fa بررسی میزان جابه‌جایی کانال ریشه دندان توسط سیستم‌های چرخشی OneShape و Neolix در ریشه مزیال مولر‌های اول مندیبل توسط توموگرافی کامپیوتری با اشعه مخروطی دندانپزشكي- اندودنتيكس Endodontics پژوهشي Original <span style="font-family:Tahoma;"><span style="font-size:12pt"><span style="direction:rtl"><span style="unicode-bidi:embed"><span ms="" trebuchet=""><span style="color:black"><b><span lang="AR-SA" style="font-size:10.0pt"><span b="" nazanin=""><span style="color:#274cc3"><span style="position:relative"><span style="top:-1.0pt"><span style="letter-spacing:.1pt">سابقه و هدف:</span></span></span></span></span></span></b>&nbsp;<span lang="AR-SA" style="font-size:10.0pt"><span b="" nazanin="">یکی از مهم‌ترین مراحل درمان ریشه، آماده‌سازی صحیح و کامل کانال ریشه است. هدف از انجام این مطالعه</span></span> <span lang="AR-SA" style="font-size:10.0pt"><span b="" nazanin="">مقایسه‌ی میزان جابه‌جایی کانال ریشه دندان (ترانسپورتیشن) در دو فایل نیکل تیتانیومی</span></span> <span dir="LTR" style="font-size:8.0pt"><span new="" roman="" times="">OneShape</span></span> <span lang="AR-SA" style="font-size:10.0pt"><span b="" nazanin="">و</span></span> <span dir="LTR" style="font-size:8.0pt"><span new="" roman="" times="">Neolix</span></span><span lang="AR-SA" style="font-size:10.0pt"><span b="" nazanin=""> است</span></span><span dir="LTR" style="font-size:10.0pt"><span new="" roman="" times="">.</span></span><span lang="AR-SA" style="font-size:10.0pt"><span style="font-family:"B Nazanin""></span></span></span></span></span></span></span><br> <span style="font-size:12pt"><span style="direction:rtl"><span style="unicode-bidi:embed"><span ms="" trebuchet=""><span style="color:black"><b><span lang="AR-SA" style="font-size:10.0pt"><span b="" nazanin=""><span style="color:#274cc3"><span style="position:relative"><span style="top:-1.0pt"><span style="letter-spacing:.15pt">مواد و روش‌‌ها</span></span></span></span></span></span></b><b><span b="" lang="AR-SA" nazanin=""><span style="color:#274cc3"><span style="position:relative"><span style="top:-1.0pt"><span style="letter-spacing:.15pt">:</span></span></span></span></span></b><b>&nbsp;</b><span lang="AR-SA" style="font-size:10.0pt"><span b="" nazanin="">این مطالعه آزمایشگاهی بر روی 30 دندان مولر اول مندیبل انسان با انحنای 25 تا 35 درجه که به دلایل پریودنتال کشیده شده بودند انجام شده است. نمونه‌ها به صورت تصادفی به دو گروه (هر گروه 15 عدد) تقسیم شدند. از دندان‌ها پیش از مداخله اسکن</span></span> <span dir="LTR" style="font-size:8.0pt"><span new="" roman="" times="">CBCT</span></span><span lang="AR-SA" style="font-size:10.0pt"><span b="" nazanin=""> تهیه شد. سپس دندان‌های هر گروه توسط فایل موردنظر</span></span> <span dir="LTR" style="font-size:8.0pt"><span new="" roman="" times="">OneShape</span></span> <span lang="AR-SA" style="font-size:10.0pt"><span b="" nazanin="">و</span></span> <span dir="LTR" style="font-size:8.0pt"><span new="" roman="" times="">Neolix</span></span> <span lang="AR-SA" style="font-size:10.0pt"><span b="" nazanin="">طبق دستور شرکت سازنده آماده شدند. سپس بار دیگر از دندان‌ها در همان زاویه اسکن</span></span> <span dir="LTR" style="font-size:8.0pt"><span new="" roman="" times="">CBCT</span></span> <span lang="AR-SA" style="font-size:10.0pt"><span b="" nazanin="">تهیه شد. میزان ترانسپورتیشن در دو فاصله‌ی سه و نه میلی‌متری در بعد مزیودیستالی از اپکس آنالیز شدند. زمان آماده‌سازی هر دندان نیز توسط کرنومتر ثبت شد</span></span><span