Functional magnetic resonance imaging of brain activity during chewing and occlusion by natural teeth and occlusal splints
Functional magnetic resonance imaging of brain activity during chewing and occlusion by natural teeth and occlusal splints
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DOI：
10.1016/j.aanat.2007.02.027
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发表时间：
2007-01-01
影响因子：
2.2
通讯作者：
Hosten, Norbert
中科院分区：
文献类型：
--
作者：
Kordass, Bernd;Lucas, Christian;Hosten, Norbert
基于功能磁共振（fMRI）的脑成像是一种有用的方法。工具.用于神经元检查。网络和大脑结构subserving空间。功能本研究的目的是比较自然状态下正中咬合咀嚼时的脑活动和咬合功能。牙齿或咬合面上。夹板由13名健康的、完全有齿的受试者（21-32岁，6名女性和7名男性）执行四个任务：咬合。应用上颌咬合后，天然牙齿在正中咬合中的敲击-敲击运动。左右两侧橡胶坝条上的夹板和咀嚼动作。为了揭示大脑的哪些区域被更强烈地激活，对每个受试者和所有受试者的大脑信号活动的平均值进行了不同任务之间的联合分析。虽然减去了几个已知的活动病灶，但感觉运动皮层的活动差异显著。主要是同侧的半球有关的左侧和右侧的咀嚼，而自然牙齿和夹板咬合的自来水自来水运动之间的连接表明只有一个弱，但显着的激活灶。本研究证实fMRT是研究咬合和咬合治疗的神经-皮层效应的最有效的开发方法之一。(C)2007年，Elsevier GmbH。All rights reserved.
Brain imaging based on functional magnetic resonance (fMRI) is a useful. tool. for examination of neuronal. networks and cerebral structures subserving visiospatial. function. The purpose of this study was to compare the brain activity during chewing and occlusal function in centric occlusion on natural. teeth or on occlusal. splints. Four tasks were performed by 13 healthy, fully dentate subjects (21-32 years old, 6 female and 7 mate): occlusal. tap-tap movements in centric occlusion by natural teeth, after application of a maxillary occlusal. splint and chewing movements on left and right sided rubberdam strips. In order to reveal which areas of the brain were more strongly activated, conjunction analyses between the different tasks were performed for each subject and for the average values of brain signal activity of all subjects. Whilst several known foci of activity were subtracted, differences of significant activity rested in areas of the sensorimotor cortex. Mainly ipsilaterality of hemispheres concerned the left and right sided chewing, whereas the conjunction between tap-tap movements on natural teeth and splint occlusion indicated only one weak, but significant activation foci. The study confirms fMRT as one of the most useful developing methods to clear up neuro-cortical effectiveness of occlusion and occlusal therapy. (C) 2007 Elsevier GmbH. All rights reserved.