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 ) .
The effect of medicaments used in endodontic regeneration technique on the dislocation resistance of mineral trioxide aggregate to root canal dentin.
INTRODUCTION The aim of this study was to evaluate the effect of calcium hydroxide ( CH ) and antibiotic pastes , including a mixture of metronidazole and ciprofloxacin , with and without minocycline or cefaclor , on the dislocation resistance of mineral trioxide aggregate ( MTA ) to root dentin . METHODS Eighty single-rooted human m and ibular premolars were selected . The teeth were prepared by using the ProTaper system . The prepared teeth were then instrumented to a # 6 Peeso reamer to obtain a st and ard internal diameter of 1.5 mm . The reamers were passed 1 mm beyond apex to simulate immature teeth . The specimens were then r and omly divided into a control group ( no intracanal medicament was used ) and 4 experimental groups that were treated with an intracanal medicament : CH , double antibiotic paste ( DAP ) with metronidazole and ciprofloxacin , triple antibiotic paste ( TAP ) with minocycline , or TAP with cefaclor ( n = 16 ) . After 3 weeks , the medicaments were removed , and approximately 3 mm of MTA was placed in the coronal third of the canals . A push-out test was used to measure the dislocation resistance between the root dentin and MTA . Data were analyzed by using one-way analysis of variance and Tukey post hoc tests . RESULTS The dislocation resistance values of the CH , TAP with minocycline , and TAP with cefaclor groups were similar to those of the control group ( P > .05 ) , whereas the DAP group had the lowest dislocation resistance when compared with the other groups ( P < .05 ) . Overall , there was a predominance of cohesive failures between root dentin and MTA . CONCLUSIONS The results of this study indicate that the application of DAP as an intracanal medicament reduced the dislocation resistance of MTA to root dentin
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 ) .