lang="FA" style="font-size:10.0pt"><span b="" nazanin="">. داده‌های دو گروه مطالعه توسط آزمون </span></span><span dir="LTR" style="font-size:8.0pt"><span new="" roman="" times="">t</span></span><span lang="FA" style="font-size:10.0pt"><span b="" nazanin=""> مستقل آنالیز شدند</span></span> <span lang="FA" style="font-size:10.0pt"><span b="" nazanin="">(</span></span><span lang="FA" style="font-size:10.0pt"><span b="" nazanin="">0/05=</span></span><span lang="FA" style="font-size:10.0pt"><span cambria="">&alpha;</span></span><span lang="FA" style="font-size:10.0pt"><span b="" nazanin="">)</span></span><span dir="LTR" style="font-size:10.0pt"><span new="" roman="" times="">.</span></span><span lang="FA" style="font-size:10.0pt"><span style="font-family:"B Nazanin""></span></span></span></span></span></span></span><br> <span style="font-size:12pt"><span style="direction:rtl"><span style="unicode-bidi:embed"><span ms="" trebuchet=""><span style="color:black"><b><span lang="AR-SA" style="font-size:10.0pt"><span b="" nazanin=""><span style="color:#274cc3"><span style="position:relative"><span style="top:-1.0pt"><span style="letter-spacing:.2pt">یافته‌ها</span></span></span></span></span></span></b><b><span b="" lang="AR-SA" nazanin=""><span style="color:#274cc3"><span style="position:relative"><span style="top:-1.0pt"><span style="letter-spacing:.2pt">:</span></span></span></span></span></b>&nbsp;<span lang="AR-SA" style="font-size:10.0pt"><span b="" nazanin="">میانگین ترانسپورت در فاصله‌ی سه میلی‌متری از اپکس در گروه</span></span> <span dir="LTR" style="font-size:8.0pt"><span new="" roman="" times="">OneShape</span></span> <span lang="AR-SA" style="font-size:10.0pt"><span b="" nazanin="">و</span></span> <span dir="LTR" style="font-size:8.0pt"><span new="" roman="" times="">Neolix</span></span> <span lang="AR-SA" style="font-size:10.0pt"><span b="" nazanin="">به ترتیب 0/19 و 0/1 میلی‌متر بود. میانگین ترانسپورتیشن در فاصله‌ی نه میلی‌متری از اپکس به ترتیب در گروه‌های </span></span><span dir="LTR" style="font-size:8.0pt"><span new="" roman="" times="">OneShape </span></span><span lang="AR-SA" style="font-size:10.0pt"><span b="" nazanin="">و</span></span> <span dir="LTR" style="font-size:10.0pt"><span new="" roman="" times="">0.2&nbsp;</span></span><span dir="LTR" style="font-size:8.0pt"><span new="" roman="" times="">Neolix </span></span><span dir="LTR" style="font-size:10.0pt"><span new="" roman="" times=""> </span></span><span lang="AR-SA" style="font-size:10.0pt"><span b="" nazanin="">و 0/1 میلی‌متر بود. از لحاظ آماری تفاوت معناداری در میزان ترانسپورتیشن بین دو گروه در فاصله‌ی سه میلی‌متری</span></span> <span lang="FA" style="font-size:10.0pt"><span b="" nazanin="">(</span></span><span lang="FA" style="font-size:10.0pt"><span b="" nazanin="">0/055=</span></span><span dir="LTR" style="font-size:10.0pt"><span cambria="">p</span></span><span lang="FA" style="font-size:10.0pt"><span b="" nazanin="">)</span></span> <span lang="AR-SA" style="font-size:10.0pt"><span b="" nazanin="">و نه میلی‌متری </span></span><span lang="FA" style="font-size:10.0pt"><span b="" nazanin="">(</span></span><span lang="FA" style="font-size:10.0pt"><span b="" nazanin="">0/39=</span></span><span dir="LTR" style="font-size:10.0pt"><span cambria="">p</span></span><span lang="FA" style="font-size:10.0pt"><span b="" nazanin="">)</span></span><span lang="AR-SA" style="font-size:10.0pt"><span b="" nazanin=""> وجود نداشت. میانگین