Foraminal enlargement (FE) is an intentional procedure that enlarges the cement canal. However, some RCTs indicate that enlarging the FE causes postoperative pain, flare-up, and destroy the apical constriction, whilst some RCTs pointed out there is no difference in terms of pain when a FE has been performed in maxillary anterior teeth with apical periodontitis. We will assess the risk of postoperative pain as risk ratio (RR). The binary (dichotomous) data: 0-44 mm: Mild or no pain; 45-100 mm: Moderate to severe pain.
The purpose of this study is to determine whether enlarging the apical foramen causes postoperative pain in maxillary anterior teeth with apical periodontitis.