• 한국콘텐츠학회논문지
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• 제14권3호
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• pp.250-258
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• 2014

본 연구는 교정치료 관련인자들이 구강건강영향지수(OHIP)에 주는 영향을 파악하여 교정환자의 효과적인 건강관리에 도움을 주고자 강원지역 주민을 대상으로 실시하였다. 대상자의 OHIP의 평균은 2.97이며 신체요인 평균은 3.01, 심리요인 평균은 2.93로 교정치료는 심리요인에 더욱 영향을 주며 구강건강영향지수 10항목 중 가장 영향을 많이 미치는 항목은 평균 2.66으로 '치아형태로 인해 창피한 적이 있었습니까'으로 조사되었다. 일반적인 특성 중 OHIP에 유의하게 영향을 준 특성은 연령, 종교, 직업, 수입, 흡연여부로 나타났다(p<0.05). 연령은 20대 이하가 2.53으로 영향을 가장 많이 주며 직업은 생산/판매직은 2.56으로 영향을 미치는 것으로 나타냈다(p<0.05). 수입은 400만원 초과가 2.83, 2.78로 수입이 많을수록, 흡연여부는 흡연자가 비흡연자에 비해 영향을 많이 미치며 것으로 조사되었다(p<0.05). 교정치료 특징이 구강건강영향지수(OHIP)에 건강인지도로 나타났다(p<0.05). 교정치료를 한 이유에서는 '저작 시 불편감'이 2.69, 2.67로 나타났다(p<0.05). 교정기간은 '1-2년'이 2.80, 2.74로 영향을 미치는 것으로 나타났다(p<0.05). 교정치료의 후회여부는 '후회한다'가 2.65, 2.60로 조사되었다(p<0.05). 교정치료의 특징과 OHIP의 상관관계를 분석한 결과 교정치료를 하는 이유, 구강건강인지도, 교정치료 후회여부가 통계적으로 유의하게 상관관계를 나타냈다. 이러한 결과를 바탕으로 교정환자의 신체적 정신적인 면에서 치료과정에 도움을 주고 또한 건강한 삶의 질 향상을 위하여 지속적인 노력이 필요하리라 사료된다.

• 한국환경보건학회지
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• 제37권2호
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• pp.102-112
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• 2011

Objectives: The purpose of this study is to analyze the effects of chronic exposure by welders to manganese (Mn) through an analysis of the degree of brain activity in different activities such as cognition and motor activities using the neuroimaging technique of functional magnetic resonance imaging (fMRI). The neurotoxic effect that Mn has on the brain was examined as well as changes in the neuro-network in motor areas, and the usefulness of fMRI was evaluated as a tool to determine changes in brain function from occupational exposure to Mn. Methods: A survey was carried out from July 2010 to October 2010 targeting by means of a questionnaire 160 workers from the shipbuilding and other manufacturing industries. Among them, 14 welders with more than ten years of job-related exposure to Mn were recruited on a voluntary basis as an exposure group, and 13 workers from other manufacturing industries with corresponding gender and age were recruited as a control group. A questionnaire survey, a blood test, and an fMRI test were carried out with the study group as target. Results: Of 27 fMRI targets, blood Mn concentration of the exposure group was significantly higher than that of the control group (p<0.001), and Pallidal Index (PI) of the welder group was also significantly higher than that of the control group (p<0.001). As a result of the survey, the score of the exposure group in self-awareness of abnormal nerve symptoms and abnormal musculoskeletal symptoms was higher than those of the control group, and there was a significant difference between the two groups (p<0.05, respectively). In the correlation between PI and the results of blood tests, the correlation coefficient with blood Mn concentration was 0.893, revealing a significant amount of correlation (p<0.001). As for brain activity area within the control group, the right and the left areas of the superior frontal cortex showed significant activity, and the right area of superior parietal cortex, the left area of occipital cortex and cerebellum showed significant activity. Unlike the control group, the exposure group showed significant activity selectively on the right area of premotor cortex, at the center of supplementary motor area, and on the left side of superior temporal cortex. In the comparison of brain activity areas between the two groups, the exposure group showed a significantly higher activation state than did the control group in such areas as the right and the left superior parietal cortex, superior temporal cortex, and cerebellum including superior frontal cortex and the right area of premotor cortex. However, in nowhere did the control group show a more activated area than did the exposure group. Conclusions: Chronic exposure to Mn increased brain activity during implementation of hand motor tasks. In an identical task, activation increased in the premotor cortex, superior temporal cortex, and supplementary motor area. It was also discovered that brain activity increase in the frontal area and occipital area was more pronounced in the exposure group than in the control group. This result suggests that chronic exposure to Mn in the work environment affects brain activation neuro-networks.