Isik B K, Esen A, Büyükerkmen B, Kilinç A, Menziletoglu D
Necmettin Erbakan University, Faculty of Dentistry, Oral and Maxillofacial Surgery Department, Konya, Turkey.
Necmettin Erbakan University, Faculty of Dentistry, Oral and Maxillofacial Surgery Department, Konya, Turkey.
Br J Oral Maxillofac Surg. 2017 Jul;55(6):571-574. doi: 10.1016/j.bjoms.2017.02.014. Epub 2017 Mar 18.
Binaural beats are an auditory illusion perceived when two different pure-tone sine waves are presented one to each ear at a steady intensity and frequency. We evaluated their effectiveness in reducing preoperative anxiety in dentistry. Sixty patients (30 in each group) who were to have impacted third molars removed were studied (experimental group: 20 women and 10 men, mean (range) age 24 (18-35) years, and control group: 22 women and 8 men, mean (range) age 28 (15-47) years). All patients were fully informed about the operation preoperatively, and their anxiety recorded on a visual analogue scale (VAS). The local anaesthetic was given and the patients waited for 10minutes, during which those in the experimental group were asked to listen to binaural beats through stereo earphones (200Hz for the left ear and 209.3Hz for the right ear). No special treatment was given to the control group. In both groups anxiety was then recorded again, and the tooth removed in the usual way. The paired t test and t test were used to assess the significance of differences between groups. The degree of anxiety in the control group was unchanged after the second measurement (p=0.625), while that in the experimental group showed a significant reduction in anxiety (p=0.001). We conclude that binaural beats may be useful in reducing preoperative anxiety in dentistry.
双耳节拍是一种听觉错觉，当两个不同的纯音正弦波以稳定的强度和频率分别呈现给每只耳朵时即可感知到。我们评估了其在减轻牙科手术术前焦虑方面的效果。对60名即将拔除阻生第三磨牙的患者进行了研究（实验组：20名女性和10名男性，平均（范围）年龄24（18 - 35）岁；对照组：22名女性和8名男性，平均（范围）年龄28（15 - 47）岁）。所有患者在术前均充分了解手术情况，并通过视觉模拟量表（VAS）记录其焦虑程度。给予局部麻醉后，患者等待10分钟，在此期间，要求实验组患者通过立体声耳机聆听双耳节拍（左耳为200Hz，右耳为209.3Hz）。对照组未给予特殊处理。然后再次记录两组患者的焦虑情况，并按常规方式拔除牙齿。采用配对t检验和t检验评估组间差异的显著性。对照组在第二次测量后焦虑程度未变（p = 0.625），而实验组的焦虑程度显著降低（p = 0.001）。我们得出结论，双耳节拍可能有助于减轻牙科手术的术前焦虑。
