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首页> 外文期刊>Journal of Residuals Science & Technology >Evaluation of the Marginal Microleakage of Endocrown Fabricated with Three Different Processing Technologies
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Evaluation of the Marginal Microleakage of Endocrown Fabricated with Three Different Processing Technologies

机译：三种不同加工技术制造的内腔边缘微渗漏的评估

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This study evaluates endocrown marginal microleakage fabricated by three technologies of selective laser melting,cast and CAD/CAM milling. Method: Twenty four intact extracted molars are selected, and casting( Group A) and selective laser melting(Group B) and CAD/CAM milling(Group C) is used to make separately eight cobalt-chromium alloy porcelain endocrowns. After experiencing 5000 times of thermocycling, immersed in a 2.0% basic red fuchsine dye solution for 24 hours. Sectioned along the buccolingual, observing restoration margin dye leakage by stereomicroscope, microleakage depth of each group were recorded. Data were analyzed with one-way ANOVA and multiple Duncan comparison (α=0.05).Results: There were significant difference (P&0.01) among each group of different processing technologies. Interblock comparison among group A, B and C,groupB (1109.4156um)&groupC(1587.0531um)&group A(1985.2438um).Conclusion: Cobalt-chromium alloy porcelain endocrown marginal microleakage fabricated by selective laser melting technology is superior to endocrown fabricated by cast and milling.
机译：本研究评估了通过选择性激光熔化，铸造和CAD / CAM铣削三种技术制造的冠内边缘微渗漏。方法：选择完整的24颗磨牙，并使用铸造（A组）和选择性激光熔化（B组）和CAD / CAM铣削（C组）分别制造8个钴铬合金瓷冠。经历5000次热循环后，将其浸入2.0％碱性红色品红染料溶液中24小时。沿颊舌切面，用立体显微镜观察修复边缘的染料渗漏，记录每组的微渗漏深度。用单向方差分析和多次邓肯比较法（α＝ 0.05）分析数据。结果：在每组不同加工技术之间存在显着差异（P ＜0.01）。 A，B和C组，B组（1109.4156um）＆ C组（1587.0531um）＆ A组（1985.2438um）之间的块间比较。结论：采用选择性激光熔化技术制造的钴铬合金瓷冠内缘微渗漏优于通过铸造和铣削制成的内冠。

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