• 대한소아치과학회지
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• 제43권2호
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• pp.151-157
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• 2016

본 연구는 3-6세 어린이의 비만과 치아우식 사이의 관련성을 알아보고자 하였다. 익산시 소재의 어린이집과 유치원 아동 769명을 대상으로 우식경험유치지수(dft index)를 조사하고, 신장과 체중을 측정하여 체질량지수(body mass index)를 계산하였다. 표준성장도표의 체질량지수 백분위수를 이용하여 저체중, 정상, 비만위험, 비만의 4개 군으로 분류하였고, 저체중인 15명을 제외한 754명을 대상으로 분석하였다. 평균 dft index는 3.39였고, 남녀간의 유의한 차이는 없었다. 연령에 따라 dft index는 증가하였으며, 4세에서 5세에서 증가폭이 가장 컸다. 비만위험군과 비만군은 정상군보다 더 많은 우식경험률을 보였다. 그러나 3세 집단을 제외한 모든 연령군에서 정상, 비만위험, 비만 집단간의 통계적으로 유의한 차이를 보이지 않았다. 결론적으로 비만과 유치열의 우식경험에는 유의한 관련성이 없음을 알 수 있었다.

• 한국치위생학회지
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• 제13권3호
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• pp.501-507
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• 2013

Objectives : The purpose of this study was to evaluate the effect of the family dentist system on oral health status of children and adolescents of Community Children's Centers in Busan, Korea. Methods : The subjects of this study were 81 children and adolescents, 6 to 14 years old, using Community Children's Centers. The oral health survey was conducted on the subjects from the starting stage of family dentist program in 2009 to the evaluation stage in 2010. Dental health status was examined by a trained dentist according to the guideline proposed by the World Health Organization. In addition, the information on the oral health knowledge, belief, and process of dental care were obtained using questionnaires. Data were analyzed using the paired samples t-test. Results : Percentages of subjects with fissure sealants on permanent teeth and filling rate among DMF teeth of 2010 year were higher than those of 2009 year (P<0.05). However, the rate of decayed teeth among DMF teeth of 2010 year was lower than those of 2009 year (p=0.049). Conclusions : These findings showed that the family dentist system brought a positive effect on caries prevention and proper dental care of children and adolescents of the Community Children's Centers.

• 해양환경안전학회지
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• 제10권2호
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• pp.7-15
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• 2004

선원들의 구강건강 유지 및 중진을 위해 구강건강실태를 조사 분석하기 위하여 한국해양수산연수원에서 안전교육을 이수하고 있는 선원들을 대상으로 한 조사에서 다음과 같은 결과를 얻었다. 1일 잇솔질 횟수는 2회가 $51.0\%$로 가장 많았고, 잇솔 방향은 섞어서가 $39.0\%$로 가장 많았으며, 스켈링은 $64.2\%$가 경험이 있었고 1일 간식 횟수는 2-3회가 $62.6\%$로 가장 많았다. 구강건강 인식은 '건강하다' $25.9\%$, '약하다' $38.8\%$로 응답하였고, 영구치의 충치경험은 $78.1\%$였으며, 현재 구강불편중상은 '이가 시리다' 가 $25.6\%$로 가장 높았다. 연령별 구강불편중상은 40대 미만은 충치, 40대이상은 이가 시리다의 응답이 높았고 간식횟수가 많을수록 구강 질환이 많곤 충치 경험도 높게 나타났다. 이상의 조사 결과에서 선원들의 구강보건을 적절히 관리하려면 우선적으로 장애요인인 시간적, 경제적 제약의 해결이 우선되어야 하겠으며 선원들의 구강보건 교육을 기획 할 때는 실천성이 높은 교육계획이 되도록 노력해야 할 것이다.

