fa بررسی تاثیر دو نوع سمان رزینی Self-etch و Self-adhesive بر استحکام باند برشی پست فایبر با عاج دندان جراحی- oral surgery مطالعه اصیل original article <h5 align="right" style="text-align: justify line-height: 115% margin: 0cm 0cm 0pt unicode-bidi: embed direction: rtl" dir="rtl"><font size="3"><b><span lang="AR-SA">خلاصه:<font size="2"> </font></span></b><font size="2"><span lang="AR-SA"></span><span lang="AR-SA"></span><span lang="AR-SA"></span><span lang="AR-SA"></span><span lang="FA"></span></font></font></h5><h5 align="right" style="text-align: justify margin: 0cm 0cm 0pt unicode-bidi: embed direction: rtl" dir="rtl"><font size="2"><span>سابقه و هدف: </span><span lang="AR-SA">جداشدگی پست (</span><font face="Times New Roman"><span lang="X-NONE" dir="ltr">debonding</span><span dir="rtl"></span><span dir="rtl"></span></font><span lang="AR-SA"><span dir="rtl"></span><span dir="rtl"></span>) از مهمترین علل شکست در ترمیم<font face="B Nazanin"><span> </span>دندان‌های اندو شده با پست های فایبر میباشد. ضعیفترین حلقه اتصال در مجموعه پست </font></span><span lang="AR-SA"><font face="Times New Roman">–</font></span><span lang="AR-SA"> سمان رزینی </span><span lang="AR-SA"><font face="Times New Roman">–</font></span><span lang="AR-SA"> عاج، چسبندگی سمان به عاج است. هدف این تحقیق مقایسه استحکام باند برشی دو گروه سمان رزینی و در اتصال پست فایبر با عاج دندان بوده است.</span></font></h5><h5 align="right" style="text-align: justify margin: 0cm 0cm 0pt unicode-bidi: embed direction: rtl" dir="rtl"><font size="2"><span>مواد و روش ها: 40 دندان پرمولر تک کانال مندیبل با ریشه سالم<span><font face="B Nazanin"> </font></span>تحت درمان <span><font face="B Nazanin"> </font></span>استاندارد ریشه قرار گرفتند، سپس تاج دندان <span><font face="B Nazanin"> </font></span>از <span><font face="B Nazanin"> </font></span>محل اتصال با سمان قطع شد.<span><font face="B Nazanin"> </font></span>سپس با دریل مخصوص کارخانه </span><font face="Times New Roman"><span lang="X-NONE" dir="ltr">RTD</span><span dir="rtl"></span><span dir="rtl"></span></font><span lang="AR-SA"><span dir="rtl"></span><span dir="rtl"></span> فضای پست<font face="B Nazanin"><span> </span>در داخل کانال آماده گردید. نمونه‌ها به طور تصادفی به چهار گروه تقسیم شدند. پستهای فایبر (</font></span><font face="Times New Roman"><span lang="X-NONE" dir="ltr">Matchpost (RTD</span><span dir="rtl"></span><span dir="rtl"></span></font><span lang="AR-SA"><span dir="rtl"></span><span dir="rtl"></span> سایز 2 در گروه </span><font face="Times New Roman"><span lang="X-NONE" dir="ltr">A</span><span dir="rtl"></span><span dir="rtl"></span></font><span lang="AR-SA"><span dir="rtl"></span><span dir="rtl"></span><font face="B Nazanin"><span> </span>با سمان رزینی (</font></span><font face="Times New Roman"><span lang="X-NONE" dir="ltr">CoreCem (RTD</span><span dir="rtl"></span><span dir="rtl"></span></font><span lang="AR-SA"><span dir="rtl"></span><span dir="rtl"></span><font face="B Nazanin"><span> </span>ودر گروه </font></span><font face="Times New Roman"><span lang="X-NONE" dir="ltr">B</span><span dir="rtl"></span><span dir="rtl"></span></font><span lang="AR-SA"><span dir="rtl"></span><span dir="rtl"></span><font face="B Nazanin"><span> </span>با سمان رزینی (</font></span><font face="Times New Roman"><span lang="X-NONE" dir="ltr">Panavia F2 (Kurara</span><span lang="X-NONE" dir="ltr">y</span></font><span dir="rtl"></span><span dir="rtl"></span><span lang="AR-SA"><span dir="rtl"></span><span dir="rtl"></span> با استفاده از پرایمر و تکنیک<span><font face="B Nazanin"> </font></span></span><font face="Times New Roman"><span lang="X-NONE" dir="ltr">Self- etch</span><span dir="rtl"></span><span dir="rtl"></span></font><span lang="AR-SA"><span dir="rtl"></span><span dir="rtl"></span> در داخل کانال سمان شدند . در گروه </span><span lang="X-NONE" dir="ltr">C</span><span dir="rtl"></span><span dir="rtl"></span><span lang="AR-SA"><span dir="rtl"></span><span dir="rtl"></span><font face="B Nazanin"><span> </span>پستها با سمان رزینی (</font></span><font face="Times New Roman"><span lang="X-NONE" dir="ltr">BisCem </span><span dir="rtl"></span><span dir="rtl"></span><span lang="FA"><span dir="rtl"></span><span dir="rtl"></span>)</span><span lang="X-NONE" dir="ltr">Bisco</span><span dir="rtl"></span><span dir="rtl"></span></font><span lang="AR-SA"><span dir="rtl"></span><span dir="rtl"></span><font face="B Nazanin"><span> </span>و در گروه </font></span><span lang="X-NONE" dir="ltr">D</span><span dir="rtl"></span><span dir="rtl"></span><span lang="AR-SA"><span dir="rtl"></span><span dir="rtl"></span> با سمان رزینی<font face="B Nazanin"><span> </span>(</font></span><font face="Times New Roman"><span lang="X-NONE" dir="ltr">Maxcem Elite (Kerr</span><span dir="rtl"></span><span dir="rtl"></span></font><span lang="AR-SA"><span dir="rtl"></span><span dir="rtl"></span> مطابق دستور کارخانه در کانال دندان سمان شدند. تمام نمونه ها به مدت 40 ثانیه لایت کیور و سپس در آکریل مانت و با دیسک به 2 قطعه<font face="B Nazanin"><span> </span>4 میلیمتری تقسیم شدند و <span> </span>از هر دندان 2 نمونه بدست آمد. توسط<span> </span>دستگاه </font></span><font face="Times New Roman"><span lang="X-NONE" dir="ltr">Instron</span><span dir="rtl"></span><span dir="rtl"></span></font><span lang="X-NONE"><span dir="rtl"></span><span dir="rtl"></span> </span><span lang="AR-SA">تست </span><font face="Times New Roman"><span lang="X-NONE" dir="ltr">Push-out</span><span dir="rtl"></span><span dir="rtl"></span></font><span lang="AR-SA"><span dir="rtl"></span><span dir="rtl"></span> برای هر نمونه انجام شد تا شکست رخ دهد. از تقسیم مقدار نیرو بر سطح باند شده، استحکام باند برشی به مگاپاسکال بدست آمد.<font face="B Nazanin"><span> </span>سپس آزمون های آماری </font></span><font face="Times New Roman"><span lang="X-NONE" dir="ltr">ANOVA</span><span dir="rtl"></span><span dir="rtl"></span></font><span lang="X-NONE"><span dir="rtl"></span><span dir="rtl"></span> </span><font face="Times New Roman"><span lang="X-NONE" dir="ltr">one way</span><span dir="rtl"></span><span dir="rtl"></span></font><span lang="AR-SA"><span dir="rtl"></span><span dir="rtl"></span><font face="B Nazanin"><span> </span>و </font></span><font face="Times New Roman"><span lang="X-NONE" dir="ltr">Dunnett</span><span dir="rtl"></span><span dir="rtl"></span></font><span lang="AR-SA"><span dir="rtl"></span><span dir="rtl"></span> جهت آنالیز یافته‌ها انجام شد.</span></font></h5><h5 align="right" style="text-align: justify margin: 0cm 0cm 0pt unicode-bidi: embed direction: rtl" dir="rtl"><font size="2"><span>یافته‌ها: میانگین استحکام باند برشی در گروه‌های مورد آزمایش بر حسب مگاپاسکال به شرح زیر بدست آمد،گروه</span><span dir="ltr"></span><span dir="ltr"></span><span lang="AR-SA" dir="ltr"><span dir="ltr"></span><span dir="ltr"></span> </span><font face="Times New Roman"><span dir="ltr">A</span><span lang="X-NONE" dir="ltr"><span> </span></span><span dir="rtl"></span><span dir="rtl"></span></font><span lang="AR-SA"><span dir="rtl"></span><span dir="rtl"></span>77/3</span><span lang="AR-SA"><font face="Times New Roman">±</font></span><span lang="FA">6</span><span lang="AR-SA">/12 گروه</span><span dir="ltr"></span><span dir="ltr"></span><span lang="X-NONE" dir="ltr"><span dir="ltr"></span><span dir="ltr"></span><span><font face="Times New Roman"> </font></span></span><span dir="ltr">B</span><font face="Times New Roman"><span lang="X-NONE" dir="ltr"><span> </span></span><span dir="rtl"></span><span dir="rtl"></span></font><span lang="AR-SA"><span dir="rtl"></span><span dir="rtl"></span>18/4</span><span lang="AR-SA"><font face="Times New Roman">±</font></span><span lang="AR-SA">61/14</span><font face="Times New Roman"><span lang="AR-SA"> </span><span dir="ltr"></span><span dir="ltr"></span><span lang="AR-SA" dir="ltr"><span dir="ltr"></span><span dir="ltr"></span><span> </span></span></font><span lang="AR-SA">گروه</span><span dir="ltr">C </span><span dir="rtl"></span><span dir="rtl"></span><span><span dir="rtl"></span><span dir="rtl"></span><font face="B Nazanin"><span> </span><span> </span><span lang="AR-SA">49/2</span></font></span><span lang="AR-SA"><font face="Times New Roman">±</font></span><span lang="AR-SA">26/7 </span><span dir="ltr"></span><span dir="ltr"></span><span lang="AR-SA" dir="ltr"><span dir="ltr"></span><span dir="ltr"></span><span><font face="Times New Roman"> </font></span></span><span dir="rtl"></span><span dir="rtl"></span><span lang="AR-SA"><span dir="rtl"></span><span dir="rtl"></span><font face="B Nazanin"><span> </span>و </font></span><span dir="ltr"></span><span dir="ltr"></span><span lang="AR-SA" dir="ltr"><span dir="ltr"></span><span dir="ltr"></span><span><font face="Times New Roman"> </font></span></span><span lang="AR-SA">گروه<span><font face="B Nazanin"> </font></span></span><span dir="ltr"></span><span dir="ltr"></span><span lang="X-NONE" dir="ltr"><span dir="ltr"></span><span dir="ltr"></span><span><font face="Times New Roman"> </font></span></span><span dir="ltr">D</span><span dir="rtl"></span><span dir="rtl"></span><span lang="FA"><span dir="rtl"></span><span dir="rtl"></span>،</span><span dir="ltr"></span><span dir="ltr"></span><span lang="X-NONE" dir="ltr"><span dir="ltr"></span><span dir="ltr"></span><span><font face="Times New Roman"> </font></span></span><span dir="rtl"></span><span dir="rtl"></span><span lang="AR-SA"><span dir="rtl"></span><span dir="rtl"></span><font face="B Nazanin"><span> </span>17/3</font></span><span lang="AR-SA"><font face="Times New Roman">±</font></span><span lang="AR-SA">68/6<font face="B Nazanin"><span> </span>آزمون آماری<span> </span>نشان داد که چهار گروه از نظر<span> </span>میزان استحکام باند برشی تفاوت معنی دار آماری دارند. (001/0</font></span><span dir="ltr"></span><span dir="ltr"></span><span lang="X-NONE" dir="ltr"><span dir="ltr"></span><span dir="ltr"></span>(P= </span><span dir="rtl"></span><span dir="rtl"></span><span lang="X-NONE"><span dir="rtl"></span><span dir="rtl"></span><span><font face="B Nazanin"> </font></span></span><span lang="AR-SA">از سوی دیگر ملاحظه گردید که استحکام باند حاصل از کاربرد سمان‌های گروه</span><span dir="ltr"></span><span dir="ltr"></span><span lang="X-NONE" dir="ltr"><span dir="ltr"></span><span dir="ltr"></span><font face="Times New Roman"><span> </span>A</font></span><span lang="AR-SA">و</span><span lang="X-NONE" dir="ltr">B </span><span dir="rtl"></span><span dir="rtl"></span><span lang="X-NONE"><span dir="rtl"></span><span dir="rtl"></span><span><font face="B Nazanin"> </font></span></span><span lang="AR-SA">با تکنیک<font face="B Nazanin"><span> </span>باندینگ</font></span><span dir="ltr"></span><span dir="ltr"></span><span lang="X-NONE" dir="ltr"><span dir="ltr"></span><span dir="ltr"></span><span><font face="Times New Roman"> </font></span></span><font face="Times New Roman"><span lang="X-NONE" dir="ltr">Self- etch</span><span lang="X-NONE" dir="ltr"> </span></font><span lang="AR-SA">از لحاظ آماری متفاوت نمی‌باشد. همچنین سمانهای</span><span dir="ltr"></span><span dir="ltr"></span><span lang="AR-SA" dir="ltr"><span dir="ltr"></span><span dir="ltr"></span> </span><font face="Times New Roman"><span lang="X-NONE" dir="ltr">Self-adhesive</span><span lang="X-NONE" dir="ltr"> </span></font><span lang="AR-SA">گروه</span><font face="Times New Roman"><span lang="X-NONE" dir="ltr">C</span><span lang="X-NONE" dir="ltr"> </span></font><span lang="AR-SA">و</span><font face="Times New Roman"><span lang="X-NONE" dir="ltr">D</span><span lang="X-NONE" dir="ltr"><span> </span></span><span dir="rtl"></span><span dir="rtl"></span></font><span lang="X-NONE"><span dir="rtl"></span><span dir="rtl"></span><span><font face="B Nazanin"> </font></span></span><span lang="AR-SA">تفاوت معناداری در استحکام باند نشان ندادند</span><span dir="ltr"></span><span dir="ltr"></span><span lang="X-NONE" dir="ltr"><span dir="ltr"></span><span dir="ltr"></span>.</span><span dir="rtl"></span><span dir="rtl"></span><span lang="X-NONE"><span dir="rtl"></span><span dir="rtl"></span> </span><span lang="AR-SA">در حالیکه سمانهای گروه<span><font face="B Nazanin"> </font></span></span><font face="Times New Roman"><span lang="X-NONE" dir="ltr">A</span><span lang="FA">و</span><span lang="X-NONE" dir="ltr">B</span><span dir="rtl"></span><span dir="rtl"></span></font><span lang="AR-SA"><span dir="rtl"></span><span dir="rtl"></span> با تکنیک a</span></font><font size="3"><font size="2"><span><span><font face="B Nazanin"> </font></span></span><font face="Times New Roman"><span lang="X-NONE" dir="ltr">Self-etch</span><span dir="rtl"></span><span dir="rtl"></span></font><span lang="AR-SA"><span dir="rtl"></span><span dir="rtl"></span> استفاده کنیم استحکام باند قوی تری نسبت به سمان های رزینی </span><font face="Times New Roman"><span lang="X-NONE" dir="ltr">self-adhesive</span><span dir="rtl"></span><span dir="rtl"></span></font></font><span><font size="2"><span dir="rtl"></span><span dir="rtl"></span><span><font face="B Nazanin"> </font></span></font><font size="2">بدست می آوریم.</font><p></p></span></font></h5> <p align="left"> <strong> Abstract: </strong></p><p align="left"> <strong> </strong></p><p align="left"> <strong> Background and aim: </strong>Inadequate bond strength of resin cements to dentin appears to be a typical cause of failure in retention of fiber posts. In restoring endodontically treated teeth with fiber posts the cement-dentin interface is the weakest link. This study aims to compare the effect of self-etch and self-adhesive resin cements on shear bond strength of fiber posts to dentin. </p><p align="left"> </p><p align="left"> <strong> Materials and methods: </strong>This in vitro experimental study included 40 mandibular premolars with a single canal. All samples received standardized endodontic treatment after meeting the inclusion criteria. They were randomly divided into four groups and a post space was prepared in each sample. A size two Match post RTD fiber post was cemented into each sample using CoreCem (RTD) in group A, Panavia F2 (Kuraray) in group B, Bis Cem (Bisco) in group C and Maxcem Elite (Kerr) in group D as cementing agents. All samples were then cut into two pieces. Each specimen was loaded with equal force using a Universal Testing Machine. The load was applied from the apical to the coronal portion of each sample until fracture occurred. The mean shear bond strength for two each group was recorded and statistically analyzed with ANOVA(one way) and Dunnett’s tests using SPSS. </p><p align="left"> </p><p align="left"> <strong> Results: </strong>The mean shear bond strength was found to be as follows: Group A: (12.66 ±3.77) MPa Group B: (14.61±4.18) MPa Group C: (7.26±2.49) MPa Group D:( 6.68±3.17 )Mpa ,Significant difference was demonstrated between shear bond strength of four groups (P=0.001). Mean bond strengths of resin cements in group A and B were not statistically different. Same results were shown when comparing cements in group C and D. However, cements in group A and B (self-etch) provided stronger bonds to dentin compared to group C and D (self-adhesive), the difference being statistically significant (P<0.05). </p><p align="left"> </p><p align="left"> <strong> Conclusion: </strong>The use of self-etch resin cements results in higher shear bond strength to dentin compared to self-adhesive resin cements. </p><p align="left"> </p><p align="left"> </p> دنتین باندینگ، پرایمر سلف اچ، سمان‌های رزینی، ادهزیو سلف کیور Keywords: Shear bond strength, self-etch bonding system, self-adhesive resin cement, fiber post 111 117 http://jrds.ir/browse.php?a_code=A-10-561-2&slc_lang=fa&sid=1 N Rahshenas نینا ره شناس 10031947532846004628 10031947532846004628 No M Sameie محمد سامعی 10031947532846004629 10031947532846004629 No P Salahi Hengamehjoo پناه صلاحی هنگامه جو panahsalahi@yahoo.com 10031947532846004630 10031947532846004630 Yes S Banava سپیده بانوا 10031947532846004631 10031947532846004631 No