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 ) .
Influence of the exposure of MTA with and without calcium chloride to phosphate-buffered saline on the push-out bond strength to dentine.
AIM To analyse the influence of exposure of mineral trioxide aggregate ( MTA ) with and without calcium chloride ( CaCl2 ) to phosphate-buffered saline ( PBS ) on the push-out bond strength , over different experimental periods . METHODOLOGY One hundred and twenty dentine discs with st and ardized cavities were filled with MTA with and without 10 % CaCl2 . The specimens were r and omly divided as follows ( n = 30 ) : ( G1 ) MTA in contact with a moistened cotton pellet , ( G2 ) MTA immersed in PBS , ( G3 ) MTA + CaCl2 in contact with a moistened cotton pellet and ( G4 ) MTA + CaCl2 immersed in PBS . The sample s were stored for 3 , 28 and 60 days . The bond strengths were measured with the Instron Testing machine . Data were analysed using the three-way anova and Tukey test ( P < 0.05 ) . RESULTS In general , the sample s of MTA with and without CaCl2 , exposed to PBS , had higher bond strength values in all study periods ( P < 0.05 ) . Analysis of the influence of addition of CaCl2  to MTA ( G1 × G3 ) evidence d significant differences in bond strength in the different periods ( P < 0.05 ) . CONCLUSIONS The exposure of MTA to PBS positively influenced the push-out bond strength , whereas the addition of CaCl2 had a negative influence
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 ) .