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 different irrigating solutions on bond strength of two root canal-filling systems.
The bond strength of ActiV GP root canal filling system and gutta-percha/AH plus sealer when used after final rinse with different irrigation protocol s was evaluated in this study . Forty roots were r and omly divided into four groups ( n = 10 ) according to the final irrigation regimen : group 1 , 5 mL 17 % EDTA ; group 2 , 5 mL 17 % EDTA followed by 5 mL 2 % chlorhexidine gluconate ( CHX ) ; group 3 , 5 mL MTAD ; and group 4 , 5 mL MTAD followed by 5 mL 2 % CHX . Each group was further subdivided into two subgroups ( n = 5 ) : in subgroup a , the root canals were filled using warm gutta-percha and AH plus sealer , and in subgroup b , the root canals were filled using the ActiV GP obturation system . Two-millimeter thick horizontal sections from the coronal and midthirds of each root were sliced for the push-out bond strength measurement . EDTA/CHX/ActiV GP ( 2.46 + /- 1.02 MPa ) yielded significantly the highest mean bond strength value . The significantly lowest bond strength was recorded for EDTA/ActiV GP ( 1.12 + /- 0.72 MPa ) . It was concluded that the bond strength of ActiV GP was improved by using 2 % CHX in the final irrigation after 17 % EDTA , whereas CHX did not enhance the effect of MTAD on the bond strength of the material . The bond strength of gutta-percha/AH plus was adversely affected by MTAD and MTAD/CHX
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 ) .