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불소 도포 방법과 적용 횟수에 따른 법랑질의 표면 특성
장선옥 ( Sun Ok Jang ),최은미 ( Eun Mi Choi ),오상환 ( Sang Hwan Oh ),강민경 ( Min Kyung Kang ),김광만 ( Kwang Man Kim ) 한국치위생과학회 2011 치위생과학회지 Vol.11 No.2
본 연구는 전문가불소도포로 사용되고 있는 1.23% APF 젤과 2% NaF 용액의 적용 횟수와 방법을 달리하여 적용시 치아 경조직의 내산성에 영향을 줄 수 있을지 비교분석하였으며, 다음과 같은 결과를 얻었다. 1. 불소도포를 실시한 모든 그룹에서 표면미세경도가 증가하였고(p<0.05), 불소도포의 횟수를 달리하는 경우 2% NaF 용액을 4회 이온 도포한 그룹에서 표면미세경도 값이 가장 높았다. 2. pH-cycling model 적용 후의 표면미세경도의 변화비교는 모든 Group에서 불소도포 후에 비해 감소하였지만 불소 적용을 하지 않은 Control group은 가장 낮은 표면미세경도값을 나타내었으며, Control group과 전문가불소도포를 한 Group간에 표면미세경도값은 유의한 차이를 나타내었다(p<0.05). 3. 불소도표 하기 전 Baseline에 비해 pH-cycling model 적용 후 표면미세경도 값은 Control group에서 가장 많은 소실 값을 나타내었고, NaF 용액을 이용하여 4회 도포한 Group이 가장 적은 표면미세경도 소실값을 나타내었으며, 유의한 차이를 보였다(p<0.05). 4. Control group에 비해 l회씩 불소 도포한 Group에서 법랑질의 탈회가 적게 관찰되었고, 4회 불소 도포한 Group의 표면은 Control group과 1회씩 불소 도포한 Group에 비해 규칙적인 표면 양상을 보였다. 이상의 실험결과를 종합해보면 법랑질 산부식증 유발환경에서 2% NaF 용액을 4회 이온 도포하는 전운가불소도 포법이 법랑질 탈회를 최소화할 수 있는 방법으로 나타났다. The aim of this study was to compare the effects on the resistance to demineralization by the frequency and method of fluoride application in vitro. ninety-one human enamel specimens were embedded in acrylic resin with the labial surfaces exposes. The specimens were divided into 7 groups; (1) non-treated; (2) 1.23% APF gel 1 time; (3) 2% NaF sol 1 time; (4) 2% NaF sol iontophoresis 1 time; (5) 1.23% APF gel 4 time; (6) 2% NaF sol 4 time; (7) 2% NaF sol iontophoresis 4 time. All the groups were immersed in the remineralizing solution (RS) before baseline and divided into 7 test groups of 13 specimens each. All the specimens were exposed to a pH-cycling model which consisted of demineralization (6 hours) and remineralization (18 hours) for 5 days. The Vickers surface micro-hardness number of all the specimens was measured using microhardness tester and the specimen surfaces were observed by scanning electron microscope (SEM). The results were analyzed using one-way ANOVA followed a Tukey`s multiple comparison at a significance level of 0.05. The group 7 showed higher level of microhardness after Fluoride application. The group 1 showed lowest level of microhardness but group 7 showed higher level of microhardness after pH-cycling model, there were significant differences between groups. After the modified pH-cycling, the 2% NaF solution with the iontophoresis group showed the best resistance to demineralization(p<0.05). These results were also confirmed by SEM. The fluoride iontophoresis method was the most effective of the regimens in increasing the acid resistance of the enamel.
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장선옥(Jang Sun Ok),정창덕(Jung, Chang Duk),박찬혁(Park, Chan Hyuk) 한국IT서비스학회 2018 한국IT서비스학회 학술대회 논문집 Vol.2018 No.-
본 논문은 건축용 장식 패널에 관한 것으로서, 더욱 상세하게는 건물의 내벽이나 외벽 또는 담장 등에 시공이 가능할 뿐만 아니라 시공이 매우 편리하고 다양한 종류의 장식 패널을 부착할 수 있도록 건축용 장식 패널을 제공하는데 있다. 장식재, 눈메움부, 눈메움판에 의해 3도 이상의 색상을 표현할 수 있어 다양한 색상 연출이 가능할 뿐만 아니라 시공이 편리하고 신속하게 이루어지며, 특히 저렴한 비용으로 각각 다른 형상의 금속판을 절곡하여 다양한 장식재를 시공하는 것이 가능하며, 시공 후에는 중량이 가볍게 되는 등의 여러가지 효과를 가진다.
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홍삼에서 사포닌 추출과정 중 분리된 홍삼오일의 화학적 특성과 항산화 활성
장선옥 ( Sun Ok Jang ),김미라 ( Mi Ra Kim ),홍광원 ( Kwang Won Hong ) 한국산업식품공학회 2012 산업 식품공학 Vol.16 No.4
This study investigated the chemical characteristics and cosmetic applicability of the red ginseng oil produced in a process where saponin is extracted from red ginseng. The acid, peroxide and iodine values of 1% red ginseng oil diluted with Tween 80 were 0.265, 0.387 and 0.64, respectively. Antioxidant activity of 1% red ginseng oil evaluated according to the DPPH free radical scavenging assay exhibited 70% inhibition relative to α-tocopherol. The total polyphenol content, determined according to the Folin-Ciocalteu method, was 243 mg/100 g. Tyrosinase inhibitory activity of 1% red ginseng oil was about 14% inhibition relative to L-ascorbic acid. On the other hand, red ginseng oil was not effective in inhibiting the activity of elastase as well as in inhibiting the growth of Staphylococcus aureus and Escherichia coli.
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치위생학과 구강위생교육실에 내원한 대상자의 치과공포 원인과 구강건강관리행태
이준미 ( Joon Mee Le ),장선옥 ( Sun Ok Jang ) 한국치위생학회 2010 한국치위생학회지 Vol.10 No.4
Objectives: This study is aimed to seek how to promote oral health care by leading the clients with dental fears to change their behaviors in oral hygiene care based on the analysis of the relationships between the dental fears and oral health care behaviors of the clients who visit the Dental Hygiene Education Room. Methods: This study analyzed the 361 dental hygiene records of the subjects with finished treatment and accurate records among a total of 370 clients who had received dental hygiene care at the Dental Hygiene clinic in Y University from March 2007 till June 2009. According to their general features, the study analyzed whether they had any dental fears and why such fears occurred and conducted Chi-square test to compare their oral hygiene care experiences and behaviors with dental fears. Data analysis was made using the SPSS 12.0K for Window, with level of significance set at 0.05. Results: 1. In terms of dental fear or non-fear, the comparison by gender showed that women had a higher level than men, with 76 women(47.2%) answering yes; the comparison by age showed that the age group of 30 years old or older had a higher level than other groups. 2. In terms of dental fear reasons, the past pain experiences recorded 34.2%, showing the highest rate. 3. In addition, dental fears had influences on regular dental examination, scaling and dental hygiene education and the subjects without dental fear showed higher levels in terms of tooth-brushing frequency and time. Conclusions: To control the past pain experiences, future dental treatment should place priority on preventive treatment and get clients to cope with pains through the preliminary education with pains. Besides, to make an effective oral health care of the clients with dental fears, dental hygienists should control the fears of the clients and perform an appropriate oral health care for them using the communication techniques to make friendly and trustworthy impressions. (J Korean Soc Dent Hygiene 2010;10(4):705-715)
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