作者对24名患者进行一项随机性双盲实验,以评估第三磨牙术后牙槽局部应用阿斯匹林或扑热息痛的止痛效果。治疗组患者口服安慰剂+牙槽局部填注阿斯匹林或扑热息痛混悬液(以甲基纤维素为助悬剂,其中阿斯匹林或扑热息痛的浓度为100mg/ml),对照组患者口服阿斯匹林或扑热息痛50mg+牙槽局部填注甲基纤维素。实验结果表明,治疗组较对照组疼痛显著减轻(P<0.05),且对愈合无不良影响。局部应用阿斯匹 The authors conducted a randomized, double-blind, 24-patient study to evaluate the analgesic effect of topical application of aspirin or paracetamol to the alveoli of the third molars. Patients in the treatment group were given placebo plus alveolar topical aspirin or paracetamol suspension (with methylcellulose as suspending agent, the concentration of aspirin or paracetamol was 100mg / ml), patients in the control group Oral aspirin or paracetamol 50mg + alveolar topical filling methylcellulose. The experimental results show that the treatment group than the control group significantly reduced the pain (P <0.05), and no adverse effects on healing. Topical application aspirin