On the basis of available evidence , MTA presented good marginal adaptation to dentine walls .
This systematic review analysed the literature comparing marginal adaptation of mineral trioxide aggregate ( MTA ) with other filling material s in root-end cavities .
Evaluation of Marginal Adaptation of Root-End Filling Materials Using Scanning Electron Microscopy
Introduction The importance of perfect apical seal in endodontics , more specifically in periradicular surgery , is the motivation/reason for development of root-end filling material s with favorable physical , chemical and biological characteristics . The aim of this in vitro study was to evaluate the marginal adaptation of root-end filling material s using scanning electron microscopy . Material s and Methods Twenty five human maxillary anterior teeth were prepared using a K-File # 50 to 1 mm short of the apical foramen and filled with gutta-percha and Sealapex using the lateral compaction technique . The apical 3 mm of the roots were sectioned perpendicularly to the long axis of the teeth . A 3-mm-deep root-end cavity was prepared using ultrasonic tips powered by an Enac ultrasonic unit . The teeth were r and omly assigned to five groups according to the material s tested including IRM , amalgam , ProRoot MTA , Super-EBA and Epiphany/Resilon . Root-end cavities were filled with the material s prepared according to the manufacturers ’ instructions . The root apices were carefully prepared for sputter coating and later evaluation using Scanning Electron Microscope ( SEM ) . The images of root-end fillings were divided into four quadrants and distributed into five categories according to the level of marginal adaptation between the root-end material and the root canal walls . The Fisher exact test with Bonferroni correction was used for statistical analysis . The level of significance was set at P = 0.005 . Results SEM images showed the presence of gaps in the root-end filling material s. No significant difference was observed between the tested material s ( P > 0.005 ) . Conclusion ProRoot MTA , IRM , amalgam , Super-EBA and Epiphany/Resilon showed similar marginal adaptation as root-end filling material
On the basis of available evidence , MTA presented good marginal adaptation to dentine walls .
This systematic review analysed the literature comparing marginal adaptation of mineral trioxide aggregate ( MTA ) with other filling material s in root-end cavities .