Micro Push-Out Bond Strength of Resin Composite to Dentin in Primary Dentition Using Three Universal Adhesives with Different pH: An In Vitro Study

To evaluate the bond strength of different universal adhesives on deciduous tooth dentineand their relationship with composition and potential hydrogen (pH). Methods: An in vitromicro push-out test 150 samples (n = 50) per group adhesive, namely, Adhese Universal(ADH; Ivoclar Vivadent), Futurabond U (FUT; Voco GmbH) (Test), Scotchbond Universal withpre-conditioning (SCO; 3M) (Control), to record (BS) type adhesive failure.Results: The results (megapascals (MPa)) varied, showing no statisticalsignificance. corresponding averages are MPa: ADH, 13.66 2.81; FUT, 14.48 2.88; SCO,14.98 3.96. Additionally, frequency failure was as follows: mixed (60.7%), adhesive(27.3%), cohesive (12%). Conclusions: SCO, a pH 2.7, showed greater resistance tofracture, while 2.3 pre-conditioning, approached same values, being aone-step adhesive. No found between