• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International Conference on Advanced Nondestructive Evaluation >Monitoring of Bone Temperature During Osseous Preparation for Orthodontic Micro-Screw Implants: Effect of Motor Speed and Pressure
【24h】

Monitoring of Bone Temperature During Osseous Preparation for Orthodontic Micro-Screw Implants: Effect of Motor Speed and Pressure

机译：对骨液制剂进行正畸微螺杆植入物的骨温度监测：电动机速度和压力的影响

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The temperature at the surface of the bony recipient site during drilling for orthodontic micro-implant placement was monitored using infrared thermography. The primary objective was to identify proper drilling conditions to allow efficient drilling without raising the hone temperature above the threshold temperature of 44°C to 47°C. Bovine ribs were selected to provide cortical bone of a similar quality to the human mandible. Four drilling conditions combining 2 motor speeds (600 and 1200 rpm) and 2 pressure loads (500 g and 1000 g) were established based on clinical practice. Much care was taken to duplicate an oral environment, although no irrigation was used to allow the infrared radiation to transmit without being hindered by cooling water. Thermal images were recorded using a Thermovision 900 system (Amega, Danderryd. Sweden). The results showed that the temperature rise relys significantly on the drilling speed and pressure. When both the drilling speed and the pressure were low, the cortical bone could not be cut. However, increasing either the speed or the pressure resulted in a temperature increase. Drill speed of 600 rpm at the pressure load 1000g produced more or less the same temperature, 40-45°C, as when the drill speed was increased to 1200 rpm while keeping the load at 500g. Yet, a temperature as high as 62.4°C was recorded when combining the high motor speed and high pressure. Most of the temperature rise took place during the initial 5-10 seconds of drilling, indicating that intermittent irrigation at an interval of 5 seconds or less would be of particular importance to minimize possible thermal trauma.
机译：使用红外热成像监测钻井前钻孔钻头钻头的骨接受者位点的温度。主要目的是识别适当的钻井条件，以允许高效钻探，而不使静脉温度高于44℃至47℃的静脉温度。选择牛肋骨以向人类下颌骨提供类似质量的皮质骨。基于临床实践，建立了四个电机速度（600和1200rpm）和2个压力负荷（500g和1000g）的四个钻孔条件。虽然没有使用灌溉来缩短口腔环境以允许红外线辐射而不通过冷却水阻碍而进行灌溉。使用ThermoVision 900系统（Amega，Danderryd。瑞典）记录热图像。结果表明，温度升高依赖于钻孔速度和压力。当钻孔速度和压力都低时，无法切割皮质骨。然而，增加速度或压力导致温度升高。钻速600rpm在压力负荷1000g时产生或多或少相同的温度，40-45°C，因为当钻头速度增加到1200 rpm时，同时保持负载500克。然而，在结合高电机速度和高压时，记录高达62.4°C的温度。在钻孔的初始5-10秒内发生了大部分温度升高，表明间隔为5秒或更小的间隔灌溉是特别重要的，以最小化可能的热创伤。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号