Does the size of the resorbed bone periapically predict the lesional type


A retrospective study on (86)periapical lesions associated with non-vital anterior teeth was performed. The size of the resorbed bone caused by the lesion was measured to the nearest millimeters on the radiograph. Twenty two of the lesions were radicular cyst and the remaining (64) were granuloma or abscess.The size of the resorbed bone was related to the histological type of the lesion. It was possible to predict radicular cyst with (91.3%) accuracy before apical surgery is undertaken. In periapical granuloma or abscess, it Was possible to predict with (94%) accuracy. Therefore, selection of treatment modality whether conventional endodontic or apical surgery is possible