Benington I C, Biagioni P A, Crossey P J, Hussey D L, Sheridan S, Lamey P J
Division of Restorative Dentistry, Queen's University of Belfast, Northern Ireland, UK.
J Dent. 1996 Jul;24(4):263-7. doi: 10.1016/0300-5712(95)00072-0.
Changes in bone temperature during the sequence of drilling for implant site preparation using the Branemark technique were monitored using infra-red thermography.
Bovine mandibles were used to provide cortical bone of a similar quality to human mandibular bone. To ensure the consistency in the drilling procedure, one operator used a conventional dental handpiece with a motor provided by Nobelpharma. The manufacturer's specifications were followed during the implant site preparation, except that no irrigation was employed since infra-red radiation does not transmit through water. Thermal images were recorded using the Thermovision 900 system. A sequence of images was recorded during implant site preparation. Three drills were examined in terms of temperature changes during drilling over the entire area involved. The three drills used were a round bur, which determines the site of the fixture, a spiral drill (2 mm twist drill) which establishes the direction of the implant and finally a pilot drill (3 mm) which progressively increases the diameter of the site.
Average values (n = 10 drill sequences) for maximum recorded temperature (Max T degrees C), change in temperature (delta T degrees C) from baseline and the area of involvement (mm2) for each drill in the 10 drill sequences were as follows: round, spiral (2 mm) and pilot (3 mm) drills gave maximum temperatures of 82.7 degrees C, 130.1 degrees C and 126.3 degrees C, respectively. The changes in temperature, delta T degrees C, were 45.7 degrees C, 79.0 degrees C and 78.9 degrees C for the round, 2 mm twist and 3 mm pilot drill, respectively. The average areas recorded for the round, spiral and pilot drills were 49 mm2, 140.1 mm2 and 273.0 mm2, respectively.
It is concluded that the methodology employed accurately recorded temperature changes at and around the dental implant site, and provided preliminary baseline data against which the cooling efficacy of different irrigant systems may be compared.
使用红外热成像技术监测在采用Branemark技术进行种植位点预备钻孔过程中骨温度的变化。
使用牛下颌骨以提供与人类下颌骨质量相似的皮质骨。为确保钻孔过程的一致性，由一名操作人员使用配有诺贝尔制药公司提供的马达的传统牙科手机。在种植位点预备过程中遵循制造商的规格，但由于红外辐射不能透过水传播，因此未使用冲洗。使用Thermovision 900系统记录热图像。在种植位点预备过程中记录一系列图像。对用于整个相关区域钻孔的三支钻头的温度变化进行了检查。所使用的三支钻头分别是确定种植体位置的圆钻、确定种植体方向的螺旋钻（2毫米麻花钻）以及逐步扩大种植位点直径的导向钻（3毫米）。
10次钻孔序列中每次钻孔的最大记录温度（最高温度，摄氏度）、相对于基线的温度变化（温度差，摄氏度）以及受累面积（平方毫米）的平均值（n = 10次钻孔序列）如下：圆钻、螺旋钻（2毫米）和导向钻（3毫米）的最高温度分别为82.7摄氏度、130.1摄氏度和126.3摄氏度。圆钻、2毫米麻花钻和3毫米导向钻的温度变化（温度差，摄氏度）分别为45.7摄氏度、79.0摄氏度和78.9摄氏度。圆钻、螺旋钻和导向钻记录的平均面积分别为49平方毫米、140.1平方毫米和273.0平方毫米。
得出的结论是，所采用的方法准确记录了牙种植位点及其周围的温度变化，并提供了初步基线数据，可据此比较不同冲洗系统的冷却效果。
