Upper central incisors with periapical lesions treated with two integrated endodontic systems: a six-month randomized controlled trial

Aim: To assess preliminarily the success rate of the root canal treatment with two integrated shaping and filling systems of upper central incisors with chronic periapical pathosis. Methodology: Sixty adult subjects with an untreated maxillary central incisor presenting a chronic periapical lesion smaller than 5 mm in diameter were recruited for the present study. The patients were randomly divided into two treatment groups: G1 (n = 30), Revo-S/One Step Obturator; G2 (n = 30) GTX/GTX Obturator. All root canal treatments were performed in a single session by the same operator. Sensitivity to palpation and percussion was registered at baseline and at the six-month recall. Radiographic healing was scored by two blind examiners according to a previously described scale. The absence of statistically significant differences in terms of baseline clinical parameters between the two groups was assessed by means of a Mann–Whitney test (age, apical gauging) and χ2 test (sensitivity to percussion and palpation). The radiographic scores attributed to the two groups were compared with a Mann–Whitney test, while a χ2 test served to compare the clinical data gathered after six months (p