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조자원(Cho, Ja-Won) 대한치과의사협회 2010 대한치과의사협회지 Vol.48 No.6
Dental caries is one of the most common chronic diseases in the world, which are caused by complex actions of oral such factors as the bacteria, food, tooth, saliva and other factors. Although this is one of the typical oral diseases, we can acquire a high prophylactic effect by use of proper prophylactic measures and management. At the beginning of the 1940s, fluorine was first introduced to prevent dental caries which now is widely used. The fluorine application effects are varied from different concentrations and categories of fluorine, and different application method and frequency, etc. There is great debate on the best application method at the present. Dental clinics use iontophoresis as the application method and use it clinically. It uses APF (1.23%, Acidulated phosphate fluoride, APF) and uses 2% NaF so as to encourage more absorption of fluorine. Recently, fluoride varnish, which uses admixture mucus of colophony resin into 5% NaF, and a variety of forms that can be applied in the oral cavity are still being continuously researched. When using fluoride topical application on the enamel surface, it was highly recommended that fluoride varnish be used directly after fluoride iontophoresis rather than fluoride iontophoresis only or fluoride varnish by itself. The new method is more effective and does not need repeated application.
치아우식증 유발 세균에 대한 CPC 함유 구강청정제의 항균효과
조원호 ( Won-ho Cho ),조자원 ( Ja-won Cho ),유현준 ( Hyun-jun Yoo ),신경훈 ( Kyong-hoon Shin ),신기해 ( Gi-hae Shin ),전열매 ( Yeol-mae Jeon ),이종천 ( Jong-cheon Lee ) 대한예방치과·구강보건학회 2021 大韓口腔保健學會誌 Vol.45 No.2
Objectives: The purpose of this study was to evaluate and report the antibacterial efficacy in relation to oral disease-causing bacteria using a mouthwash containing 0.05% CPC in an in vitro test. Methods: The sterilization test and susceptibility assay of mouthwash containing 0.05% CPC were investigated against Streptococcus mutans, Streptococcus sobrinus, and Lactobacillus acidophilus; Streptococcus sanguinis as oral bacteria related to dental caries; Enterococcus faecalis as apical periodontitis-related bacteria; and Actinomyces israelii, Aggregatibacter actinomycetemcomitans, Fusobacterium nucleatum, Prevotella intermedia, Prevotella nigrescence, Porphyromonas gingivalis, Tannerella forsythia, Treponema denticola, and Filifactor alocis as periodontal disease-related bacteria. Results: In the sterilization test, most of the bacteria had more than 99.99% sterilizing power for all samples but compared to other bacteria, the sterilizing power of these samples was not successful for L. acidophilus and E. faecalis bacteria. When comparing the sterilization power between the samples, sample 3 (0.05% CPC+20% ethanol) was the strongest. Conclusions: In the antimicrobial activity test, sample 3 inhibited growth at the lowest concentration overall.
김소민,조자원,황경숙,김욱태,강유화,김남중,Kim, So-Min,Cho, Ja-Won,Hwang, Kyung-Sook,Kim, Wook-Tae,Kang, You-Hwa,Kim, Nam-Joong 대한치과기공학회 2011 대한치과기공학회지 Vol.33 No.2
Purpose: The author performed experiments on the microhardness and the marginal fitness of composite resins after polymerizing 4 kinds of composite resins on MOD standard specimens. Methods: For this study, in order to compare the microhardness and the marginal fitness of 4 kinds of composite resins. Results: The results are as follows. 1. In case of the microhardness, Tescera scored the highest among the four kinds of composite resins. 2. In case of the marginal fitness, Premise Indirect scored the highest. However, there was no statistically significant difference, all staying in clinically practical range. 3. Considering the above results, among the four kinds of composite resins, the author advises to use Tescera during teeth restoration which scored the highest in the micro- hardness. Conclusion: Conclusion: All of the composite marginal fitness were within the clinically useful range.
커뮤니티케어 기반의 방문노인구강관리 중재 프로그램 개발을 위한 기초연구
장종화 ( Jong-hwa Jang ),조자원 ( Ja-won Cho ),김여주 ( Yeo-ju Kim ),기지윤 ( Ji-yun Ki ),조경숙 ( Kyung-sook Jo ),김지량 ( Ji-ryang Kim ),박정은 ( Jung-eun Park ),김다희 ( Da-hui Kim ) 대한예방치과·구강보건학회 2020 大韓口腔保健學會誌 Vol.44 No.3
Objectives: We evaluated the level of oral health status and oral health behavior in the elderly prior to their participation in a visiting oral health care intervention program as part of a community healthcare project in Cheonan city, South Korea. Methods: The oral hygiene conditions, oral health behaviors, and oral senility of 64 elderly people subject to community care were measured during the period January 1 to February 15, 2020 using dental health surveys and questionnaire-based interviews conducted in line with World Health Organization standard criteria. Results: The systematic disease retention rate of the elderly in this study was 90.6%, followed by hypertention (70.7%), and diabetes (51.7%). Scores were 1.69 out of 5 for subjective health evaluation, 1.8 out of 5 for subjective awareness of oral health, and the number of natural teeth was 14.9 per person (average mean for elderly people 18.38-19.34). During the day, 94.9% practiced brushing, after dinner 58.9%, and before bedtime 26.8%, which shows a diminished rate of practice. The percentage of participants dissatisfied with dental treatment was high at 67.2%, and the six measures of oral sensitivity, masticatory discomfort, pronunciation discomfort, and tongue pressure, presented less than average scores. Conclusions: The level of oral health and oral health behavior of the elderly prior to the visiting oral health care community intervention program, was very poor. Therefore, the results of this study suggest that there is a need to develop a more systematic and thorough strategy to activate visiting community oral health care intervention programs.
