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EEG Study for the Effects of Mouth Breathing on Brain Functions
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이경진 Kyung-jin Lee , 이송이 Song-yi Lee , 박소영 So-young Park , 장소라 So-ra Jang , 강창기 Chang-ki Kang |
KJSES 19(4) 119-126, 2016 |
ABSTRACT
In this study, we investigated the effects of mouth breathing on brain activity through electroencephalogram (EEG). EEG was performed on 12 healthy volunteers of age ranging from 21 to 27 years (male: female = 6:6, non-smoker). Brain waves on resting state (Rest_N/Rest_M) and auditory-language stimuli state (Eng_N/Eng_M) were recorded during mouth and nose breathing. Four different regions (R1~R4) were classified based on the brain functionality. And each channel (e.g., Pf1 and Pf2) and frequency (α, β, γ, and θ) were analyzed using their absolute power ratios of fast Fourier transform (FFT). The results showed that there was no significant difference between Rest_N and Rest_M. Eng_N had significantly higher brain activity than Rest_N; on the other hand, there was no significant difference between Rest_M and Eng_M. These results demonstrate that mouth-breathing on resting state does not induce any significant effects on brain activity and/or functionality, even though it causes subtle temporary inconvenience. In addition to the uncomfort, the brain activity can be adversely influenced by mouth-breathing, which could lower the cognitive skills under certain circumstances.
keyword : 뇌전도, 호흡, 산소, 뇌기능, 집중력, EEG, Breathing, Oxygen, Brain function, Attention
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A Study on the Relationship Between Halitosis and Dentures
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이경희 Kyung Hee Lee |
KJSES 19(4) 127-136, 2016 |
ABSTRACT
The main purpose of this study was to observe the relationship of denture and halitosis and to investigate the influence with oral health indexes. Also we examined the contribution factors to subjective awareness of halitosis by denture condition. A total sample of 103 elderly people were answered questionnaire and all collected survey data were processed for data analyses. Based on general characteristics, the study of the halitosis showed higher score which is older age, oral health attitude, and living together. The result showed that the use of denture, dental intelligent quotient (dental IQ) and type of denture were significantly correlated with halitosis. These results indicated that halitosis was affected by denture and oral health index. According to these findings, it is necessary to develop and apply the oral health promotion program which is include the management of halitosis especially for elderly person.
keyword : 의치, 구취, 구강건강, 구강보건지수, 구강지식, Denture, Halitosis, Oral Health, Oral Health Index, Dental IQ
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