• Title/Summary/Keyword: Brushing

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Evaluation of Characteristics of Wax-treated Paper Depending on Coating Methods (도포방식에 따른 밀랍지 시제품의 특성 분석)

  • Seo, Jin-Ho;Choi, Kyoung-Hwa;Park, Ji-Hee;Kang, Yeong-Seok;Yoon, Kyoung-Dong
    • Journal of Korea Technical Association of The Pulp and Paper Industry
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    • v.41 no.2
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    • pp.64-69
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    • 2009
  • Cultural heritages represent the histories and intellectual level of a country. The Annals of Joseon Dynasty are regarded as the most valuable resources containing the record of Korean history. In some periods, wax-treated paper was used as the material of the Annals of Joseon Dynasty. Many previous studies have focused on the development of paper used as the material of the Annals of Joseon Dynasty, but the manufacture method of wax-treated volumes and the degradation mechanism of wax have been not fully understood yet. The purposes of the present study are to produce various kinds of wax-treated paper using by different coating methods and to analyse the morphological properties of wax-treated paper. The analysis of SEM demonstrates that beeswax treated paper made by brushing method produces flatter surface and more excellent penetration. Wax layer is produced on the cross section of beeswax treated paper as the increase of coating amount.

A study about the relationship between mouth-odor survey and self awareness (구취의 객관적 수치와 주관적 인식 간의 관계 조사)

  • Kim, Min-Young;Lee, Hye-Jin
    • Journal of Korean society of Dental Hygiene
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    • v.8 no.2
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    • pp.13-22
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    • 2008
  • The purpose of this study is to analyze the correlation between cause and the element of mouth odor through measurement and identification of mouth odor and is to apply to effective method for elimination of halitosis, Subjects were 150 people who visited Dong Pusan College and lived in Pusan Cross-sectional survey was used and mouth odor was measured by Oralchroma. Oral examination proceeded with status of tongue plaque distribution and calculus index, Statistical analysis was performed with SPSS version 13.0 for window Among 150 people, 67.3% subjects thought they had halitosis, 89.3% people felt that their mouth odor were the severest as soon as wake-up, Tongue was serious place for halitosis by 53.3% subjects Methylmercaptan and dimethyl sulfide showed the highest correlation by 0.549 index score, Moreover, methyl mercaptan was observed the correlation with brushing time in 0.190 index score and with food intake in 0.177(P<0.05). In conclusion, brushing time and food intake were correlated with mouth odor.

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Contemporary Update of Mouth Rinse (구강양치액의 최신 경향)

  • Lee, Byoung-Jin
    • The Journal of the Korean dental association
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    • v.55 no.2
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    • pp.180-188
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    • 2017
  • Introduction : Inadequate oral health control is a major risk of oral diseases. Regular home-based care is essential to maintain good oral hygiene. In particular, mouthrinses can support conventional tooth brushing in reducing accumulation of oral plaque. Effect : Antimicrobial mouthrinses are used as part of daily oral care to reduce plaque and gingivitis. Mouthrinses contains fluoride could help remineralization of enamel and dentin. The most common molecules contained in mouthrinses are chlorhexidine, essential oils, cetyl pyridinium chloride, triclosan, hyaluronic acid. Currently, chlorhexidine is the most efficacious compound, with both antiplaque and antibacterial activities. Similar results are reported for essential oils and cetyl pyridinium chloride, although with a somewhat reduced efficacy. Considering the adverse effects of chlorhexidine and its time-related characteristics, this molecule may best be indicated for acute/short term use, while essential oils and cetyl pyridinium chloride may be appropriate for long-term, maintenance treatment. Conclusion and suggestion : Antimicrobial mouthrinses are safe and effective, and when used in conjunction with brushing and flossing, they are an important method of reducing plaque and gingivitis. To improve compliance, dental health care professionals should adapt oral health care recommendations to fit patients' specific needs.

