La risoluzione delle complessità nei ritrattamenti

ObjectivesThe aim of this study is to describe the main causes and prevalence of endodontic therapy failures, to promote a diagnostic and prognostic work-up suited to the relevant pathology evolution degree and to suggest appropriate clinical strategies to achieve the expected results.Materials and methodsThrough an extensive review of recent literature, combined with an accurate analysis of clinical cases and epidemiological investigation, it was possible to gather and evaluate the necessary information and data for providing clinical dictates on the solution of endodontic retreatment problems.ResultsThe success percentage of endodontic retreatments is quite variable, ranging from 60% to 85% of treated cases. Such percentage is strongly dependent on two critical variables: the preoperative condition of periapical tissues and the previously provided treatment. A chronic apical periodontitis subjected to inadequate therapy leading to the structural alteration of dental elements, is indeed a crucial factor affecting the retreatment prognosis.ConclusionsAll retreatment procedures should be preceded by an accurate case analysis. Adverse anatomical conditions and periapical bone lesions may predict an unfavorable prognosis and should be taken into great consideration. However, in all other clinical conditions, high success rates can be achieved, ensuring a long-term survival of dental elements.