Avaliação da dor pós-operatória após a utilização de técnica de instrumentação reciproc: um estudo clínico controlado e randomizado

Abstract

The aim of this study was to evaluate the postoperative pain after treatment of root canal system using two instrumentation techniques. The study included 78 patients aged 16-64 years (mean 25.6 years), male, with mandibular molar teeth with pulp necrosis asymptomatic (n = 78). Root canal treatment was performed by a single operator specialist in endodontics in one session. Mechanical preparation of the root canal was done using the instrumentation techniques ProTaper® and Reciproc®. Postoperative pain was recorded using a visual analogue scale (VAS) and verbal description, in well-defined categories in three time intervals, 24 hours, 72 hours and 7 days. The evaluation of postoperative pain was recorded as none, mild pain, moderate pain and severe pain or flare-up. Data were analyzed with statistical test nonparametric Mann Whitney, with the help of software STATA. The incidence of post-operative pain for the ProTaper group (PT) after 24 hours was 17.94% and after 72 hours was 5.12%. For Reciproc group (RP) the incidence after 24 hours was 15.38% and after 72 hours was 2.56%. Neither group had severe pain in periods. In this study there was no significant difference (p> 0.05) in postoperative pain between ProTaper® and Reciproc® instrumentation technique in performing endodontic treatment