Riba-Roca Anna, Figueiredo Rui, Malamed Stanley F, Arnabat-Dominguez Josep
DDS. Faculty of Medicine and Health Sciences, University of Barcelona. Barcelona, Spain.
DDS, MS, PhD. Faculty of Medicine and Health Sciences, University of Barcelona. Barcelona, Spain. Researcher at the Idibell institute. Barcelona, Spain.
J Clin Exp Dent. 2020 Dec 1;12(12):e1139-e1144. doi: 10.4317/jced.57506. eCollection 2020 Dec.
Several methods have been proposed to reduce pain during injection. The main aim to this study was to compare the pain perception in patients receiving palatal injections of local anesthesia using two different computer-controlled local anesthetic delivery systems (C-CLAD) - Dentapen® and The STA Wand®).
A randomized, split-mouth and simple blind clinical trial was carried out at the Dental Hospital of the University of Barcelona (Spain) involving a sample of 20 healthy volunteers. Each participant received two palatal injections in the same session (0.3 ml of 3% mepivacaine without vasoconstrictor), using The STA Wand® on one side and the Dentapen® on the contralateral side. The order of the devices and the side of the injections were randomly selected. Pain perception was recorded after each injection using a 10-cm numeric rating scale (NRS). A descriptive and bivariate analysis of the data was performed.
Pain perception was similar with both devices (>0.05). The STA Wand® and Dentapen® groups yielded a mean pain score of 2.40 cm (standard deviation (SD) = 1.47, range 0-6) and 2.35 cm (SD 1.3, range 1-6), respectively. Most participants referred mild pain (80%), and none experienced severe pain. There were no adverse events.
In the majority of cases (80%), both C-CLAD devices allow the administration of local anesthetics in the palatal area with mild pain. Both The STA Wand® and Dentapen® are equally effective in reducing pain perception levels for palatal injections. Computer-controlled local anesthetic delivery, dental anesthesia; palatal anesthesia, The STA Wand, Dentapen.
已经提出了几种方法来减轻注射过程中的疼痛。本研究的主要目的是比较使用两种不同的计算机控制局部麻醉给药系统（C-CLAD）——Dentapen®和The STA Wand®——进行腭部局部麻醉注射的患者的疼痛感受。
在西班牙巴塞罗那大学牙医院进行了一项随机、分口和单盲临床试验，样本为20名健康志愿者。每位参与者在同一时段接受两次腭部注射（0.3毫升不含血管收缩剂的3%甲哌卡因），一侧使用The STA Wand®，对侧使用Dentapen®。设备使用顺序和注射侧别均随机选择。每次注射后使用10厘米数字评分量表（NRS）记录疼痛感受。对数据进行描述性和双变量分析。
两种设备的疼痛感受相似（>0.05）。The STA Wand®组和Dentapen®组的平均疼痛评分分别为2.40厘米（标准差（SD）=1.47，范围0 - 6）和2.35厘米（SD 1.3，范围1 - 6）。大多数参与者表示疼痛轻微（80%），且无人经历严重疼痛。未发生不良事件。
在大多数情况下（80%），两种C-CLAD设备均可在腭部区域进行局部麻醉注射且疼痛轻微。The STA Wand®和Dentapen®在减轻腭部注射的疼痛感受水平方面同样有效。计算机控制局部麻醉给药；牙科麻醉；腭部麻醉；The STA Wand；Dentapen。
