Can MTA Resolution Affect the Prognosis of Regenerative Endodontic Procedures in Long Term: Case Report

Introduction: This report aims to evaluate the clinical and radiological results of cases in which Mineral Trioxide Aggregate (MTA) was found to dissolve in the root canals in the long term after Regenerative Endodontic Procedures (REP). Case Report: The first case is an 8-year-old boy who applied to our clinic with the diagnosis of symptomatic pulpitis in the lower left first molar. The second case was an 11-year-old girl with asymptomatic necrosis in her left lower jaw second molar. The prescribed method of treatment was blood clot revascularization. In both cases, triple antibiotic paste, and MTA were used for REP. After four to six years of follow-up, the teeth were clinically asymptomatic, but radiographic evaluation showed resolution of the MTA in both cases. While root development was considered complete in the first case, root dilaceration was observed in the second case. Conclusion: The evaluation of these cases suggested that, despite long-term clinical adverse effects, MTA dissolution did not affect the clinical and radiographic success of REP treatments.