زمان آماده‌سازی در گروه</span></span> <span dir="LTR" style="font-size:8.0pt"><span new="" roman="" times="">OneShape</span></span> <span lang="AR-SA" style="font-size:10.0pt"><span b="" nazanin="">بیشتر از</span></span> <span dir="LTR" style="font-size:8.0pt"><span new="" roman="" times="">Neolix</span></span> <span lang="AR-SA" style="font-size:10.0pt"><span b="" nazanin="">بود اما از لحاظ آماری تفاوت معناداری را نشان نداد</span></span><span lang="FA" style="font-size:10.0pt"><span b="" nazanin="">(</span></span><span lang="FA" style="font-size:10.0pt"><span b="" nazanin="">0/37=</span></span><span dir="LTR" style="font-size:10.0pt"><span cambria="">p</span></span><span lang="FA" style="font-size:10.0pt"><span b="" nazanin="">)</span></span><span lang="AR-SA" style="font-size:10.0pt"><span b="" nazanin="">.</span></span></span></span></span></span></span><br> <b><span dir="RTL" lang="AR-SA" style="font-size:10.0pt"><span b="" nazanin=""><span style="color:#274cc3"><span style="position:relative"><span style="top:-1.0pt"><span style="letter-spacing:.2pt">نتیجه‌گیری:</span></span></span></span></span></span>&nbsp;</b><span dir="RTL" lang="AR-SA" style="font-size:10.0pt"><span b="" nazanin=""><span style="color:black">هر دو فایل</span></span></span> <span style="font-size:8.0pt"><span new="" roman="" times=""><span style="color:black">Neolix</span></span></span> <span dir="RTL" lang="AR-SA" style="font-size:10.0pt"><span b="" nazanin=""><span style="color:black">و</span></span></span> <span style="font-size:8.0pt"><span new="" roman="" times=""><span style="color:black">OneShape</span></span></span> <span dir="RTL" lang="AR-SA" style="font-size:10.0pt"><span b="" nazanin=""><span style="color:black">با حفظ انحنای کانال ترانسپورتیشن اپیکال چشم</span></span></span><span dir="RTL" lang="FA" style="font-size:10.0pt"><span b="" nazanin=""><span style="color:black">‌</span></span></span><span dir="RTL" lang="AR-SA" style="font-size:10.0pt"><span b="" nazanin=""><span style="color:black">گیری نداشتند و برای شکل‌دهی کانال مناسب بودند</span></span></span></span> <span style="font-size:14px;"><span style="font-family:Tahoma;"><span style="unicode-bidi:embed"><span ms="" trebuchet=""><span style="color:black"><b><span lt="" optima="" std=""><span style="color:#274cc3"><span style="letter-spacing:.15pt">Background</span></span></span></b><span lt="" optima="" std=""><span style="color:#274cc3"><span style="letter-spacing:.15pt"> <b>and</b> <b>Objective</b>: </span></span></span>One of the most important stages of root canal treatment is the correct and complete preparation of the root canal. This study aimed to compare the amount of canal transportation in two nickel titanium files, OneShape and Neolix.</span></span></span><br> <span style="unicode-bidi:embed"><span ms="" trebuchet=""><span style="color:black"><b><span lt="" optima="" std=""><span style="color:#274cc3">Materials</span></span></b><span lt="" optima="" std=""><span style="color:#274cc3"> <b>and</b> <b>Methods</b>: </span></span>In this experimental study, 30 extracted mandibular first molar teeth with 25-35-degree curvature were selected for periodontal reasons and randomly divided into two groups (n=15 each). A cone beam computed tomography (CBCT) scan was obtained from the teeth before the intervention. Followingly, the teeth of each group were prepared by the desired file (OneShape and Neolix) according to the manufacturer&#39;s instructions. Another CBCT scan was obtained from the teeth at the same angle. The amount of transportation was analyzed from the mesiodistal aspect at two distances of 3 and 9 mm from the apex. The preparation time of each tooth was also recorded by a chronometer. Data were analyzed by independent t-tests (<span dir="RTL" lang="FA"><span new="" roman="" times="">&alpha;</span></span>=0.05).