Wang J, Wu D, Shen Y, Zhang Y, Xu Y, Tang X, Wang R
Department of Stomatology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China.
School of Computer and Information, Beijing Jiaotong University, Beijing, China.
Oral Dis. 2015 Jul;21(5):572-82. doi: 10.1111/odi.12314. Epub 2015 Apr 14.
To assess the effects of CBT on electroencephalogram activity in patients with orthodontic pain.
We recruited 24 young (18-28 years), healthy individuals with matched baseline characteristics, including pain intensity, anxiety levels, personality traits, and life-quality scores. Participants were randomly assigned to either the CBT intervention group (n = 12) or the blank control group (n = 12). Multichannel continuous electroencephalogram signals and visual analog scale (VAS) scores were recorded before and after initial archwire placement for 1 week. A 1-month follow-up was conducted, when participants' daily VAS scores were recorded.
The overall EEG spectral power of the CBT group was lower than that of the control group, especially in the theta (4-7 Hz) and beta (14-30 Hz) bands during the treatment period. An enhanced coupling of theta and beta frequencies was observed in frontal and occipital electrodes, respectively. The EEG power in delta and theta bands correlated positively with pain intensity. Network coherence for the CBT group exhibited higher connectivity in the theta band.
Specific cerebral responses to CBT instructions could be detected with continuous electroencephalograms and related to orthodontic pain processing, which may provide a new insight in exploring CBT for orthodontic pain control.
评估认知行为疗法（CBT）对正畸疼痛患者脑电图活动的影响。
我们招募了24名年轻（18 - 28岁）、健康且基线特征匹配的个体，包括疼痛强度、焦虑水平、人格特质和生活质量得分。参与者被随机分配到CBT干预组（n = 12）或空白对照组（n = 12）。在初次放置弓丝前及放置后1周记录多通道连续脑电图信号和视觉模拟量表（VAS）评分。进行为期1个月的随访，记录参与者每日的VAS评分。
CBT组的总体脑电图频谱功率低于对照组，尤其是在治疗期间的θ（4 - 7Hz）和β（14 - 30Hz）频段。分别在额部和枕部电极观察到θ和β频率的耦合增强。δ和θ频段的脑电图功率与疼痛强度呈正相关。CBT组的网络相干性在θ频段表现出更高的连通性。
通过连续脑电图可检测到对CBT指令的特定脑反应，且这些反应与正畸疼痛处理相关，这可能为探索CBT控制正畸疼痛提供新的见解。
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