• 보건교육건강증진학회지
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• 제20권2호
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• pp.95-112
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• 2003

Objectives： Oral health care program for the elementary school children (ESOHCP) should be met the first priority because dental caries are highly sensitive and prevalent among them. This study was performed to enhance the efficiency of ESOHCP, and their oral health promotion. Methods： The Subjects were 346 students (3rd grade 163, 6th grade 185) of one elementary school in Busan. Dental IQ and actual oral health status； the decayed, mixing and filling teeth were checked through questionnaire and oral health examination from April to June 2002. Dental IQ was presented out of one hundred, and data analysis was done using SAS (ver 8.1) program. Results： The students' cognitive level about the causative and preventive factor of dental caries was relatively high. However, the practical aspects of preventive behavior - tooth brushing； three times per day (20％), three minutes per time (22％), oral health examination； one time per three months (10％) left much to be desired. And, only 27％ of the subjects had experienced in school oral health education. The mean level of dental IQ was 79 out of 100, and 51 ％ and 42％ of them had the decayed and teeth with filling, respectively, with the rate of DMFT 82％, DT 43％, FT 57％. The level of dental IQ was higher in case of having his (her) own tooth brush (p＝0.072), standard tooth brushing (p<0.001) three times per day, post meal, three minutes per time, present experience of oral health examination (p<0.001) and dental clinic visit (p<0.001). The grade of caries was more serious in case of 6th grade (p＝0.059), an absence of his (her) own tooth brush (p＝ 0.090), present experience of oral health examination (p＝0.021), and an absence of regular dental clinic visit (p＝0.003). The frequency of oral health examination (γ＝ 0.620), tooth brushing； times per day (γ＝0.445), post meal (γ＝0.355), expending times per brushing (γ＝0.352), right cognition to the treatment of caries (γ＝0.401), positive attitude to dental treatment (γ＝0.387), the frequency of dental clinic visit for the past one year (γ＝0.152) showed significant correlation with dental IQ. In the multivariate analysis, dental IQ was influenced by the frequency of oral health examination, right cognition to the cause of caries, times of teeth brushing per day, right cognition to the treatment of caries, etc., with adjusted R2＝0.857. Conclusion： Though the students' cognitive level about the causative and preventive factor of dental caries was high, the practical aspects of preventive behavior left much to be desired. Ant the current ESOHCP considered to be still inefficient. However, frequent dental visits had apparent correlation with hish level of dental IQ. The specialized and practical program should be needed for the efficient ESOHCP. Harmonized effort from educational, health and dental society is essential.

• Journal of Korean Academy of Oral Health
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• 제41권4호
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• pp.267-273
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• 2017

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 ${\geq}18years$ 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.

• Journal of Oral Medicine and Pain
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• 제20권2호
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• pp.429-447
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• 1995

This study was designed to determine the most effective concentration of fluoride and levels of laser irradiation for the remineralization of decayed teeth. After irradiation with a pulsed Nd:YAG laser and the topical application of fluoride, phosphate and fluoride concentration in enamel were measured. And then the changes on surface enamel using an scanning electron microscope were observed. Samples by extraction healthy, permanent, mandibular bovine teeth with no caries were obtained. Among them 371 healthy samples were selected and artificial carious lesions were made. 20 samples were assigned to each experimental group. After irradiation with a pulsed Nd:YAG laser with total energy densities of 10J/$\textrm{cm}^2$, 20J/$\textrm{cm}^2$ for each group. On the teeth, 2% NaF, 1.9% NH4F, 1.6% TiF4 Elmex gel(amine fluoride) and 1.23% APF gel were applied. After pH circulatory procedures, concentrations of fluoride with and Ionalyzer (Orion Research, Model 901, USA) and phosphates with an Uv/V is spectrophotometer (Uvikon 860, Kontrom Co, Switzerland) were measured. By etching the teeth in layers and measuring fluoride concentrations, a profile of fluoride penetration according to depth could be developed. And also the changes on the surface of the enamel using an electron scanning microscope were observed. The comparative analysis yielded the following results : 1. Phosphate concentration was low in all groups compared with the control group except for teeth treated Elmex gel, irradiated with 10J/$\textrm{cm}^2$ and 30J/$\textrm{cm}^2$ energy densities. Teeth treated with APF gel and 30J/$\textrm{cm}^2$ irradiation gad the lowest phosphate concentration. 2. Among all groups, fluoride concentrations in tooth enamel were highest in APF gel and NaF groups irradiated at 30J/$\textrm{cm}^2$. The APF gel group had the highest fluoride concentrations across all energy densities. 3. In the APF gel group, and the NaF group, the greater the energy density of the laser, the higher the fluoride concentrations in the enamel. 4. In all groups, the concentration of fluoride in the enamel by depth tended to decrease with depth. 5. Under the scanning electron microscope, under the condition of irradiation with 20J/$\textrm{cm}^2$, enamel crack was detected for the first time. In the NH4F group, spherical deposits were found on the surface of the enamel, and in the TiF4 group the surface of enamel was covered with an irregular, thin membranous mass in places. In the APF gel and NaF groups irradiated with 10J/$\textrm{cm}^2$, spherical and irregular particles covered the teeth. When these groups were irradiated at 20J/cm2, they were covered with amorphous crystals. These results suggest that one could obtain more effective anticariogenic effects without damage to teeth when less than 20J/$\textrm{cm}^2$ energy densities and APF gel are used.

