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Does Periodontal Tactile Input Uniquely Increase Cerebral Blood Flow in the Prefrontal Cortex?
Brain Sciences ( IF 3.3 ) Pub Date : 2020-07-26 , DOI: 10.3390/brainsci10080482
Takaharu Goto 1 , Nobuaki Higaki 1 , Takahiro Kishimoto 1 , Yoritoki Tomotake 2 , Tetsuo Ichikawa 1
Affiliation  

We previously studied the effect of peripheral sensory information from sensory periodontal ligament receptors on prefrontal cortex (PFC) activity. In the dental field, an alternative dental implant without periodontal sensation can be applied for missing teeth. In this study, we examine whether periodontal tactile input could increase cerebral blood flow (CBF) in the PFC against elderly patients with dental implants lacking periodontal tactile (implant group), elderly individuals with natural teeth (elderly group), and young individuals with natural teeth (young group). The experimental task of maintaining occlusal force as closed-loop stimulation was performed. Compared with the young group, the elderly group showed significantly lower CBF. Contrastingly, compared with the young group, the implant group showed significantly lower CBF. There were no significant differences between the elderly and implant groups. Regarding the mean occlusal force value, compared with the young group and the elderly group, the implant group had a numerically, but not significantly, larger occlusal force exceeding the directed range. In conclusion, the periodontal tactile input does not uniquely increase PFC activity. However, increased CBF in the PFC due to the periodontal tactile input in the posterior region requires existing attention behavior function in the PFC.

中文翻译:

牙周触觉输入是否会独特地增加额叶前皮质的脑血流量?

我们以前研究了来自感觉牙周膜韧带受体的周围感觉信息对前额叶皮层(PFC)活动的影响。在牙科领域,可以将一种没有牙周感觉的替代牙齿植入物用于缺失的牙齿。在这项研究中,我们研究了牙周触觉输入是否可以增加针对缺少牙周触觉的牙齿植入物的老年患者(种植体组),具有自然牙齿的老年人(老年人组)和具有自然牙的年轻人的PFC中的脑血流量(CBF)。牙齿(年轻组)。进行了保持咬合力作为闭环刺激的实验任务。与年轻组相比,老年组的CBF明显降低。相反,与年轻组相比,植入物组的CBF明显降低。老年人和植入物组之间没有显着差异。关于平均咬合力值,与青年组和老年组相比,植入物组在数值上(但不明显)有较大的咬合力,超出了指示范围。总之,牙周触觉输入不会唯一地增加PFC活性。然而,由于在后区域中的牙周触觉输入而在PFC中增加的CBF需要在PFC中现有的注意力行为功能。牙周触觉输入并不能唯一增加PFC活性。然而,由于在后区域中的牙周触觉输入而在PFC中增加的CBF需要在PFC中现有的注意力行为功能。牙周触觉输入并不能唯一增加PFC活性。然而,由于在后区域中的牙周触觉输入而在PFC中增加的CBF需要在PFC中现有的注意力行为功能。
更新日期:2020-07-26
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