Two case reports describing the non-surgical management of external root resorption with bioactive material

External root resorption (ERR) is a lytic process occurring in the cementum, or cementum and dentin of the roots of teeth. Here two case reports of the inflammatory ERR in mandibular molars has been discussed .In both the cases the chief complaint was pain.The alkalinity and sustained calcium hydroxide release exhibited by MTA was considered for using to treat EER, followed by permanent prosthesis. The clinical and radiographic follow-up after one month three month and six month revealed that treated teeth were functional, the progression of the ERR had ceased, the resorptive area was replaced with newly formed bone and periapical radiolucency was healed.