氧化亚氮吸入清醒镇静在拔牙术中的止痛作用

The Analgesic Effects of Inhalation Conscious Sedation with Nitrous Oxide in Dental Extraction

实验组选取无笑气吸入禁忌证拔牙患者112例,随机分为60%笑气组61例,40%笑气组51例,在笑气吸入清醒镇静辅以局麻下拔牙;对照组53例,只在局麻下拨牙.结果表明:60%笑气组与40%笑气组的VAS疼痛评分大多较低,与对照组相比,在统计学上有非常显著性差异(P<0.001).提示笑气具有一定的镇静、止痛作用,联合局麻应用可以较好地控制患者焦虑与疼痛的复合状态.

To research the analgesic effects of inhalation conscious sedation with nitrous oxide in dental extraction, 112 patients of experimental group were randomly allocated to two groups: 60% nitrous oxide group and 40% nitrous oxide group, given nitrous oxide for conscious sedation as an adjunt to local anaesthesia undergoing dental extraction. 53 patients of control group underwent dental extraction only with local anaesthesia. The results indicated that the patients in 60% and 40% nitrous oxide groups had much lower Visual Analogue Scales (VAS) pain scores than that in the control group (p< 0. 001). It showed that nitrous oxide can provide the effects of sedation and analgesia and in combination with local anaesthesia can reduce both dental anxiety and pain at the same time.