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首页> 外文期刊>Journal of Endodontics: Official Journal of American Association of Endodontists >Multiple autoclave cycles affect the surface of rotary nickel-titanium files: an atomic force microscopy study.
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Multiple autoclave cycles affect the surface of rotary nickel-titanium files: an atomic force microscopy study.

机译：多个高压灭菌循环会影响旋转镍钛锉的表面：一项原子力显微镜研究。

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摘要

The purpose of this study was to evaluate the surface of rotary nickel-titanium (Ni-Ti) files after multiple autoclave cycles. Two different types of rotary Ni-Ti (Greater Taper and ProFile) were attached to a glass base. After 1, 5, and 10 autoclave cycles the files were positioned in the atomic force microscope. The analyses were performed on 15 different points. The same files were used as control before any autoclave cycle. The following vertical topographic parameters were measured: arithmetic mean roughness, maximum height, and root mean square. The differences were tested by analysis of variance with Tukey test. All topographic parameters were higher for both Greater Taper and ProFile after 10 cycles compared with the control (P .05). ProFile also showed higher topographic parameters after 5 cycles compared with the control (P .05). The results indicated that multiple autoclave cycles increase the depth of surface irregularities located on rotary Ni-Ti files.
机译：这项研究的目的是评估多个高压灭菌循环后的旋转镍钛（Ni-Ti）锉的表面。两种不同类型的旋转Ni-Ti（Greater Taper和ProFile）连接到玻璃基座。在1、5和10个高压灭菌循环之后，将文件放置在原子力显微镜中。分析在15个不同点上进行。在任何高压灭菌循环之前，将相同的文件用作对照。测量了以下垂直地形参数：算术平均粗糙度，最大高度和均方根。通过使用Tukey检验进行方差分析来检验差异。 10个周期后，Greater Taper和ProFile的所有地形参数均高于对照组（P <.05）。与对照相比，ProFile在5个循环后还显示出更高的地形参数（P <.05）。结果表明，多个高压灭菌循环增加了位于旋转Ni-Ti锉上的表面不规则深度。

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