脉冲Nd：YAG激光照射对牙髓腔内温度的影响

The Temperature Change in Pulp Cavity with Pulse YAG Laser After Irradiated

为了解脉冲Ｎｄ：ＹＡＧ激光治疗牙本质过敏症时牙髓腔内温度的变化情况。对脉冲ＹＡＧ激光每脉冲输出１５０ｍＪ，２００ｍＪ和２５０ｍＪ能量，脉冲频率分别为８，１３，１７ｐｐｓ，均匀扫描式照射，和每脉冲输出１５０ｍＪ和２００ｍＪ脉冲频率为１３ｐｐｓ时集中牙面一点照射时，不同磨损程度牙照射后牙髓腔内温度变化进行了测试。结果表明激光输出能量越大，脉冲频率越快，髓室顶牙本质越薄，髓腔内升温越大。投照方式也影响髓腔内温度变化。

Abstract This article was shown that a comparative accurate experment method combined clinical practice was designed in order to understand the temperature change in pulp cavity when the new therapy was applied to treat dentin sensitivity.The authors applied pulse YAG laser,with different energy output,different pulse frequency and different irradiating method to irradiate different degree wear of teeth. and made an experiment and analysis for the temperature changed in pulp cavity after irradiated.The authors put forward a correct method to apply pulse YAG Laser to treat dentin sensitivity and pointed out the problems need to te paid attention too.