When a tooth suffers pulpal necrosis or acute periondontal abscess, to save a tooth, root canal therapy must be carried out to remove the source of contamination, that is the necrotic tissues in the pulpal chamber and the root canals so the bone supporting the tooth can heal. RCT aims to remove debris and disinfect the canal system. Laser assisted RCT especially patented SWEEPS technology can clean the additional side canals better than traditional technique and success rates are higher. KLDFA is the only clinic in Canberra offers this service.