한국 성인의 미충족 치과 치료와 DMFT index와의 관련성
정선영 ( Sun-Young Chung ),조자원 ( Ja-Won Cho ),정윤숙 ( Yun-Sook Jung ),김혜영 ( Hye-Young Kim ),김지영 ( Ji-Young Kim ),최연희 ( Youn-Hee Choi ),송근배 ( Keun-Bae Song ) 대한예방치과·구강보건학회 2017 大韓口腔保健學會誌 Vol.41 No.4
Objectives: Unmet needs for dental treatment are one of the potential contributing factors to poor oral health because oral health problems worsen if left untreated. This study aimed to demonstrate the prevalence of and the causes for unmet dental needs, and to evaluate the association between unmet needs for dental treatment and oral health status. Methods: Data on 3,883 subjects aged ≥18 years from the Korean National Oral Health Survey 2006 were analyzed. Information regarding unmet needs for dental treatment was obtained using standardized questionnaires. Eight trained dentists examined decayed, missing, or filled teeth (DMFT). Multiple regression models were built to assess the association between unmet needs for dental treatment and the DMFT scores. Results: The prevalence of perceived unmet needs for dental treatment was 34.7% among the adult Korean population. Economic constraints were the main cause (38.6%) for unmet dental needs. The average DMFT scores were higher in the subjects with unmet needs for dental treatment than in those without. In individuals with unmet needs for dental treatment within the past 1 year, the number of decayed teeth after adjusting for confounders was likely to be greater by 0.58 and that of missing teeth by 0.27 compared to that in their counterparts with no unmet dental needs in the past 1 year. Conclusions: Perceived unmet needs for dental treatment were significantly associated with poor oral health status among the adult Korean population. Further studies are needed to clarify the direct and indirect effects of unmet needs for dental treatment on an individual’s oral health status by investigating critical variables of the causal pathways among perceived dental needs, dental care utilization, and oral health status.
이채영 ( Chae-young Rhee ),조자원 ( Ja-won Cho ),유현준 ( Hyun-jun Yoo ),닛타삭폼마봉싸 ( Nitthasack Phommavongsa ),안용수 ( Yong-su Ahn ),오형석 ( Hyung-suk Oh ) 대한예방치과·구강보건학회 2021 大韓口腔保健學會誌 Vol.45 No.2
Objectives: The aim of this study was to determine the dental caries experience of children in Laos. Methods: Oral examinations were performed on a total of 1,540 students in 513 primary school students, 537 middle school students, and 490 high school students and the results analyzed. Results: The dft index (decayed-filled primary teeth index) of 6-year-old primary school children was 6.04. The DMFT index (decayed-filled-missing permanent teeth index) was 1.59 in 12-year-old middle school children and 2.04 in 15-year-old middle school children. Conclusions: Caries experience in most of the age groups was on the high side. It is considered that in Laos, a treatment project to stop the progression of caries is necessary in parallel with a prevention project to lower the caries fatality rate.
박지현 ( Ji Hyeon Park ),김문숙 ( Moon Sook Kim ),조자원 ( Ja Won Cho ) 대한예방치과·구강보건학회 2010 大韓口腔保健學會誌 Vol.34 No.1
Objectives. Although, dental hygienist is an auxiliary workforce for expert and professional on dental education and preventive dental cares, they have been performed mainly in chair-side dental assisting in Korea. The aim of this study was to know the dentist`s opinions for dental hygienists roles. Methods. 2,500 sheets of questions were distributed to dentists selected in randomized by the post-mail and 555 sheets proper replied were collected and analysed. Results. Most of the private dentists hoped dental hygienists perform such items of dental service as basic dental care preparation, consulting and guides for patients, preventive dental cares, intra or extra-oral x-ray taking and routine chair-side dental assisting. Lots of the private dentists desired dental hygienists to receive the expert and professional educations or re-educations for preventive dental cares and dental educations in order th perform their roles special and professional tasks. Lots of the private dentists had opinions for dental hygienists not to manage such items of service which seemed difficult or be possible for recurrence of the dental disease or infection, otherwise, general services for dental assisting except the items written in above, were recommended to be managed by both in dental hygienists and dental assistant nurses. Conclusions. The expert and professional dental hygienists education should be needed in order to perform the dental service properly and professional, and let dental hygienists to change their roles form dental assisting to the dental education or the preventive dentistry works.