Chewing-related prefrontal cortex activation while wearing partial denture prosthesis: Pilot study
Chewing-related prefrontal cortex activation while wearing partial denture prosthesis: Pilot study
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DOI：
10.1016/j.jpor.2009.02.005
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发表时间：
2009-07-01
影响因子：
3.6
通讯作者：
Tanaka, Naoki
中科院分区：
文献类型：
--
作者：
Narita, Noriyuki;Kamiya, Kazunobu;Tanaka, Naoki
目的：从牙科医学的角度来看，佩戴假牙被认为可以提高老年人的咀嚼能力、咀嚼舒适度和生活质量。我们试图阐明修复治疗对背侧前额叶皮层激活的影响，背侧前额叶皮层参与高级认知功能。方法：将三名部分无牙颌患者作为受试者，其中一名 60 岁男性和两名女性，分别为 57 岁和 64 岁。为了检测脑血流量的变化，使用近红外光谱（NIRS）。还进行肌电图记录以检测咬肌的双侧活动（Mm）。结果：佩戴局部义齿修复体时，右半球和/或左半球的背侧前额皮质显着激活。此外，佩戴局部义齿修复体时，MM EMG 活动显着增加。结论：我们的结论是，局部义齿修复体显着刺激咀嚼肌和背侧前额皮质活动，这可能有助于预防老年人的认知障碍。 (C) 2009 年日本口腔修复学会。由爱尔兰爱思唯尔出版。版权所有。
Purpose: From the standpoint of dental medicine, denture wearing is considered to improve chewing ability, chewing comfort, and quality of life in elderly individuals. We attempted to clarify the effects of prosthodontic treatment on activation of the dorsal prefrontal cortex, which is involved in higher cognitive functions.Methods: Three partially edentulous patients, one 60-year-old male, and two females, 57 and 64 years old, were enlisted as subjects. For detection of changes in cerebral blood flow, near infrared spectroscopy (NIRS) was used. EMG recording was also conducted to detect bilateral activities of the masseter muscles (Mm).Results: Significant activation of the dorsal prefrontal cortex in the right and/or left hemisphere was shown while wearing partial denture prosthesis. Furthermore, Mm EMG activity was significantly increased while wearing a partial denture prosthesis.Conclusions: We concluded that a partial dental prosthesis significantly stimulates both masticatory muscle and dorsal prefrontal cortex activities, which might contribute to the prevention of cognitive impairment in aged individuals. (C) 2009 Japan Prosthodontic Society. Published by Elsevier Ireland. All rights reserved.