en ترمیمی Cosmetic and Restorative Dentistry پژوهشي Research <b> Objective: </b>In recent years, newly developed solvent-free dental adhesives have been introduced. The aim of this study was to evaluate the marginal integrity of a new one-step solvent-free self-etch adhesive and to compare it with a commonly used two-step self-etch adhesive as the gold standard.<div><b> Materials and Methods:</b> Class V cavities (2×4×1.5 mm) were prepared on the buccal aspects of 28 human premolars. The cervical margins of the cavity preparations were placed 1 mm apical to the CEJ. Clearfil SE Bond (CSEB) (two-step self-etch adhesive) and Bond 1SF (B1SF) (one-step self-etch adhesive) were applied to the cavities in groups 1 and 2 (n=14), respectively. Then, the specimens were restored with A2 shade of APX composite resin. Each group was evaluated for dye penetration under a stereomicroscope at ×32 after 24 hours and 500 rounds of thermocycling. Statistical analyses were carried out using Mann Whitney test (α=0.05). In addition, in each experimental group, two specimens were prepared for analysis under SEM. </div><div>  <b>Results:</b> There were no significant differences in enamel margin microleakage between the two adhesives used (P=0.24( whereas, there were significant differences in dentin margin microleakage between CSEB and B1SF (P=0.004). Dentin microleakage of B1SF was higher than that of CSEB. </div><div>  <b>Conclusion:</b> Results showed that the enamel marginal integrity of B1SF as a newly developed one-step solvent-free self-etch adhesive was similar to that of CSEB as a commonly used two-step self-etch however, dentinal sealing of CSEB was better than that of B1SF.</div><hr><p class="MsoNormal" style="text-align: left direction: ltr unicode-bidi: embed"><b>Source: </b>Journal of Dentistry of Tehran University of Medical Sciences<span style="font-size: 15.5pt line-height: 115% font-family: Verdana, sans-serif color: rgb(250, 250, 250) background-color: rgb(101, 111, 115) background-position: initial initial background-repeat: initial initial"><o:p /></span></p> <p class="MsoNormal" style="text-align: left direction: ltr unicode-bidi: embed"><a href="http://jdt.tums.ac.ir/index.php/jdt/article/view/523" target="_blank"><font color="#0000ff">Full Text</font></a></p> Composite Resins; Enamel; Dentin; Microleakage; Solvents 0 0 http://idai.ir/browse.php?a_code=A-10-32-965&slc_lang=en&sid=1 Maryam Khoroushi khoroushi@dnt.mui.ac.ir 10031947532846004197 10031947532846004197 Yes Dental Materials Research Center and Department of Operative Dentistry, School of Dentistry, Isfahan Uni-versity of Medical Sciences, Isfahan, Iran Farinaz Shirban 10031947532846004198 10031947532846004198 No Department of Orthodontics and Torabinejad Dental Research Center, School of Dentistry, Isfahan Universi-ty of Medical Sciences, Isfahan, Iran Mohammadreza Shirban 10031947532846004199 10031947532846004199 No 3Department of Operative Dentistry and Torabinejad Dental Research Center, School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran