The Journal of Shahid Sadoughi University of Medical Sciences
مجله علمي پژوهشي دانشگاه علوم پزشكي شهید صدوقی يزد
JSSU
Medical Sciences
http://jssu.ssu.ac.ir
20
journal20
2228-5741
2228-5733
fa
jalali
1402
7
1
gregorian
2023
10
1
31
7
online
1
fulltext
fa
بررسی میزان ریزسختی و ریزنشت CEM cement پس از اضافه کردن آب به سمان نیمه ست شده
Evaluation of Microhardness and Microleakage of CEM Cement after Adding Water to Semi Setting Cement
اندودنتیکس
Endodontics
پژوهشي
Original article
<div style="text-align: justify;"><span style="font-size:11pt"><span style="line-height:18.0pt"><span style="direction:rtl"><span style="unicode-bidi:embed"><span calibri="" style="font-family:"><b><span lang="AR-SA" style="font-size:12.0pt"><span b="" nazanin="" style="font-family:">مقدمه:</span></span></b> <span lang="FA" style="font-size:12.0pt"><span b="" nazanin="" style="font-family:">ریزنشت از مهم ترین عوامل در شکست درمان سیستم کانال ریشه محسوب میگردد. ریزسختی از جمله خصوصیات فیزیکی بیوسرامیکها میباشد که میتواند تحت تاثیر فاکتورهای محیطی مختلف مانند رطوبت محیط قرار بگیرد. مطالعه حاضر با هدف بررسی تاثیر اضافه کردن آب به سمان نیمه ست شده بر روی میزان ریزسختی و ریزنشت </span></span><span dir="LTR" new="" roman="" style="font-family:" times="">CEM cement</span><span lang="FA" style="font-size:12.0pt"><span b="" nazanin="" style="font-family:"> انجام شد.</span></span><span lang="FA" style="font-size:12.0pt"><span style="font-family:"B Nazanin""></span></span></span></span></span></span></span><br>
<span style="font-size:11pt"><span style="line-height:18.0pt"><span style="direction:rtl"><span style="unicode-bidi:embed"><span calibri="" style="font-family:"><b><span lang="AR-SA" style="font-size:12.0pt"><span b="" nazanin="" style="font-family:">روش بررسی:</span></span></b> <span lang="FA" style="font-size:12.0pt"><span b="" nazanin="" style="font-family:">در این مطالعه آزمایشگاهی </span></span><span lang="FA" style="font-size:12.0pt"><span b="" nazanin="" style="font-family:">تعداد50 دندان تک</span></span> <span lang="FA" style="font-size:12.0pt"><span b="" nazanin="" style="font-family:">ریشه انتخاب گردید. دندانها از ناحیه </span></span><span dir="LTR" new="" roman="" style="font-family:" times="">CEJ</span><span lang="FA" style="font-size:12.0pt"><span b="" nazanin="" style="font-family:"> و همچنین 3 میلیمتر اپیکالی ریشهها با فرز قطع شدند و بلوکهای عاجی به ارتفاع 5 میلیمتر تهیه شد. پیزوریمر شماره 2 برای آماده سازی کانال استفاده شد. دندانها به دو گروه 23 تایی مورد و دوگروه 2 تایی کنترل مثبت و منفی تقسیم شدند</span></span><span dir="LTR" new="" roman="" style="font-family:" times="">.</span><span lang="FA" style="font-size:12.0pt"><span b="" nazanin="" style="font-family:"> در گروه اول </span></span><span dir="LTR" new="" roman="" style="font-family:" times="">CEM-Cement</span><span style="font-size:12.0pt"><span b="" nazanin="" style="font-family:"> تهیه شده مطابق با دستور کارخانه سازنده، در کانال قرار گرفت. در گروه دوم بعد از اضافه کردن آب به مخلوط نیمه ست شده </span></span><span dir="LTR" new="" roman="" style="font-family:" times="">CEM-Cement</span><span lang="FA" style="font-size:12.0pt"><span b="" nazanin="" style="font-family:">، کانال با سمان مورد نظر پرشد. نمونهها برای 3 روز داخل رنگ متیلن بلو1% قرار گرفتند و سپس برش داده شدند. میزان ریزنشت زیر استریومیکروسکوپ ثبت شد. ریز سختی نمونهها بعد از مانت در رزین آکریلی، با دستگاه</span></span><span dir="LTR" new="" roman="" style="font-family:" times="">Vickers </span><span lang="FA" style="font-size:12.0pt"><span b="" nazanin="" style="font-family:"> اندازهگیری شد. آنالیز آماری با استفاده از نرمافزار</span></span><span dir="LTR" new="" roman="" style="font-family:" times="">version 16 </span> <span dir="LTR" new="" roman="" style="font-family:" times="">SPSS</span><span lang="FA" style="font-size:12.0pt"><span b="" nazanin="" style="font-family:"> و آزمون </span></span><span dir="LTR" new="" roman="" style="font-family:" times=""> ,Mann-Whitney</span> <span dir="LTR" new="" roman="" style="font-family:" times="">Kruskal-Wallis</span><span lang="FA" style="font-size:12.0pt"><span b="" nazanin="" style="font-family:"> و </span></span><span dir="LTR" new="" roman="" style="font-family:" times="">one-way ANOVA</span><span style="font-size:12.0pt"><span b="" nazanin="" style="font-family:"> صورت گرفت.</span></span><span lang="FA" style="font-size:12.0pt"><span style="font-family:"B Nazanin""></span></span></span></span></span></span></span><br>
