Impacted third molars influence on root resorption of second molars

Aim and actuality: to evaluate root resorption of second molars caused by impacted third molars using cone beam computed tomography. 103 patients with 216 impacted third molars were collected External root resorption of second molars was analysed using cone beam computed tomography. Depth of retention, and inclination angle of impacted third molar were analyzed using X-ray. It is found whether roots of second molars are damaged by resorbtion as well as the depth and place of resorbtion in the side of tooth root is explored. External root resorption of second molars was diagnosed in 18.52% (40/216) of all the cases using cone beam computed tomography. External root resorption of second molars is most frequently caused by mesioangular and horizontal position of impacted third molars. This complication occurs rather often and might be diagnosed by cone beam computed tomography. Statistically dependable level is found between external root resorption and gender, position of impacted third molar, jawbone, and relation with mandibular ramus