This study quantitatively assessed injection pressure, pain, and anxiety at the start of injection of a local anesthetic into the oral mucosa, and confirmed the relationship between injection pressure and pain, as well as between injection pressure and anxiety. Twenty-eight healthy men were selected as subjects and a 0.5-inch (12 mm) 30-gauge disposable needle attached to a computer-controlled local anesthetic delivery system (the Wand) was used. A 0.5 mL volume of local anesthetic solution was injected submucosally at a speed of either 30 or 160 s/mL. Three seconds after the start of local anesthetic injection, injection pressure was measured and pain and anxiety were assessed. Injection pressure was measured continuously in real time by using an invasive sphygmomanometer and analytical software, and pain was assessed on the Visual Analogue Scale and anxiety on the Faces Anxiety Scale. A significant correlation was evident between injection pressure and pain (rs = .579, P = .00124) and between intensity of injection pressure and state anxiety (rs = .479, P = .00979). It is therefore recommended that local anesthetic be injected under low pressure (less than 306 mm Hg) to minimize pain and anxiety among dental patients.
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机译:这项研究定量评估了将局麻药注射入口腔粘膜开始时的注射压力,疼痛和焦虑,并证实了注射压力和疼痛之间以及注射压力和焦虑之间的关系。选择28名健康男性作为研究对象,并使用连接到计算机控制的局部麻醉剂输送系统(Wand)的0.5英寸(12毫米)30口径一次性针头。粘膜下以30或160 s / mL的速度注射0.5 mL体积的局部麻醉溶液。开始局部麻醉注射后三秒钟,测量注射压力并评估疼痛和焦虑。使用有创血压计和分析软件实时连续测量注射压力,并在视觉模拟量表上评估疼痛,在面部焦虑量表上评估焦虑。注射压力和疼痛之间(rs = .579,P = .00124)以及注射压力强度和状态焦虑之间存在明显的相关性(rs = .479,P = .00979)。因此,建议在低压(小于306 mm Hg)下注射局部麻醉剂,以最大程度地减少牙科患者的疼痛和焦虑。
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