Evaluation of marginal integrity of materials used in root postresorption cavities

Abstract

Background. Tooth resorption is a disease which can lead to the loss of dental hard tissue. The process of resorption is mediated by specific interactions between immune cells and hard tissues of the tooth. Recognition of this process is mostly random thanks to an x-ray examination, and the treatment involves stopping the process and restoring the lost tissues of the tooth if possible. Amalgam is the oldest material used for this purpose. Currently, the MTA is the most recommended material, due to its properties, especially high biocompatibility. Objectives. The aim of the study is to evaluate which of the most commonly used materials for filling postresorption cavities provides the best seal. Material and methods. 50 extracted human teeth were used in the study. Four cuts imitating postresorption cavities were performed in the middle part of the root of each tooth and were further filled with: amalgam GS-80, IRM®, Pro-Root® MTA and Fuji® IX. The evaluation of leakage of these materials was tested by the dye penetration method using the four-level Mayer scale. Results. The lowest dye penetration, and thus the best sealing, was obtained using ProRoot MTA. The largest leakage of dye-almost double-was obtained using Fuji IX. The results were statistically analyzed. Conclusions. MTA, amalgam and IRM can be successfully used to fill postresorption cavities due to their high marginal integrity © 2017 by Wroclaw Medical University and Polish Dental Society.