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치은염 환자에서 저출력 이산화탄소 레이저의 염증완화 효과에 관한 연구
송현종,김병옥,장현선,Song, Hyun-Jong,Kim, Byung-Ock,Jang, Hyun-Seon 대한치주과학회 2008 Journal of Periodontal & Implant Science Vol.38 No.4
Purpose: In this study, we compared low-power $CO_2$ laser treatment to ultrasonic scaling, which is generally approved as a power-driven mechanical instrumentation, and evaluated both of these treatments regarding their clinical effectiveness and change in the volume of in GCF. Material and methods: 20 patients who had gingivitis were selected. all of patients has no systemic problems. Randomly selected, one quadrant received ultrasonic scaling only, another quadrant received ultrasonic scaling and $CO_2$ laser irradiation, the other quadrant received $CO_2$ laser irradiation only. Clinical parameters measured at baseline, 1 weeks, 2weeks, 4weeks and 8weeks. Result: Pocket probing depth and clinical attachment level were not changed during study period. Gingival index of all group were improved after treatment. At 1 weeks after treatment, Gingival index of ultrasonic scaling group was only significantly different compared to control group. At 2 weeks after treatment, gingival index of all experimental group were significantly different compared to control group. At 4 and 8 weeks after treatment, gingival index of all group were increased, but experimental group were lower than control group. Sulcus bleeding index was similar to the results of gingival index. At 1 weeks after treatment, all experimental group were significantly different compared to control group and it maintained during study. At 2 weeks after treatment, sulcus bleeding index of all group were lowest during study. Gingival crevicular fluid were measured with $Periotron^{(R)}$ 8000($Oraflow^{(R)}$, Inc. USA). At baseline, all group were showed moderately severe condition. At 1 week after treatment, laser treatment only group was reduced quantity of gingival crevicular fluid mostly, and all group were reduced quantity of gingival crevicular fluid. At 2 weeks after treatment, all group were health state. At 4 and 8 weeks after treatment, all group were showed recurrent of inflammation, and control group was the most significantly increased. Conclusion: This study showed that the effects of $CO_2$ laser treatment were similar to conventional ultrasonic scaling and this result remained longer than plaque control only. These results suggest possibility of $CO_2$ laser treatment for altered periodontal therapy.
송현종,장현선,김병옥,Song, Hyun-Jong,Jang, Hyun-Seon,Kim, Byung-Ock 대한치주과학회 2007 Journal of Periodontal & Implant Science Vol.37 No.3
Marginal tissue recession makes problems like esthetics, root caries, hypersensitivity and plaque accumulation. Request for root coverage is higer than ever, especially esthetic problems involved. So techniques for root coverage hav been developed. There are some kinds of surgical techniques using soft tissue for root coverage. For example, free gingival graft, kinds of pedicle flap, subepithelial connective tissue graft(SCTG), and so on. Subepithelial connective tissue graft has many advantage for root coverage, that is less pain on donor site, good blood supply for graft, and more esthetic result. For this reaseon, this case report was performed to evaluate the effect of root coverage using subepithelial connective tissue graft. Three patients has Miller's class I marginal tissue recession and one patients has Miller's class III marginal tissue recession. The following period is 36.5 month on average. The results are as follows: 1. Root coverage of 100% was obtained in 5 of 6 defects, and 80% was obtained in 1 of 6 defects, The mean root coverage was 96,6% in six cases on 4 patients. 2. The mean root coverage was 3.83mm and mean recession depth decreased from 4mm to 0.16mm. 3. The mean width of clinical attached gingiva increased from 1.5mm to 4mm. The mean width of gained attached gingiva after surgery was 2.5mm. 4. The mean follow up period was 36.5 months. The longest follow up period was 50 months and the shortest follow up period was 22 months. 5. The result that obtained by surgery was stable during follow up period. Within the above results, root coverage with SCTG is an effective procedure to cover marginal tissue recession defect with long term stability.
