is the most commonly used effective treatment for endodontic and periapical diseases. The principle of root canal therapy is to remove most of the infections in the root canal by mechanical and chemical methods, and to prevent periapical lesions or promote the healing of periapical lesions by filling the root canal and sealing the crown.

Root canal therapy is the most commonly used effective treatment for endodontic and periapical diseases. The principle of root canal therapy is to remove most of the infections in the root canal by mechanical and chemical methods, and to prevent periapical lesions or promote the healing of periapical lesions by filling the root canal and sealing the crown.

Root canal therapy is the most commonly used effective treatment for endodontic and periapical diseases. The principle of root canal therapy is to remove most of the infections in the root canal by mechanical and chemical methods, and to prevent periapical lesions or promote the healing of periapical lesions by filling the root canal and sealing the crown.

Root canal therapy is the most commonly used effective treatment for endodontic and periapical diseases. The principle of root canal therapy is to remove most of the infections in the root canal by mechanical and chemical methods, and to prevent periapical lesions or promote the healing of periapical lesions by filling the root canal and sealing the crown.

Root canal therapy is the most commonly used effective treatment for endodontic and periapical diseases. The principle of root canal therapy is to remove most of the infections in the root canal by mechanical and chemical methods, and to prevent periapical lesions or promote the healing of periapical lesions by filling the root canal and sealing the crown.

Root canal therapy is the most commonly used effective treatment for endodontic and periapical diseases. The principle of root canal therapy is to remove most of the infections in the root canal by mechanical and chemical methods, and to prevent periapical lesions or promote the healing of periapical lesions by filling the root canal and sealing the crown.

Root canal therapy is the most commonly used effective treatment for endodontic and periapical diseases. The principle of root canal therapy is to remove most of the infections in the root canal by mechanical and chemical methods, and to prevent periapical lesions or promote the healing of periapical lesions by filling the root canal and sealing the crown.