مقایسه‌ی مقاومت در برابر خستگی دوره‌ای فایل‌های روتاری Pronix Gold، Pronix Blue و ProTaper Gold

نوع مقاله : مقاله پژوهشی

نویسندگان

1 گروه اندودنتیکس، مرکز تحقیقات دندان‌پزشکی، دانشکده‌ی دندان‌پزشکی، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران

2 دانشجوی دندانپزشکی، دانشکده‌ی دندان‌پزشکی، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران

10.22122/jids.2025.45549.1017

چکیده

مقدمه: شکستن فایل‌های روتاری حین درمان ریشه‌ی دندان‌ها، یکی از نگرانی‌های مهم دندانپزشکان می‌باشد. سیستم‌های ProTaper Gold، Pronix Gold وPronix Blue از جمله سیستم‌های نسبتاً جدیدی هستند که با بهبود آلیاژهای NiTi از طریق عملیات حرارتی به منظور کاهش خطر شکستن فایل‌ها ساخته شده‌اند. بدین منظور هدف این مطالعه، تعیین مقاومت به خستگی دوره‌ای فایل‌های Pronix Blue، Pronix Gold و ProTaper بود.
مواد و روش‌ها: در این مطالعه‌ی تجربی- آزمایشگاهی که در مرکز تحقیقات مواد دندانی دانشکده‌ی دندانپزشکی اصفهان در سال ۱۴۰۳ انجام شد، از 45 فایل روتاری Pronix Blue، Pronix Gold و ProTaper Gold سایز F2، در 3 گروه 15تایی استفاده شد. همه‌ی فایل‌ها تا زمان شکست با تورک و سرعت یکسان در کانال وارد و خارج شدند. تجزیه و تحلیل آماری در سطح خطای 5 درصد و آزمون آنالیز واریانس یک ‌طرفه (One-way ANOVA) و به دنبال آن از آزمون تعقیبی Tukey برای بررسی تفاوت‌های زوجی گروه‌ها استفاده شد (0/001 > P).
یافته‎ها: میانگین تعداد دور تا شکست (Number of Cycles to Failure) NCF در گروه ProTaper Gold برابر با 12/75 ± 165/40، در گروه Pronix Blue برابر با 16/49 ± 178/60 و در گروه Pronix Gold برابر با 12/46 ± 141/20 بود. آزمون Tukey نشان داد که بین میانگین تعداد دور تا شکست فایل Pronix Gold و Pronix Blue و ProTaper Gold تفاوت معنی‌داری وجود دارد (0/001 > P).
نتیجه‎گیری: نتایج این مطالعه نشان داد که کم‌ترین مقاومت به شکست در گروه فایل روتاری Pronix Gold و بیش‌ترین مقاومت به شکست در گروه Pronix Blue مشاهده شد.

تازه های تحقیق

حمید رضویان: PubMed, Google Scholar

علی اخوان: PubMed, Google Scholar

کلیدواژه‌ها


عنوان مقاله [English]

Comparative Evaluation of Cyclic Fatigue Resistance of Pronix Gold, Pronix Blue, and Protaper Gold Rotary Files

نویسندگان [English]

  • Hamid Razavian 1
  • Ali Akhavan 1
  • Movahed Ghasem Yeganeh 1
  • Mohammad Yousef Motaghi 2
  • Sharareh Barati 1
1 Department of Endodontics, Dental Research Center, Dental Research Institute, School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran
2 Post Graduate Student, School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran
چکیده [English]


Introduction: File separation within the root canal during canal preparation is a significant concern for dentists. Systems like ProTaper Gold, Pronix Gold, and Pronix Blue are relatively new systems that have been developed by improving NiTi alloys through heat treatment to reduce the risk of file separation. The aim of this study is to determine the cyclic fatigue resistance of Pronix Blue, Pronix Gold, and ProTaper Gold files.
Materials and Methods: In this experimental in-vitro study, conducted at the Dental Materials Research Center of Isfahan Dental School in 2024-2025, 45 rotary files (size F2) of Pronix Blue, Pronix Gold, and ProTaper Gold were used, divided into three groups of 15. All files were inserted into and removed from the canal until fracture, using the same torque and speed. Statistical analysis was performed with a significance level of 5% using one-way ANOVA, followed by Tukey's post hoc test for pairwise comparisons.
Results: The mean number of cycles to failure was 165.40 ± 12.75 for the ProTaper Gold group, 178.60 ± 16.49 for the Pronix Blue group, and 141.20 ± 12.46 for the Pronix Gold group. Tukey's test revealed significant differences in the mean number of cycles to failure between the Pronix Gold and Pronix Blue files and ProTaper Gold (P < 0.001).
Conclusion: The results of this study indicated that the lowest failure resistance was observed in the Pronix Gold rotary file group, while the highest failure resistance was found in the Pronix Blue group.

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