我科自1987年开始应用CO_2激光失活患牙牙髓,取得较好的临床效疗,现介绍如下: 临床资料一、适应症:后牙急性牙髓炎或慢性牙髓炎急性发作;慢性牙髓炎早期阶段即牙髓未出现化脓或坏死现象;牙髓息肉,亚砷酸失活不全的患牙。二、病例选择:上、下颌双尖牙52例;上、下颌第一磨牙75例。年龄15～67岁。三、操作方法;在局麻下开髓,充分揭开髓顶,激光输出嘴距髓腔顶1.0cm。激光波长10.6μm。输出功率10W。光斑直径0.25mm。 Our department since 1987, the application of CO_2 laser inactivation of dental pulp, and obtain better clinical treatment, are as follows: Clinical data First, the indications: acute pulpitis or chronic pulpitis acute attack; chronic teeth In the early stages of myelitis, there is no suppuration or necrosis of the pulp; pulp polyps, arsenic inactivation of incomplete teeth. Second, the case selection: upper and lower jaw double canine 52 cases; upper and lower jaw first molar in 75 cases. Aged 15 to 67 years old. Third, the operation method; opened under local anesthesia, fully opened the top of the pulp, the laser output from the tip of the medullary cavity 1.0cm. Laser wavelength 10.6μm. Output power 10W. Spot diameter of 0.25mm.