Root canals treatment is a procedure done to repair and save a tooth that is badly decayed or become infected .

During a Root canals in mandibular first molar treatment , the nerve and pulp are removed and the inside of the tooth is cleaned and sealed with a bio-compatible material. This will be followed by crown placement to strengthen the tooth.

Can i take antibiotics and skip root canal therapy?

Antibiotics are helpful in reducing the amount of infection in tooth, but it is only a temporary relief... The infection will not subside until the affected root canal is cleaned and medicated via endodontic therapy.