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한국 성인의 우식예방 인식과 자녀의 우식예방 실천행위조사; 한국갤럽자료분석
송근배 ( Keun Bae Song ),진혜정 ( Hye Jung Jin ),황윤숙 ( Yoon Sook Hwang ),진명욱 ( Myoung Uk Jin ),최연희 ( Youn Hee Choi ) 한국치위생과학회 2012 치위생과학회지 Vol.12 No.4
This study was to evaluate the influence of dental caries prevention-related concerned and perceived in Korean adults and oral health behavior of their first child if they had children. A cross-sectional study in 1,014 adults over 19 years old were conducted in Korean adults, asked to answer a computer-assisted telephone interview regarding their oral health-related knowledge, behavior, concerned of caries prevention and child`s behaviors such as frequencies of tooth brushing, chewing the xylitol gum and dental checkup. The statistical analysis was done by using the SPSS 19.0 program (IBM Co., Armonk, NY, USA). Awareness of caries prevention in the female than male, 40∼49 years old age group was higher. Parents of school-age children were higher level of awareness of the dental caries prevention than other group. As knowledge and behavior of dental caries prevention were higher, the child`s conduct regular oral health checkups, fluoride topical application and dental sealant was significantly higher. The higher the concerned of caries preventive, the intention of oral health behaviors and child`s oral health behaviors was more increased. Awareness of caries prevention had effect on the perception of the impact of the child`s oral health behaviors.
송근배(Keun-Bae Song),김지혜(Ji-Hye Kim),이영은(Young-Eun Lee) 대한치과의사협회 2010 대한치과의사협회지 Vol.48 No.6
Objective: Transmission of S. mutans, a major dental caries pathogen, occurs mainly during the first 2.5 years of age. Children appear to acquire S. mutans mostly from their mothers, but few studies have investigated preventive effect of xylitol to S. mutans transmission from mother to child. The aim of this study was to perform a follow-up evaluation the preventive effect of xylitol chewing gum of the S. mutans of children’s oral cavities, which included the characteristics of vertical transmission from mother to child. Methods: The mothers voluntarily participating in a women’s oral health prevention program were divided into two groups (a control and a xylitol group). The subjects were 20 mother-child pairs, who were monitored for 30 months. Xylitol chewing gum group had consumed 2 gum pellets, 3 times a day for 24 months, and then they were followed until 30 months. At baseline, 24 and 30 months whole stimulated saliva samples were collected from the mothers. Children were also recruited from 6 months to 30 months after birth and were collected their dental plaque samples. After isolation and identification, the analysis of the colony count, transmission electron microscopy and real-time RT-PCR were performed to analyze the characteristics of S. mutans. Results: The S. mutans counts decreased steadily in the xylitol group at 24 months, but increased at 30 months. The similar results were showed at their children. While the glucan synthesis was decreased at xylitol group both mother and child. The expression of gtjB, 8tfD and ftf were significantly reduced in the xylitol group both mother and child (p<0.05). Conclusions: These findings indicate that chewing xylitol gum over a long period may decrease the expression of the genes associated virulence and reduced the glucan synthesis of S. mutans, which can result the preventing the mother-to-child transmission of S. mutans.
우리나라 개원치과의사들의 은퇴 및 노후계획에 관한 조사연구
송근배 ( Keun Bae Song ),정성화 ( Seong Hwa Jeong ),정선영 ( Sun Young Chung ),박용덕 ( Yong Duk Park ),권호근 ( Ho Keun Kwon ),최연희 ( Youn Hee Choi ) 대한예방치과·구강보건학회 2010 大韓口腔保健學會誌 Vol.34 No.2
Objectives. Dentists are knowledge-based, highly-paid, and specialized rofessionals with unique professional ethics and cultures. However, their planning behaviors particularly around life planning and retirement consideration are not well understood. We investigated whether working dentists considered their retirement or not and the priority of life after retirement. Methods. A total of 2,000 dentists were selected by simple random sampling from a list of Korean dentists in 2008. The final sample size was 464. Questionnaires consisted of 10 general characteristics and 7 leisure and financial aspects on a 5-pointLikert scale. All statistical analyses were performed using SAS 9.1.3 (SAS Institute, Inc., Cary, NC, USA). Results. Dentists anticipate retiring at 61.7±7.2; the average (mean±S.D.) was 62.6±6.8 in men and 57.8±7.4 in women. The anticipated amount of money required for retirement was 1.7 billion Korean won, which differed by gender (p<0.01). Factors influencing retirement planning financial investments were the type of clinician and working hours per week. Conclusions. About two thirds of Korean dentists are preparing for their retirement and the rest of life. The Korean Dental Association should sponsor formal pre-retirement workshops and/or specific programs to increase awareness and retirement planning.
불소섭취에 따른 백서 대퇴골의 파절특성에 관한 Acoustic Emission 연구
송근배(Keun-Bae Song),이영은(Young-Eun Lee),김혜영(Hye-Young Kim),이상한(Sang-Han Lee) 대한구강악안면외과학회 2002 대한구강악안면외과학회지 Vol.28 No.1
To understand the micro-mechanical changes and the effects of the fluoride on rat’s femur after administration of sodium fluoride, the threepoint bending test, acoustic emission analysis during the three-point bending test and scanning electron microscopy were performed. The obtained results were as follows: 1. Bone strength increased in the rats given 1, 5, 10 and 20 ppm of fluoride but, there were no statistical significances (p>0.05). 2. With increasing the concentration of fluoride, most AE events released rapidly just before the maximum load and smaller events were recorded than the control group’s. The average of cumulative AE event counts until maximum load of the femur in 20 ppm group were significantly small with respect to the control group’s (p<0.05). 3. Fracture surfaces were well coincide with the results of acoustic emission behavior. Analyses of fracture surfaces indicated that, consistent with its the highest load, rat femur in 20 ppm fluoride group displays the roughest surface.