• 한국치위생학회지
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• 제15권4호
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• pp.593-602
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• 2015

Objectives: The purpose of the study is to investigate the relations between oral health status and subjective oral health recognition in Korean adolescents. Methods: The survey data were extracted from the 2012 Korea National Oral Health Survey from June to November, 2012. The survey consisted of oral checkup data and the oral health interviewing data of 9,981 adolescents(5,335 male, 4,646 female) by proportional distribution. The questionnaire included general objective oral health status and subjective oral health recognition. The subjective oral health recognition consisted of general characteristics of the subjects, oral health status, oral health behavior, and subjective oral health recognition. Results: According to multiple regression analysis for the relations between general characteristics and subjective oral health recognition, subjective health recognition, the influencing factors were gender, age, the number of tooth brushing per day, intake of snacks and carbonated drinks, regular oral examination, decayed teeth (DT), missing teeth (MT,) and DMFT. Conclusions: The routine oral checkup is the most important method to improve the oral health management in the adolescents. The continuing oral health improvement project must be implemented based on the law and will keep the adolescents in good oral health status.

• 센서학회지
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• 제21권3호
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• pp.217-222
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• 2012

Optical coherence tomography(OCT) is a noninvasive optical imaging tool for biomedical applications. OCT can provide depth resolved two/three dimensional morphological images on biological samples. In this paper, we integrated an OCT system that was composed of an SLED(Superluminescent Light Emitting Diode, ${\lambda}_0$=1305 nm bandwith= 141 nm), a reference arm adopting a rapid scanning optical delay line(RSOD) to get high speed imaging, and a sample arm that used a micro electro mechanical systems(MEMS) scanning mirror. The sample arm contained a compact probe for imaging dental structures. The performance of the system was evaluated by imaging in-vivo human teeth with dental calculus, and the results indicated distinct appearance of dental calculus from enamel, gum or decayed teeth. The developed probe and system could successfully confirm the presence of dental calculus with a very high spatial resolution($6{\mu}m$).

• Bulletin of the Korean Chemical Society
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• 제30권4호
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• pp.887-890
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• 2009

Hydroxyapatite (HAp)-based materials have attracted considerable attention on account of their excellent stability and recrystallization. Nanoscale HAp powders with a mean particle size of 200 nm were used to regenerate the enamel layers of damaged teeth. An artificially scratched tooth was immersed in a nanoscale HAp powder suspension in d.i. water (HAp of 70 wt%) at 37 ${^{\circ}C}$ for a period of 1~3 months. SEM and AFM showed that the scratched surface was ultimately inlaid with HAp after three months and the roughness increased from 2.80 to 5.51. Moreover, the hardness of the neo-generated HAp layer on the crown was similar to that of the innate layer. $Ca^{2+}$ and ${PO_4}^{3-}$ ions from the HAp powders dissolved in d.i. water were precipitated on the tooth to produce cemented pasteson the enamel surface due to its high recrystallizing characteristics, resulting in a hard neo-regenerated HAp layer on the enamel layer. This nanoscale HAp powder solution might be used to heal decayed teeth as well as to develop tooth whitening appliances.