송현종(Hyun-jong Song) 한국보건교육건강증진학회 2015 보건교육건강증진학회지 Vol.32 No.3
Objectives: The purpose of this study was to investigate risk factors for chronic ADL, IADL disability. The study explored clinical and socio-demographic risk factors of functional status decline. Methods: Data from the Survey of Living Condition of Elderly 3-year panel study were analyzed. The study subjects were 5,928 community-dwelling people aged 65 years or older who were no disability in ADL and IADL at baseline. Predisposing factors, pathology, impairment, and functional limitations were regarded as risk factors. Logistic regression analysis was used. Results: During the 3-year study period, 3.9% participants developed chronic ADL disability, 9.4% participants were IADL disabled. After controlling for predisposing factor, the best predictors for ADL disability at 36 months were fall as a pathology factor, cognitive decline, disability judgement, lower limb functional limitation. Comorbidity, fall, cognitive decline, disability judgement, lower limb and upper limb functional limitation were risk factors for IADL disability. Conclusions: Health promotion program focusing elderly is essential to prevent ADL and IADL disability. Mobilizing physical activity should be included in health promotion program for elderly.
송현종(Hyun Jong Song) 한국상담학회 2000 상담학연구 Vol.1 No.1
The purpose of this study was to explore the predictors of attitudes toward school counseling. The number of subjects were 547 high school students(male: 285, female: 262/ 1st grade: 161, 2nd grade: 221, 3rd grade: 165). The statistical methods such as ANOVA, correlational analyses, and stepwise regression analyses were used to assess the relationships among the nine variables induded in this study. The main results were as follows: First, student`s trust in his(her) school teacher, the usefulness of student`s previous counseling experiences with his(her) teachers, and student`s right understanding of counseling were proved as the most significant predictors of attitudes toward school counseling. Second, the variables such as extroversion of personality, the severity of problem concerns, and the attributional dimension of controllability could be the predictors only in the specific groups classified according to sex or grade. Finally, there were no significant differences in the attitudes toward school counseling between male and female. And so among 1st grade, 2nd grade, and 3rd grade.
초등학교 자기장 수업에서 한 교사가 경험한 딜레마에 관한 고찰
송현종 ( Hyun Jong Song ),이종봉 ( Jong Bong Lee ),이경호 ( Gyoung Ho Lee ) 한국초등과학교육학회 2013 초등과학교육 Vol.32 No.1
This study described a teacher`s dilemma case caused by students` questions and an endeavor to resolve the dilemma. The teacher was faced with the dilemma of whether or not to give answers to the students` questions: Students` meaningful questions should be dealt in class. However, immediate answers for the questions would be difficult for the students to understand. In addition, offering text-based immediate answers would be criticized by a perspective on meaningful science education. Not only ignoring questions but also offering text-based answers could be the reason for a rupture between student and nature. And this made the teacher`s dilemma. In this study, We try to address this dilemma and discuss why students should learn text with experience of nature in science class.
송현종 ( Hyun Jong Song ),조성은 ( Seong Eun Cho ) 대구대학교 한국특수교육문제연구소 2005 특수교육저널 : 이론과 실천 Vol.6 No.4
The roles and responsibilities of school counselors changed dramatically over the past 50 years. In the early 1950s, school counselors primarily provided vocational/career guidance for high school students. The role gradually expanded to a broader range of students and of concerns. So school counselors are now being held responsible for providing preventative and supportive services for students with disabilities who are included in regular public schools. If school counselors are to be competent in providing such services, they must understand the cognitive, affective, and social problems of these students, be sensitive to their psycho.social needs, and be knowledgeable of effective counseling interventions. With these abilities, what is more important things which school counselors must bear in mind are their attitudes and roles in school counseling. Because there is little hope for effective helping with little understanding of the school counselor``s attitudes and roles. This study reviewed the characteristics and needs of students with mild disabilities, the concepts and trend of inclusion, the problems of school counseling for students with disabilities, and the attitudes and roles required to be a competent school counselor who is working with students with disabilities, their parents and teachers, and school administrators. As results of this study, six attitudes which school counselors should bear in mind and six roles which school counselors should put into practice were suggested.