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이병근 ( Byong Gun Lee ),이홍수 ( Heung Soo Lee ),주현정 ( Hyun Jeong Ju ),오효원 ( Hyo Won Oh ) 대한예방치과·구강보건학회 2014 大韓口腔保健學會誌 Vol.38 No.2
Objectives: The purpose of this study was to analyze the dental caries pattern in primary dentition of Korean children aged 2-5 years old. Methods: The dental caries pattern in primary dentition was analyzed using data from the Korea National Oral Health Survey, 2006. Subjects for this study were 582 children aged 2-5 years old. Statistical analysis was conducted with frequency analysis, correlation analysis, cluster analysis, and multiple correspondence analysis. Results: The tooth with highest prevalence of caries experience at 5 years old was the tooth 85 and the tooth 75 was followed. When dentition was divided on the basis of quadrants, the correlation of caries occurrence was more related to the relationship between the left and right teeth rather than the upper and lower teeth. In particular, the correlation of left and right caries occurrence was high in the mandible. In order to analyze the dental caries pattern under the age of 5 years, we divided the teeth into four clusters, i.e., deciduous incisors, first deciduous molars, mandibular second deciduous molars, and maxillary second deciduous molars. In children aged 2 and 3 years, severe early childhood caries pattern (ECC pattern) was observed. If it was divided into two clusters at age 4, the pattern was visible in which teeth were divided into anterior and posterior caries. Our multiple correspondence analysis results did not perfectly match those of the cluster analysis, but it was helpful to visually identify the teeth showing a similar caries pattern. Conclusions: Differences in the dental caries pattern in primary dentition was age dependent. Information on caries pattern in primary dentition by each tooth can be useful for study on caries in primary dentition and clinical care.
임차영 ( Cha Young Lim ),이홍수 ( Heung Soo Lee ),이나경 ( Na Gyung Lee ),주현정 ( Hyun Jeong Ju ),이선호 ( Sun Ho Lee ),오효원 ( Hyo Won Oh ) 대한예방치과·구강보건학회 2014 大韓口腔保健學會誌 Vol.38 No.2
Objectives: The purpose of this study was to identify the status of dental care utilization among mothers and children from multicultural families and analyzing the related factors. Methods: The subjects in this study were 131 mothers from multicultural families and 175 mothers from Korean (control) families who were selected by convenience sampling from the city of Nonsan. The dental care utilization among mothers and children from multicultural families and mothers and children from Korean families were compared. A questionnaire survey was conducted using the self-administration method for mothers from Korean families and by a face-to-face interviewing method for mothers from multicultural families. Results: The proportion of subjects who visited the dentist`s office in the past year was not different between the two groups of mothers. However, this proportion was lower in children from multicultural families than those from Korean families. The factors that influenced the visit to dental clinics were age and spouse`s age among multicultural mothers and age, spouse`s age, personal perceptions about oral health, and oral health concerns among Korean mothers. The factors that influenced dental clinic visits were mother`s career, household income, education level of the mother, children`s age, mother`s dental clinic visits, mother`s perception of children`s oral health among multicultural children and father`s age, marriage duration of parents, children`s age, mother`s dental clinical visit, and the mother`s concerns about children`s oral health among Korean children. Conclusions: Multicultural children visit the dental clinic a lot less than Korean children. Social economic factors such as household income, education level affect the use of dental clinic services by multicultural families.
한국산 곤충병원성 선충에 대한 알팔파바구미의 감수성 실내 검정
김형환,한건영,박정찬,추호렬,조성래,이홍수,이동운,박정규,Kim, Hyeong-Hwan,Han, Gun-Yeong,Park, Chung-Chan,Choo, Ho-Yul,Cho, Sung-Rae,Lee, Heung-Soo,Lee, Dong-Woon,Park, Chung-Gyoo 한국응용곤충학회 2007 한국응용곤충학회지 Vol.46 No.1
한국산 곤충병원성 선충 S. carpocapsae GSN1 계통(ScG), S. glaseri Dongrae 계통(SgD), Heterorhabditis bacteriophora Hamyang 계통(HbH) 및 Heterorhabditis spp. Cyeongsan 계통(HeG)에 대한 알팔파바구미의 감수성을 실내 페트리디쉬 검정하였다. 알팔파바구미의 유충 치사율은 선충 종과 처리농도에 따라 유의적인 차이가 있었다. 알팔파바구니의 유충 한 마리당 각 선충 계통의 감염충(3령충)을 20마리 이상 접종했을 때 3일 후 77.5(HbH)-100(SgD)의 높은 치사율을 나타내었다. 선충의 침입수는 선충 종과 처리농도에 따라 차이가 있었으나, 증식수는 유의적 인 차이가 없었다. 침 입수에서는 SgD를 알팔파바구미 유충 한 마리당 80마리로 접종했을 때 30.2마리로 가장 많았다. 그리고 증식수는 HeG를 알팔파바구미 유충 한 마리당 80마리로 접종했을 때 2,671.5로 가장 많았다. 한국산 곤충병원성 선충 4 계통은 알팔파바구미의 성충에는 전혀 기생하지 않았으나 노숙 유충에 대해서는 매우 감수성이었다. Laboratory tests were conducted to determine the susceptibility of the alfalfa weevil, Hypera postica to Korean entomopathogenic nematodes, Steinernema carpocapsae GSN1 strain (ScG), S. glaseri Dongrae strain (SgD), Heterorhabditis bacteriophora Hamyang strain (HbH), and Heterorhabditis sp. Gyeongsan strain (HeG) at the petri dish assay. The larval mortality of H. postica was significantly different depending on nematode species and treatment concentration. SgD and HeG strain were more effective against H. postica larva than ScG and HbH strain. When SgD and HeG strain were treated with the rate of >20 infective juveniles (ijs) per alfalfa weevil larva, mortality was ca. 77.5-100% at the late instars of H. postica in 3 days. The number of established nematode was significantly different depending on nematode species, whereas number of progeny was not significantly different. The mean number of established us of SgD strain in a host was the highest at 80 ijs by 30.2. The highest progeny number of HeG strain was 2,671.5 with 80 ijs. All nematode strains were not parasitic entirely to H. postica adults. These results show that alfalfa weevil late larva is highly susceptible to Korean entomopathogenic nematodes in the laboratory.