Comparison of Cyclic Fatigue Resistance of E-Flex Rec and Reciproc® Blue Using Reciprocating Motion in Artificial Canal
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Abstract
Objective: This study compared the cyclic fatigue resistance of two types of Nickel-Titanium rotary files: E-Flex Rec and Reciproc® Blue in reciprocating motion in an artificial canal
Materials and Methods: E-Flex Rec size 25 (Taper 0.06) and Reciproc® Blue size R25 (Taper 0.08) were rotated in an artificial stainless-steel canal with a 60° curvature and a 5 mm radius of curvature, while maintaining a constant speed. The number of rotations before fracture (NRF) were recorded. Data was statistically analysed with Unpaired T-Test to compare the difference between 2 groups.
Results: Results showed that the mean NRF of E-flex Rec was found to be significantly higher than Reciproc® Blue (P <0.05).
Conclusion: According to the data, E-Flex Rec, which modified alloy structure by heat treatment process, had higher cyclic fatigue resistance than Reciproc® Blue when preparing in root canal with severe curvature.
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บทความ ข้อมูล เนื้อหา รูปภาพ ฯลฯ ที่ได้รับการลงตีพิมพ์ในวิทยาสารทันตแพทยศาสตร์ มหาวิทยาลัยขอนแก่นถือเป็นลิขสิทธิ์เฉพาะของคณะทันตแพทยศาสตร์ มหาวิทยาลัยขอนแก่น หากบุคคลหรือหน่วยงานใดต้องการนำทั้งหมดหรือส่วนหนึ่งส่วนใดไปเผยแพร่ต่อหรือเพื่อกระทำการใด ๆ จะต้องได้รับอนุญาตเป็นลายลักษณ์อักษร จากคณะทันตแพทยศาสตร์ มหาวิทยาลัยขอนแก่นก่อนเท่านั้น
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