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A STUDY ON PLAQUE ACCUMULATION FOLLOWING THE WEARING OF REMOVABLE PARTIAL DENTURE (국소의치 장착시 잔존치아의 치태침착에 관한 연구)

  • Joo, Dae-Won;Chang, Ik-Tae;Kim, Kwang-Nam
    • The Journal of Korean Academy of Prosthodontics
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    • v.26 no.1
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    • pp.197-206
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    • 1988
  • The purpose of this study was to investigate the effect of wearing the removable partial denture on plaque accumulation. Twelve removable partial denture cases were examined. Patients were recalled three consecutive 3 day periods. Plaque index was measured after each 3 day period. (1) not wearing the denture, (2) wearing the denture, (3) wearing the denture after intensive tooth brushing instruction. The results were as follows: 1. Plaque indices of all the remaining teeth were higher following the wearing of removable partial denture than those of teeth not wearing the denture and those of teeth after intensive tooth brushing instruction. 2. Plaque indices showed statistical difference between all the tooth surfaces which were in contact with the denture and those which were not. 3. Plaque indices showed no statistical difference between buccal and lingual surfaces which were in contact with the denture and those which were not. 4. Plaque indices showed statistical difference between proximal surfaces which were in contact with the denture and those which were not.

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A study of oral health behavior according to the oral health education and knowledge: focus on the public health center visitors at Gyeonggi-do districts (구강보건교육 및 지식도와 구강보건행태와의 연관성에 관한 연구: 경기 일부 지역 보건소 내원 환자들을 대상으로)

  • Nam, Shin-Eun;Cho, Mi-Hyang;Jun, Soo-Kyung
    • Journal of Technologic Dentistry
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    • v.41 no.4
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    • pp.319-326
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    • 2019
  • Purpose: This study aimed to verify the oral health behavior according to the oral health education experience and knowledge who visit public health center at Gyeonggi-do districts. Methods: The research has come into a survey from 2th on March to 27th on April 2018 on the youth and the century where is located in Gyeonggi-do public health centers. Results: There were statistically significant differences in the number of brushing, correct tooth brushing, and the use of oral aids in the presence of oral health education experience(p<.05). Oral health education has been shown to affect knowledge and behavior when oral health education experience is high. Conclusion: Periodic oral health education should be further strengthened, not once for the prevention of proper oral care and oral illness.

Effect of Raising Process of Warp-knitted Fabric Containing Silver Nano-particles (기모공정에 따른 나노은입자함유 경편성물의 제품 특성에 관한 연구)

  • Son, Eun-Jong;Jung, Sung-Hoon;Hwang, Young-Gu;Jung, Hyun-Mi
    • Textile Coloration and Finishing
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    • v.22 no.4
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    • pp.356-361
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    • 2010
  • This study was aimed to investigate the antibacterial efficiency of silver nano-particles and the dyeing properties of a brushed warp-knitted fabric. The properties of the brushed warp-knitted fabric containing silver nano-particle by field production processes were evaluated by analyzing its silver contents, antibacterial activity, color difference, exhaustion curve, fastness and tearing strength. Bacterial reduction ratio amounts to 91.4 and 99.9 for Staphylococcus aureus and Klebsiella pneumoniae respectively. As the brushed pile length of its fabrics is longer, the exhaution rate of disperse dye becomes higher. The brushing process of its fabrics reduces the tearing strength. The results indicate that the brushed warp knitted fabric containing silver nano-particle can be a practically promising product.

