...牙本质过敏症Dentine hypersensitivity l 定义：又称过敏性牙本质(Hypersensitive dentine )，是指牙在受到外界刺激，如温度、化学、机械作用等所引起 的酸痛症状。特点是发作迅速、疼痛尖锐、时间短暂。
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AIM: to observe the effects of treatment on hypersensitive dentine by semi-conductor laser.
目的：观察半导体激光治疗牙齿感觉过敏症的疗效。
Purposes:To investigate the histopathological effect of laser treatment for hypersensitive dentine on dental pulp.
目的：探讨激光治疗牙本质过敏症时，牙髓组织的刺激性影响。
Methods Semiconductor laser was compared with conventional NaF method for the treatment of 100 teeth with typical hypersensitive dentine which were divided into two groups.
方法牙本质过敏的患牙10 0颗，分为两组，一组用半导体激光治疗，一组用常规氟化钠脱敏。
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