Kincheloe J E, Mealiea W L, Mattison G D, Seib K
University of Florida, College of Dentistry, Gainesville 32610.
Quintessence Int. 1991 Apr;22(4):311-5.
Topical anesthetics are routinely used to reduce the discomfort that patients perceive during dental injections. The purpose of this investigation was to correlate the expectancy of pain and the effect of pretreatment instructions with the severity of pain perceived upon topical anesthetic use and dental injection. The treatment, topical placebo versus topical anesthetic, was administered in a double-blind manner. Following testing for expectations, the administration of instructions, and placement of the topical, the injection was given. The patients were then asked to rate their injection experience on a posttreatment questionnaire. The results of this investigation reinforce the importance of psychological variables in the mediation of pain perceived during dental procedures.
局部麻醉剂常用于减轻患者在牙科注射过程中感受到的不适。本研究的目的是将疼痛预期和预处理说明的效果与使用局部麻醉剂和牙科注射时所感受到的疼痛严重程度联系起来。治疗（局部安慰剂与局部麻醉剂）以双盲方式进行。在测试预期、给予说明以及放置局部麻醉剂后，进行注射。然后要求患者在治疗后问卷上对他们的注射体验进行评分。本研究结果强化了心理变量在调节牙科手术中所感受到的疼痛方面的重要性。