Factors that influence the oral health status between Korean adults living in Korea and the US (재미 한국인과 우리나라 성인의 구강건강상태에 영향을 미치는 요인에 관한 연구)

  • Kim, Youn-Hwa
    • Journal of Korean society of Dental Hygiene
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    • v.13 no.4
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    • pp.597-604
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    • 2013
  • Objectives : The purpose of the study is to compare and investigate oral health status between Korean adults living in Korea and the US. Methods : Subjects were 1,785 persons including 399 Korean adults living in Virginia, US and those from the second year 2011 of the 5th National Health and Nutrition Survey. Darta were analyzed using SPSS 12.0 for frequency analysis, t-test, one-way ANOVA, and post-hoc Tukey. Results : 1. In general characteristics, adult living in Korea revealed higher DT and DMFT than those in the US. 2. In oral health status, adult living in Korea revealed higher DT and DMFT than those in the US. 3. The variables affecting oral health status in Korean adults in the US were age, private health insurance and number of tooth brushing. 4. The variables affecting oral health status in adults in Korea included gender, age, private health insurance, smoking, drinking, use of secondary oral hygienic products and number of tooth brushing. Conclusions : It is necessary to emphasize the importance of oral health care and to establish the oral health education in dental care agencies.

Effects of Treatment Process and Brushing Condition on Mechanical Properties of Brushed Fabrics (II) -Drapability and Wrinkle Recovery of Brushed Fabrics- (기모직물의 가공공정 및 기모횟수가 역학적 특성치에 미치는 영향(II) -드레이프성 및 방추성을 중심으로-)

  • Kwon, Hyun-Sun;Kwon, Oh-Kyung;Sung, Su-Kwang
    • Journal of the Korean Society of Clothing and Textiles
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    • v.18 no.5
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    • pp.595-601
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    • 1994
  • This study was accomplished to investigate drape coefficient and wrinkle recovery of brushed fabrics according to treatment processes and brushing conditions. For this study, grey fabrics of blended ratio of polyester 65% : cotton 35% were bleached and dyed. These fabrics were then brushed 1, 3, 5 and 7 times. Drape coefficient and wrinkle recovery of brushed fabrics were measured by drape tester and shirley crease recovery tester respectively. The experimental results were analysed statistically to relate mechanical properties, handle, drapability, and wrinkle recovery 1) Drape coefficients of dyed fabric showed lower values and wrinkle recovery showed higher ones than those of bleached and dyed fabrics. Especially dyed fabric brushed 3 times showed good appearance and form stability. 2) Considering the blocked properties that contribute to the drape coefficient and wrinkle recovery of brushed fabrics, bending and shearing properties had a high degree of correlation with brushed fabrics, and 2HB/W showed a high positive correlation with drape coefficient and a high negative correlation with wrinkle recovery.

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Solid Graphic Expression in Fashion Illustration Using CAD (CAD를 이용한 패션 일러스트레이션의 회화적 입체표현에 관한 연구)

  • 신상무;박영옥
    • Journal of the Korean Society of Costume
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    • v.44
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    • pp.131-141
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    • 1999
  • The purpose of this study was to investigate the various expressions with materials in fashion illustration using CAD comparing with hand work. The design motive for this study is to be selected from Bell Epoque era which was the revolutionary period in fashion illustration. The results of this study were as follows: 1. By using CAD, water color was well expressed to repeat brushing for the clarity, darkness, and brightness. It was more effective to use CAD in layering or duplicating complex and intricate patterns because the base color gets to be concealed under the repeated oil pastel. Acryl, like oil pastel, was easily absorbed in canvas, so it is effective to repeat brushing for expressing pure color. It was inconvenient to use wax crayon for controlling the moderate opacity because wax crayon absorbed water color dye stuffs, so crayon line was concealed when repetitions were being done. 2. The advantage of using CAD was convenience for getting rid of troublesome process and inefficient works. Also, CAD had a good tool like oil pastel in the use of coloring work by using pure color. By using CAD, various expressions on materials and texture of surface can be achieved effectively. Also, it is very strong substitute for time-saving, convenience, economic aspects from providing simple instrument, and production in the state of various kinds of paper and canvas as a method of visualization. Therefore, fashion illustration using CAD provides effective way of producing works, and gives promising vision in the future.

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