Brain activation patterns during unilateral premolar occlusion
Brain activation patterns during unilateral premolar occlusion
复制标题
单侧前磨牙咬合期间的大脑激活模式
DOI：
10.1080/08869634.2017.1379259
复制
发表时间：
2019-01
期刊：
影响因子：
--
通讯作者：
Hong-Chen Liu
中科院分区：
文献类型：
--
作者：
Chun-Zhen Feng;Jin-Feng Li;Nan Hu;Hua Jiang;Yan-Yi Wang;Hong-Chen Liu
摘要目的：观察单侧前磨牙咬合过程中的脑激活特征。研究方法：收集10名健康志愿者在左第一前磨牙（L1）、左第二前磨牙（L2）和右第一前磨牙（R1）咬合过程中的功能磁共振成像。分析大脑激活模式，并选择初级感觉运动皮层，辅助运动区，丘脑，前额叶皮层作为感兴趣的区域。结果如下：单颗前磨牙咬合激活了中央前回、中央后回、小脑、丘脑、额叶、海马、扣带回和顶叶。在单前磨牙咬合过程中显示激活的脑区与咀嚼激活的脑区相似。与R1相比，L1的激活模式更类似于L2。在感兴趣区域内没有检测到左半球和右半球信号强度的显着差异。结论：两个同侧前磨牙的脑激活模式比对侧前磨牙的模式更相似。
Abstract Objective: To observe the characteristics of brain activation during unilateral premolar occlusion. Methods: Functional magnetic resonance imaging was collected from 10 healthy volunteers during occlusion of the left first premolar (L1), left second premolar (L2), and right first premolar (R1). The brain activation patterns were analyzed, and the primary sensorimotor cortex, supplementary motor area, insula, thalamus, and prefrontal cortex were chosen as regions of interest. Results: Single premolar occlusion activated the precentral gyrus, postcentral gyrus, cerebellum, thalamus, frontal lobe, hippocampus, cingulate gyrus, and parietal lobe. The brain areas showing activation during single premolar occlusion were similar to those activated by chewing. The activation pattern of L1 was more similar to that of L2 than R1. No significant left and right hemisphere differences in signal intensity were detected within the regions of interest. Conclusion: Brain activation patterns from two ipsilateral premolars were more similar than the pattern from a contralateral premolar.
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