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 .
An In Vitro Comparison of Marginal Adaptation of MTA and MTA-Like Materials in the Presence of PBS at One-Week and Two-Month Intervals
Objective : This study compared the marginal adaptation of mineral trioxide aggregate ( MTA ) and MTA-like material s as root-end fillings after incubation in phosphate buffer saline ( PBS ) , a synthetic tissue fluid , for either 1 week or 2 months . Material s and Methods : In this experimental study , seventy-two extracted human single-rooted teeth were prepared and obturated with gutta-percha and AH26 sealer . The apical 3 mm of the roots were resected . Root-end cavities were prepared with an ultrasonic retrotip . The specimens were r and omly divided into three groups ( n=24 ) and filled with either ProRoot MTA , OrthoMTA , or RetroMTA . Half of the specimens in each group were stored in PBS for 1 week the other half for 2 months . Epoxy resin replicas from the resected root-end surfaces and longitudinally sectioned roots were fabricated . The gaps at the material /dentin interface were measured using a scanning electron microscope ( SEM ) . Transversal , longitudinal , and overall gap sizes were measured . The data were analyzed using Kruskal-Wallis and Mann-Whitney tests . The significance level was set at p < 0.05 . Results : There were no significant differences between the marginal adaptation of ProRoot MTA , RetroMTA , and OrthoMTA in both transverse and longitudinal sections after incubation for either 1 week or 2 months ( p > 0.05 ) . In addition , the test groups were not significantly different regarding the overall mean gap values ( p > 0.05 ) . Conclusion : Under the conditions of this study , there was no difference between the marginal adaptation of ProRoot MTA , OrthoMTA , and RetroMTA as root-end filling material s after exposure to PBS for either 1 week or 2 months
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 .