en ترمیمی Cosmetic and Restorative Dentistry پژوهشي Research <p><strong> Background</strong>: As the use of different irrigants to eliminate residual debris and smear layer in<br>the field of endodontic is unavoidable, by considering the effect of irrigants on the bond strength<br>of resin composite restorations, this study was designed to evaluate the effect of a mixture of a<br>tetracycline isomer, an acid, and a detergent (MTAD) on the shear bond strength of two self-etch<br>adhesives, Clearfil SE Bond and Adper Prompt L- Pop to dentin.<br><strong>Materials and Methods</strong>: The crowns of 80 extracted premolars were transversally sectioned to<br>expose dentin. Flat dentin surfaces were wet abraded with 320-grit abrasive paper and randomly<br>assigned to eight groups according to two self-etch adhesive and four dentin surface treatments:<br>direct application over smear layer (no treatment), etching with 35% phosphoric acid for 15s, 1<br>min 5.25% NaOCl/1 min MTAD and 20min 1.3% NaOCl/5min MTAD. Shear bond strength was<br>tested 24 h after storage in distilled water at 37ºC in incubator. Data were analyzed using one-way<br>ANOVA followed by duncan post-hoc (α=0.05).<br><strong>Results</strong>: Phosphoric acid etching prior to SE Bond application significantly decreased the shear bond<br>strength to dentin (P<0.05). Application of MTAD clinical protocol (20min 1.3% NaOCl/5min MTAD)<br>did not significantly decrease the shear bond strength of self-etch adhesives to dentin (P=0.745)<br><strong>Conclusions</strong>: Based on the results of present investigation, it seems that the use of clinical protocol<br>of 1.3% NaOCl as a root canal irrigant and a 5-min application of MTAD as a final rinse to remove<br>the smear layer has no adverse effect on the shear bond strength of self-etch adhesives to dentin.</p><hr><p></p><p> <strong>Source:</strong> Dental Research Journal</p><p><a href="http://www.drj.mui.ac.ir/index.php/drj/article/view/891" target="_blank"><font color="#0000ff"> Full text</font></a></p><p></p> Adhesives, bond strength, smear layer, MTAD 0 0 http://idai.ir/browse.php?a_code=A-10-32-375&slc_lang=en&sid=1 Vajihesadat Mortazavi 10031947532846001578 10031947532846001578 Yes School of Dentistry, Isfahan University of Medical Sciences,Isfahan, Iran Abbasali Khademi 10031947532846001579 10031947532846001579 No Isfahan University of Medical Sciences Kazem Khosravi 10031947532846001580 10031947532846001580 No Isfahan University of Medical Sciences Mohammadhoseein Fathi 10031947532846001581 10031947532846001581 No Isfahan University of Medical Sciences Mohammad esmaeil Ebrahimi 10031947532846001582 10031947532846001582 No Tabriz University of Medical Sciences, Tabriz, Iran Shirin Sahnaseri 10031947532846001583 10031947532846001583 No University of Medical Sciences, Isfahan, Iran Navid Khalighinejad 10031947532846001584 10031947532846001584 No School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran Hamid Badrian 10031947532846001585 10031947532846001585 No School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran