Selective Nonsurgical Endodontic Retreatment: Relevant Aspects for Clinical Application—A Scoping Review

This scoping review explored the clinical applications and outcomes of selective nonsurgical endodontic retreatment in cases of persistent or secondary endodontic infection. A systematic search of six databases was conducted following PRISMA-ScR guidelines, identifying seven eligible studies. Outcomes assessed included clinical success, fracture resistance, tooth survival and cost-effectiveness. Evidence suggests that selective retreatment offers comparable clinical results to conventional retreatment, with added benefits such as greater preservation of tooth structure and improved fracture resistance. It also appears to be a more cost-effective option by reducing the need for further interventions. Cone-beam computed tomography aids in diagnosis and case selection, supporting a more conservative approach. Despite these promising findings, the overall quality of evidence ranged from low to moderate, indicating the need for high-quality clinical trials to confirm the effectiveness and broader applicability of selective nonsurgical endodontic retreatment.