<span style="font-size:11pt"><span style="line-height:18.0pt"><span style="direction:rtl"><span style="unicode-bidi:embed"><span calibri="" style="font-family:"><b><span lang="AR-SA" style="font-size:12.0pt"><span b="" nazanin="" style="font-family:">نتایج:</span></span></b> <span lang="FA" style="font-size:12.0pt"><span b="" nazanin="" style="font-family:">بین دو گروه مورد مطالعه از نظر میزان ریز نشت (0/008></span></span><span dir="LTR" new="" roman="" style="font-family:" times="">P-Value</span><span lang="FA" style="font-size:12.0pt"><span b="" nazanin="" style="font-family:">) و ریزسختی </span></span><span dir="LTR" new="" roman="" style="font-family:" times="">)</span><span lang="FA" style="font-size:12.0pt"><span b="" nazanin="" style="font-family:">0/001></span></span><span dir="LTR" new="" roman="" style="font-family:" times="">(P-Value</span><span lang="FA" style="font-size:12.0pt"><span b="" nazanin="" style="font-family:"> تفاوت آماری معناداری دیده شد.</span></span> <span dir="LTR" style="font-size:10.0pt"><span style="font-family:"Times New Roman",serif"></span></span></span></span></span></span></span><br>
<span style="font-size:11pt"><span style="line-height:18.0pt"><span style="direction:rtl"><span style="unicode-bidi:embed"><span calibri="" style="font-family:"><b><span lang="AR-SA" style="font-size:12.0pt"><span b="" nazanin="" style="font-family:">نتیجهگیری:</span></span></b> <span lang="FA" style="font-size:12.0pt"><span b="" nazanin="" style="font-family:">طبق نتایج مطالعه حاضر اضافه کردن آب به سمان نیمه ست شده نه تنها تاثیر بسیار بد کلینیکی ندارد بلکه حتی ممکن است سیل را افزایش دهد.</span></span><span lang="FA" style="font-size:12.0pt"><span style="font-family:"B Nazanin""></span></span></span></span></span></span></span><br>
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<div style="text-align: justify;"><span style="font-size:11pt"><span style="line-height:18.0pt"><span calibri="" style="font-family:"><b><span new="" roman="" style="font-family:" times="">Introduction:</span></b> <span new="" roman="" style="font-family:" times="">Microleakage is one of the most important factors in the failure of root canal treatment. Microhardness is one of the physical properties of bioceramics that can be affected by various environmental factors such as enviromental humidity. The aim of this study was to evaluation the effect of adding water to semi-setting cement on the microhardness and microleakage of CEM cement.</span><span style="font-family:"Times New Roman",serif"></span></span></span></span><br>
<span style="font-size:11pt"><span style="line-height:18.0pt"><span calibri="" style="font-family:"><b><span new="" roman="" style="font-family:" times="">Methods:</span></b> <span new="" roman="" style="font-family:" times="">50 single-rooted teeth were selected. Teeth were cut from the CEJ region and the apical 3 mm of the root were trimmed and dentinal blocks with 5 mm height were prepared </span><span new="" roman="" style="font-family:" times="">Peeso reamer size 2 </span><span new="" roman="" style="font-family:" times="">was used to prepare the canal. The teeth were divided into two groups of 23 cases and two groups of 2 positive and negative controls. In the first group, CEM-cement prepared according to the manufacturer's instructions was placed in the canal. In the second group, after adding water to the semi-setting CEM cement mixture, the canal was filled with this cement. The samples were placed in 1% methylene blue for 3 days and then cut. Microleakage was recorded under a stereomicroscope. The microhardness of the samples was measured with Vickers device after mounting in acrylic resin. Statistical analysis was performed using SPSS19 software and Mann-Whitney Kruskal-Wallis and one-way ANOVA tests.</span><span style="font-family:"Times New Roman",serif"></span></span></span></span><br>
<span style="font-size:11pt"><span style="line-height:18.0pt"><span calibri="" style="font-family:"><b><span new="" roman="" style="font-family:" times="">Results:</span></b><b> </b><span new="" roman="" style="font-family:" times="">There was a statistically significant difference between the two groups in microleakage (P-Value <0.008) and microhardness (P-Value <0.001).</span><span style="font-family:"Times New Roman",serif"></span></span></span></span><br>
<span style="font-size:11pt"><span style="line-height:18.0pt"><span calibri="" style="font-family:"><b><span new="" roman="" style="font-family:" times="">Conclusion:</span></b><b> </b><span new="" roman="" style="font-family:" times="">According to the results of the present study, adding water to the semi-setting CEM cement not only does have a very bad clinical effect, but also may even increase sealling ability.</span><span style="font-family:"Times New Roman",serif"></span></span></span></span><br>
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ریزسختی, ریزنشت, CEM-Cement
Microhardness, Microleakage, CEM-Cement.
6844
6853
http://jssu.ssu.ac.ir/browse.php?a_code=A-10-4681-1&slc_lang=fa&sid=1
Mehdi
Tabrizizadeh
مهدی
تبریزیزاده
tabrizizadeh@gmail.com