</span></span></span><br> <span style="unicode-bidi:embed"><span ms="" trebuchet=""><span style="color:black"><b><span lt="" optima="" std=""><span style="color:#274cc3"><span style="letter-spacing:.15pt">Results</span></span></span></b><span lt="" optima="" std=""><span style="color:#274cc3"><span style="letter-spacing:.15pt">:</span></span></span> The mean transport at a distance of 3 mm from the apex in the OneShape and Neolix groups was 0.19 and 0.1 mm, respectively. The mean transport at a distance of 9 mm from the apex was 0.2 and 0.1 mm in the OneShape and Neolix groups, respectively. Statistically, there was no significant difference in the amount of transportation between the two groups at the distance of 3 mm (P=0.055) and 9 mm (P=0.39). The mean preparation time was longer in the OneShape group than in the Neolix one; however, it did not show a statistically significant difference (P=0.73).</span></span></span></span></span><br> <span style="font-size:12pt"><span style="unicode-bidi:embed"><span ms="" style="font-family:" trebuchet=""><span style="color:black"><span style="font-size:14px;"><span style="font-family:Tahoma;"><b><span lt="" optima="" std=""><span style="color:#274cc3"><span style="letter-spacing:-.1pt">Conclusion</span></span></span></b><span lt="" optima="" std=""><span style="color:#274cc3"><span style="letter-spacing:-.1pt">:</span></span></span> </span></span><span style="font-size:9.0pt"><span style="font-family:Optima"><span style="font-size:14px;"><span style="font-family:Tahoma;">Both Neolix and OneShape files can maintain the curvature of the canal and are suitable for curved canals in terms of shaping ability.</span></span> </span></span></span></span></span></span><br> <span style="font-size:12pt"><span style="unicode-bidi:embed"><span ms="" style="font-family:" trebuchet=""><span style="color:black"><span style="font-size:9.0pt"><span style="font-family:Optima"></span></span></span></span></span></span><br> &nbsp; توموگرافی کامپیوتری با اشعه مخروطی, جابه‌جایی کانال ریشه, درمان کانال ریشه, فایل چرخشی Cone Beam Computed Tomography, Root Canal Therapy, Rotary Files, Transportation 149 156 http://sjh.umsha.ac.ir/browse.php?a_code=A-11-2502-5&slc_lang=fa&sid=1 Amir Maghsoudlourad امیر مقصودلو راد 100319475328460023624 0009-0007-4103-2171 No Department of Endodontics, School of Dentistry, Golestan University of Medical Sciences, Gorgan, Iran بخش اندودنتیکس، دانشکده دندان‌پزشکی، دانشگاه علوم پزشکی گلستان، گرگان، ایران Marjan Kazeminia مرجان کاظمی نیا 100319475328460023625 100319475328460023625 No Department of Radiology, School of Dentistry, Golestan University of Medical Sciences, Gorgan, Iran بخش رادیولوژِی، دانشکده دندان‌پزشکی، دانشگاه علوم پزشکی گلستان، گرگان، ایران Maryam Rasooli مریم رسولی rasoolimaryam93@gmail.com 100319475328460023626 0009-0005-8727-2686 Yes Department of Endodontics, School of Dentistry, Hamadan University of Medical Sciences, Hamadan, Iran بخش اندودنتیکس، دانشکده دندان‌پزشکی، دانشگاه علوم پزشکی همدان، همدان، ایران