Chen Xiu-Mei, Guo Bin, Zhou Xue-Dong, Que Ke-Hua
Dept. of Special Diagnosis, West China College of Stomatology, Sichuan University, Chengdu 610041, China.
Hua Xi Kou Qiang Yi Xue Za Zhi. 2006 Jun;24(3):237-9.
To compare the painless effect of four anesthetic methods during opening pulp cavity and undergoing pulpectomy for acute or chronic pulpitis.
80 teeth of 80 patients were randomly allocated into four groups. Each group had 20 teeth. Anesthetic methods applied four different groups included block anesthesia of nerve, supraperiosteal infiltration, periodontal membrane injection and intrapulpal injection. Anesthesia doses were recorded and the pierced points, the zones of pain, the time of anesthesia action, the time of anesthesia persistence and the degrees of anesthesia were evaluated with four levels synthetic evaluation standard of anesthesia.
Compared with periodontal membrane injection and intrapulpal injection, block anesthesia of nerve and supraperiosteal infiltration had the later time of anesthesia action and the longer time of anesthesia persistence (P<0.05). In four anesthetic methods, block anesthesia of nerve had the best painless effect (P<0.05).
Four anesthetic methods have their own superiorities, and we should select proper anesthetic methods in clinical work.
比较急性或慢性牙髓炎开髓及牙髓摘除术中四种麻醉方法的无痛效果。
将80例患者的80颗牙齿随机分为四组，每组20颗牙。四组采用的麻醉方法分别为神经阻滞麻醉、骨膜上浸润麻醉、牙周膜注射麻醉和牙髓腔内注射麻醉。记录麻醉剂量，并采用四级麻醉综合评价标准对进针点、疼痛区域、麻醉起效时间、麻醉持续时间及麻醉程度进行评价。
与牙周膜注射麻醉和牙髓腔内注射麻醉相比，神经阻滞麻醉和骨膜上浸润麻醉的麻醉起效时间较晚，麻醉持续时间较长（P<0.05）。四种麻醉方法中，神经阻滞麻醉的无痛效果最佳（P<0.05）。
四种麻醉方法各有优势，临床工作中应选择合适的麻醉方法。
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