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 .
Push-out bond strength of two root-end filling materials in root-end cavities prepared by Er,Cr:YSGG laser or ultrasonic technique.
This study compared the push-out bond strength of mineral trioxide aggregate ( MTA ) and a new endodontic cement ( NEC ) as root-end filling material s in root-end cavities prepared by ultrasonic technique ( US ) or Er , Cr : YSGG laser ( L ) .  Eighty single-rooted extracted human teeth were endodontically treated , apicectomised and r and omly divided into four following groups ( n = 20 ) : US/MTA , US/NEC , L/MTA and L/NEC . In US/MTA and US/NEC groups , root-end cavities were prepared with ultrasonic retrotip and filled with MTA and NEC , respectively . In L/MTA and L/NEC groups , root-end cavities were prepared using Er , Cr : YSGG laser and filled with MTA and NEC , respectively . Each root was cut apically to create a 2 mm-thick root slice for measurement of bond strength using a universal testing machine . Then , all slices were examined to determine the mode of bond failure . Data were analysed using two-way anova . Root-end filling material s showed significantly higher bond strength in root-end cavities prepared using ultrasonic technique ( US/MTA and US/NEC ) ( P < 0.001 ) . The bond strengths of MTA and NEC did not differ significantly . The failure modes were mainly adhesive for MTA , but cohesive for NEC . In conclusion , bond strengths of MTA and NEC to root-end cavities were comparable and higher in ultrasonically prepared cavities
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 .