The study included 13 primary mandibular second molars with infected pulp and congenitally missing second premolars in which traditional root canal treatment with gutta-percha was contraindicated. Pulpectomy was performed in each tooth and the canals were filled with OrthoMTA. The clinical and radiological outcomes of the treatment were evaluated at 3, 6, 9, and 12 months. Fractal analysis was used to detect changes in the trabecular bone after the treatment. Repeated measures analysis of variance test and two independent t-tests were used to evaluate the data.
The purpose of this study was to describe the clinical and radiological outcome of root canal treatment with OrthoMTA in primary second molars without successors in which traditional root canal treatment with gutta-percha could not be performed.