• 치위생과학회지
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• 제15권1호
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• pp.1-11
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• 2015

본 연구는 다양한 나라에서 우리나라에 이주해 온 외국인 노동자 426명을 대상으로 일반적인 특성에 따른 칫솔질 행태와 구강건강상태, 칫솔질과 구강건강상태와의 관계를 분석한 결과 다음과 같은 결과를 얻었으며 통계적으로 유의한 결과이다. 일반적인 특성에 따른 하루 3회 이상 칫솔질 빈도는 여성이 63.0%로 남성보다 높았으며, 교육수준은 학력 수준이 높을수록 칫솔질 빈도가 높았다. 체류기간은 국내에 체류기간이 어느 정도 지난 경우 높게 나타났다. 건강보험은 전반적으로 건강보험이 가입된 경우 빈도가 높았다. 의료비 부담은 무료인 경우 50.0%로 가장 높았고, 친구 또는 정기적인 모임이 있는 경우 칫솔질 빈도가 높게 측정되었다. 칫솔질 부위 중 치아, 잇몸, 혀를 전체적으로 잘 닦는 경우는 연령이 적을수록, 미혼인 경우가 전체적으로 잘 닦고 있었으며 수입은 보통인 경우가 잘 닦고 있었고, 건강보험에 가입한 경우가 잘 닦고 있었다(p<0.05). 일반적인 특성에 따른 칫솔질 소요시간 3분 이상인 집단은 미혼인 경우와 건강보험에 가입된 경우가 칫솔질 소요시간이 길었으며, 칫솔질 교육유무에서는 국내 체류기간이 5년 초과인 경우와 정기적인 모임이 있는 경우가 칫솔질 교육을 많이 받았다. 구강위생용품은 성별은 여성, 학력은 학력수준이 높을수록, 체류기간은 3~5년 사이가 많이 사용하고 있었으며 의료비 부담은 무료인 경우와 정기적인 모임이 있는 경우 구강위생용품을 많이 사용한다고 나타났다(p<0.05). 일반적인 특성에 따른 DMFT index의 평균은 6.98, CPITN의 평균은 3.03으로 우리나라 2010년 국민구강건강 실태조사에서 성인 18세에서 44세의 DMFT index 5.9, CPITN은 1.6에 비하여 높은 것으로 나타났다. 성별에서는 DMFT index가 여성이 높았고, CPITN은 남성이 높았다. 연령, 결혼여부, 학력의 CPITN은 연령이 높을수록 높았으며 결혼여부는 기혼이 낮았다. 학력은 고졸 이하가 낮았다. 동거인이 없는 경우는 DMFT index가 높았고, CPITN은 동거인이 있는 경우가 2.97로 낮았다. 수입은 100만원 미만이 8.17로 DMFT index가 가장 높았고, CPITN은 100만원 미만이 2.75로 가장 낮았다. 건강보험이 있는 경우 DMFT index는 높았고, CPITN은 낮았다(p<0.05). 칫솔질 행태에 따른 DMFT index와 CPITN의 결과는 칫솔질 빈도 3회 이상에서 DMFT index가 8.34로 가장 높았으며, CPITN은 2.96으로 가장 낮았다. DMFT index는 칫솔질 행태가 좋을수록 높았으며 CPITN은 칫솔질 행태가 좋지 않을수록 낮게 나타났다. 상관분석 결과는 DMFT index에서 칫솔질 빈도와 칫솔질 부위, CPITN에서는 칫솔질 부위와 칫솔질 소요시간이 유의성을 나타냈다(p<0.05). 이상과 같은 결과를 바탕으로 외국인 이주 노동자들의 구강건강증진을 위한 질 높은 의료서비스를 제공하기 위해서는 치아우식증과 치주질환의 예방법으로 가장 기본인 칫솔질의 중요성을 인식시키고 올바른 칫솔질 관리를 위한 지속적인 교육이 이루어져야 할 것이다.