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学科主题: 口腔医学
题名:
Neuroplasticity of edentulous patients with implant-supported full dentures
作者: Yan, Chen1; Ye, Lin1; Zhen, Jin2; Ke, Li2; Gang, Liu2
关键词: cerebral cortex ; dental implant ; full denture ; functional magnetic resonance imaging (fMRI) ; osseoperception
刊名: EUROPEAN JOURNAL OF ORAL SCIENCES
发表日期: 2008-10-01
卷: 116, 期:5, 页:387-393
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology
类目[WOS]: Dentistry, Oral Surgery & Medicine
研究领域[WOS]: Dentistry, Oral Surgery & Medicine
关键词[WOS]: AGE-RELATED-CHANGES ; MASTICATORY PERFORMANCE ; SOMATOSENSORY CORTEX ; ORAL IMPLANTS ; PLASTICITY ; ACTIVATION ; MEMORY ; FMRI ; OSSEOPERCEPTION ; REPRESENTATION
英文摘要:

Edentulous patients with implant-supported prostheses report improved tactile discriminative capabilities and motor function compared with when they wore complete dentures. ′Osseoperception′ is defined as the ability to identify kinesthetic sensation without the input from periodontal mechanoreceptors. This sensation is generated from the temporomandibular joint, masticatory muscle, mucosa, and periosteum, and provides sensory and motor information related to mandible movements and occlusion. The aim of this study was to analyze the cortical plasticity occurring in patients with implant-supported prostheses. Twenty edentulous patients with implant-supported full dentures or traditional complete dentures were recruited for a clenching task. They were scanned by functional magnetic resonance imaging (fMRI), and the data were analyzed using the SPM99 software package to generate activation brain maps. Increased blood oxygen level dependent signals in the primary sensorimotor cortex were found in patients with implant-supported fixed dentures. Other activated areas included prefrontal cortex, Broca′s area, premotor cortex, supplementary motor area, superior temporal gyrus, insular, basal ganglion, and hippocampus. We suggest that sensory and motor feedback to the central nervous system can be restored by implant-supported full dentures. Activation of the primary sensorimotor cortex in patients with implant-supported dentures might explain the improved tactile, stereognostic ability, and mastication functions, which are more similar to the natural dentition.

语种: 英语
所属项目编号: 30672336
项目资助者: The National Natural Science Foundation of China
WOS记录号: WOS:000259024100001
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.bjmu.edu.cn/handle/400002259/56508
Appears in Collections:北京大学口腔医学院_口腔种植科_期刊论文

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作者单位: 1.Peking Univ, Sch Stomatol, Dept Implant Dent, Beijing 100081, Peoples R China
2.Chinese 306 PLA Hosp Beijing, Dept Magnet Resonance Imaging, Beijing, Peoples R China

Recommended Citation:
Yan, Chen,Ye, Lin,Zhen, Jin,et al. Neuroplasticity of edentulous patients with implant-supported full dentures[J]. EUROPEAN JOURNAL OF ORAL SCIENCES,2008,116(5):387-393.
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