HIGHLIGHTSPOBT in endodontic research predicts the clinical behavior of endodontic material s .
Introduction : There is limited literature on the impact of testing variables on the push‐out bond test ( POBT ) .
This review identified design s of the POBT used in the endodontic literature and aim ed to determine which experimental variables may influence the push‐out bond strength ( POBS ) .
Effect of several intracanal medicaments on the push-out bond strength of ProRoot MTA and Biodentine.
AIM To evaluate the effect of prior application of several intracanal medicaments on the push-out bond strength of ProRoot MTA and Biodentine . METHODOLOGY Sixty freshly extracted maxillary anterior teeth were sectioned below the cementoenamel junction , and the root canals instrumented using rotary files . Thereafter , a parallel post drill was used to obtain a st and ardized root canal dimension . The roots were r and omly assigned into one of the following groups with respect to the intracanal medicament applied : group 1 : calcium hydroxide ( CH ) powder ( Merck , Darmstadt , Germany ) mixed with distilled water ; group 2 : a mixture of metronidazole , ciprofloxacin and minocycline ( triple antibiotic paste ) ; group 3 : a combination of amoxicillin and clavulanic acid ( Augmentin ; Champs Pharmacy , San Antonio , TX , USA ) ; group 4 : an antibiotic-corticoid compound paste ( Ledermix ; Riemser , Greifswald , Germany ) ; and group 5 : no medicament ( control ) . Following removal of medicaments with instrumentation and irrigation , the roots were cut into 1-mm-thick parallel transverse sections in a coronal-to-apical direction ( 5 slices/tooth ) . Thereafter , the specimens were divided into two subgroups according to the calcium silicate cement applied ( n = 30/group ) : ( i ) ProRoot MTA ( Dentsply Tulsa Dental , Tulsa , OK , USA ) and ( ii ) Biodentine ( Septodont , Saint-Maur-des-Fosses , France ) . A push-out test was performed , and the data were analysed statistically using two-way anova and Tukey 's post hoc test . RESULTS Regardless of the type of intracanal medicament used , Biodentine had significantly higher bond strength than MTA ( P < 0.05 ) . The highest push-out bond strength results were obtained in CH-treated dentine . Compared with other medicaments , this value was only significantly higher than that of Ledermix ( P < 0.05 ) . In both the MTA and Biodentine groups , pairwise comparisons between other medicaments showed similar debonding values ( P > 0.05 ) . CONCLUSIONS Biodentine had a higher bond strength to root canal dentine than ProRoot MTA . Prior CH in distilled water intracanal placement increased the dislodgment resistance of both calcium silicate cements
HIGHLIGHTSPOBT in endodontic research predicts the clinical behavior of endodontic material s .
Introduction : There is limited literature on the impact of testing variables on the push‐out bond test ( POBT ) .
This review identified design s of the POBT used in the endodontic literature and aim ed to determine which experimental variables may influence the push‐out bond strength ( POBS ) .