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Effects of Mandibular Retrusive Deviation on Prefrontal Cortex Activation: A Functional Near-Infrared Spectroscopy Study
Joint Authors
Otsuka, Takero
Yamasaki, Ryuichi
Shimazaki, Tateshi
Yoshino, Fumihiko
Sasaguri, Kenichi
Kawata, Toshitsugu
Source
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-05-17
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
The objective of this study was to evaluate occlusal condition by assessing brain activity in the prefrontal cortex, which is associated with emotion.
Functional near-infrared spectroscopy (fNIRS) was used to detect changes in cerebral blood flow in the prefrontal cortex of 12 healthy volunteers.
The malocclusion model was a custom-made splint that forced the mandible into retrusion.
A splint with no modification was used as a control.
The cortical activation during clenching was compared between the retrusive position condition and the control condition.
A visual analog scale score for discomfort was also obtained during clenching and used to evaluate the interaction between fNIRS data and psychiatric changes.
Activation of the prefrontal cortex was significantly greater during clenching in the mandibular retrusive condition than during clenching in the control condition.
Furthermore, Spearman rank-correlation coefficient revealed a parallel relation between prefrontal cortex activation and visual analog scale score for discomfort.
These results indicate that fNIRS can be used to objectively evaluate the occlusal condition by evaluating activity in the prefrontal cortex.
American Psychological Association (APA)
Otsuka, Takero& Yamasaki, Ryuichi& Shimazaki, Tateshi& Yoshino, Fumihiko& Sasaguri, Kenichi& Kawata, Toshitsugu. 2015. Effects of Mandibular Retrusive Deviation on Prefrontal Cortex Activation: A Functional Near-Infrared Spectroscopy Study. BioMed Research International،Vol. 2015, no. 2015, pp.1-6.
https://search.emarefa.net/detail/BIM-1055233
Modern Language Association (MLA)
Otsuka, Takero…[et al.]. Effects of Mandibular Retrusive Deviation on Prefrontal Cortex Activation: A Functional Near-Infrared Spectroscopy Study. BioMed Research International No. 2015 (2015), pp.1-6.
https://search.emarefa.net/detail/BIM-1055233
American Medical Association (AMA)
Otsuka, Takero& Yamasaki, Ryuichi& Shimazaki, Tateshi& Yoshino, Fumihiko& Sasaguri, Kenichi& Kawata, Toshitsugu. Effects of Mandibular Retrusive Deviation on Prefrontal Cortex Activation: A Functional Near-Infrared Spectroscopy Study. BioMed Research International. 2015. Vol. 2015, no. 2015, pp.1-6.
https://search.emarefa.net/detail/BIM-1055233
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1055233