Does surface treatment of demineralized dentin impact on shear bond strength?

Aim: This study investigated the effect of various surface treatments on bond strength a universal adhesive to demineralized dentin. Materials and Methods: Human dentin surfaces forty-eight carries-free maxillary premolars were prepared by acidic solutions. Teeth randomly distributed into four groups (n=12) getting different treatments. Three minutes application CPP‑ACP (group 1), Er: YAG laser irradiation 2), combined with three 3), no treatment 4). Thereafter composite tube (Filtek TM Ultimate, 3M ESPE) bonded testing via adhesive; Single Bond Universal Shear Strength (SBS) measured. Data analyzed utilizing ANOVA Tukey tests (P<0.05). Results: Only CPP-ACP radiation, resulted in highest lowest SBS respectively (p<0.001). after was little more than alone. Conclusion: The could increase adhesives used Laser has an adverse SBS.