the effect of dimethyl sulfoxide on the microtensile bond strength of universal adhesives to dentin

Objectives: the goal of this investigation was to see how a dentin pretreatment with 5% dmso affected the microtensile bond strength (μtbs) of universal adhesives.materials and methods: in terms of adhesive kind and etching procedure, 32 healthy third human molars were randomly separated into eight groups. three universal adhesives with etch-and-rinse and self-etch strategies (g-premio bond: gpb.er/se, all-bond universal: abu.er/se, prime & bond elect: pbe.er/se), one two-stage self-etch adhesive (clearfil se bond: csb), and one two-stage etch-and-rinse adhesive (adper single bond 2: asb) were employed in with and without dmso modes (group/n=16). dentin pretreatment was conducted with 50 μl of 5% dmso, followed by the use of an adhesive. the μtbs of samples was tested. the influence of adhesive type and dmso application on bond strength was evaluated using a two-way analysis of variance (anova) (=0.05).results: the dentin-adhesive μtbs was significantly affected by dmso administration (p=0.003), type of adhesive (p=0.001), and the combination of dmso application and type of adhesive (p=0.027). in the dmso application mode, the average bond strength of universal adhesives with etch and rinse mode was significantly higher than in the non-application mode, but in the self-etch technique, there was no significant difference pattern between dmso applications and non-application modes in terms of adhesive bond strength.conclusion: the use of dmso in an etch-and-rinse technique can dramatically enhance the universal adhesive-dentin μtbs and has promise benefits for clinicians in terms of enhancing dentin bond performance.