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 Calcium Chloride on Push-Out Bond Strength of Calcium-Enriched Mixture Cement and Mineral Trioxide Aggregate
Introduction : This in vitro study investigated the effect of adding 10 % calcium chloride ( CaCl2 ) on push out bond strength of calcium-enriched mixture ( CEM ) cement and mineral trioxide aggregate ( MTA ) to root canal dentin . Methods and Material s : A total of 120 root dentin slices with 2 mm thickness were prepared from sixty single-rooted human teeth . Dentinal discs were enlarged to achieve 1.3 mm diameter . The specimens were r and omly allocated into eight groups ( n=15 ) . Dentin discs were filled with either CEM cement or MTA with or without CaCl2 and the push out test was performed after 3 and 21 days . Data were analyzed with two-way ANOVA test . The level of significance was set at 0.05 . Results : There was an interaction effect amongst all groups ( P=0.028 ) . After 3 days , CEM cement showed a significantly lower bond strength than other groups ( P<0.05 ) while MTA demonstrated significantly higher bond strength than CEM cement with or without CaCl2 ( P=0.001 ) . After 21 days , CEM cement with or without CaCl2 had no significant difference with other groups ( P>0.05 ) . However , the bond strength of MTA decreased when CaCl2 was added ( P=0.011 ) . Conclusion : The addition of 10 % CaCl2 increased the push out bond strength of CEM cement and improved it over time ; while , this substance aggravated this property for MTA
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 ) .