Yared G M, Dagher F B
Department of Endodontics, Dental School, Lebanese University, Beirut, Lebanon.
J Endod. 1997 Sep;23(9):575-8. doi: 10.1016/S0099-2399(06)81125-8.
The purpose of this study was to measure the degree of anesthesia following the administration of 3.6 ml of 2% lidocaine solutions with either 1:50,000, 1:80,000, or 1:100,000 for inferior alveolar nerve block and to compare the results with those obtained following the administration of 1.8 ml of the same solutions (1). With the use of a repeated measures design, 30 subjects randomly received an inferior alveolar injection at three successive appointments. The first molar, first premolar, lateral incisor, and contralateral canine (control) were blindly tested with an Analytic Technology pulp tester at 3-min cycles for 50 min. The degree of anesthesia was comparable for the three solutions following the administration of 3.6 ml of each solution. Retrospective evaluation showed that the volume of the solution influenced the degree of anesthesia.
本研究的目的是测量在下牙槽神经阻滞中注射3.6毫升2%利多卡因溶液（浓度分别为1:50,000、1:80,000或1:100,000）后的麻醉程度，并将结果与注射1.8毫升相同溶液后的结果进行比较(1)。采用重复测量设计，30名受试者在连续三次就诊时随机接受下牙槽注射。使用Analytic Technology牙髓活力测试仪，在3分钟的周期内对第一磨牙、第一前磨牙、侧切牙和对侧尖牙（对照）进行50分钟的盲法测试。在每种溶液注射3.6毫升后，三种溶液的麻醉程度相当。回顾性评估表明，溶液的体积会影响麻醉程度。
