日本东京都医疗仪器厂研制成功一种诊断早期龋齿的激光探测仪。这种探测仪采用十瓦钇铝榴石激光器,照射0.1秒到0.2秒钟以后,再用高速温度探头测定齿温,健全牙齿的表面齿温为23～24℃,而有龋齿的部分则升高到30～32℃。另外,观察从侧面照射牙齿后的漏光,健全齿和龋齿也有很大区别。这种探测仪的精确度和安全性比X光好,使用也更加方便。 Japan Tokyo Medical Instrument Factory successfully developed a diagnosis of early dental caries laser detector. The detector uses a ten-watt yttrium aluminum garnet laser, irradiation 0.1 seconds to 0.2 seconds later, and then use the high-speed temperature probe tooth temperature, sound tooth surface temperature of 23 ~ 24 ℃, while the caries part of the rise High to 30 ~ 32 ℃. In addition, the observation of light leakage from the side after the tooth, sound teeth and dental caries are also very different. This detector is more accurate and safer than X-rays and easier to use.