热处理对镍钛根管锉的影响

F.M. Braz Fernandes, A.R. Alves, A. Machado, J.P. Oliveira
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引用次数: 3

摘要

本研究选择了三个品牌的旋转镍钛根管器械,它们具有一些相似的几何特征,但截面不同(尖端尺寸相似,锥度相同):MTwo .04(35) (VDW GmbH,德国),K3 .04(30) (SybronEndo,墨西哥)和K3XF .04(30) (SybronEndo,墨西哥)。K3XF由新型r相热处理金属合金制成,而其他锉均由传统Ni-Ti合金制成。仪器在以下条件下进行分析:i)接收(AR), ii) 350°C热处理,iii) 400°C热处理。用差示扫描量热仪(DSC)测定了相变温度。与常规的K3和MTwo文件相比,r相热处理的K3XF文件的转变温度更高。这些结果还表明,热处理提高了相变温度。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Effect of heat treatments on Ni-Ti endodontic files

Three brands of rotary nickel-titanium endodontic instruments with some comparable geometric features but with different cross-section (similar tip size and same taper of .04) were selected for this study: MTwo .04(35) (VDW GmbH, Germany), K3 .04(30) (SybronEndo, Mexico) and K3XF .04(30) (SybronEndo, Mexico). K3XF is made from novel R-phase heat-treated metal alloy while all other files were made from traditional Ni-Ti alloy. The instruments were analysed under the following conditions: i) as-received (AR), ii) heat treated at 350 °C, iii) heat treated at 400 °C. The transformation temperatures were determined by differential scanning calorimeter (DSC). Compared to conventionally K3 and MTwo files, R-phase heat treatment K3XF file showed higher transformation temperatures. These results also showed that heat treatments increase the transformation temperatures.

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