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首页> 外文期刊>The International journal of prosthodontics >Evaluation of Heat Transfer to the Implant-Bone Interface During Removal of Metal Copings Cemented onto Titanium Abutments
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Evaluation of Heat Transfer to the Implant-Bone Interface During Removal of Metal Copings Cemented onto Titanium Abutments

机译：去除接合在钛基台上的金属顶盖时，热传递至种植体-骨界面的评估

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Purpose: The aim of this investigation was to measure the temperature increase due to heat transferred to the implant-bone interface when the abutment screw channel is accessed or a metal-ceramic crown is sectioned buccally with diamond or tungsten carbide bur using an air rotor, with or without irrigation. Materials and Methods: Cobalt-chromium copings were cemented onto straight titanium abutments. The temperature changes during removal of the copings were recorded over a period of 1 minute. Results: The sectioning of coping with diamond bur and without water irrigation generated the highest temperature change at the cervical part of the implant. Conclusion: Both crown removal methods resulted in an increase in temperature at the implant-bone interface. However, this temperature change did not exceed 47 degrees C, the potentially damaging threshold for bone reported in the literature.
机译：目的：该研究的目的是测量当接近基台螺钉通道或使用空气转子将金刚石或碳化钨钻头颊切成金属陶瓷冠时，由于热量传递到种植体-骨界面而引起的温度升高，有或没有灌溉。材料和方法：将钴铬合金帽粘接到直的钛基台上。在1分钟的时间内记录在去除顶盖期间的温度变化。结果：在不使用水冲洗的情况下，用金刚石钻头处理的切片在植入物的颈部产生了最高的温度变化。结论：两种牙冠去除方法均导致植入物-骨界面温度升高。但是，这种温度变化不超过47摄氏度，这是文献中报道的可能破坏骨骼的阈值。

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