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Hwa-Sook Kim,Soo Keun Song,유소영,Dong Chun Jin,Hwan Seon Shin,Chae Kwang Lim,김명수,김진수,Son-Jin Choe,국중기 한국미생물학회 2005 The journal of microbiology Vol.43 No.4
The objective of this study was to assess the strain-specificity of a DNA probe, Fu12, for Fusobacterium nucleatum subsp. nucleatum ATCC 25586T (F. nucleatum ATCC 25586T), and to develop sets of strainspecific polymerase chain reaction (PCR) primers. Strain-specificity was tested against 16 strains of F. nucleatum and 3 strains of distinct Fusobacterium species. Southern blot hybridization revealed that the Fu12 reacted exclusively with the HindIII-digested genomic DNA of F. nucleatum ATCC 25586T. The results of PCR revealed that three pairs of PCR primers, based on the nucleotide sequence of Fu12, generated the strain-specific amplicons from F. nucleatum ATCC 25586T. These results suggest that the DNA probe Fu12 and the three pairs of PCR primers could be useful in the identification of F. nucleatum ATCC 25586T, especially with regard to the determination of the authenticity of the strain.
Accuracy of three-dimensional printing for manufacturing replica teeth
Keun-Young Lee,Jin-Woo Cho,Na-Young Chang,Jong-Moon Chae,Kyung-Hwa Kang,Sang-Cheol Kim,Jin-Hyoung Cho 대한치과교정학회 2015 대한치과교정학회지 Vol.45 No.5
Objective: Three-dimensional (3D) printing is a recent technological development that may play a significant role in orthodontic diagnosis and treatment. It can be used to fabricate skull models or study models, as well as to make replica teeth in autotransplantation or tooth impaction cases. The aim of this study was to evaluate the accuracy of fabrication of replica teeth made by two types of 3D printing technologies. Methods: Fifty extracted molar teeth were selected as samples. They were scanned to generate high-resolution 3D surface model stereolithography files. These files were converted into physical models using two types of 3D printing technologies: Fused deposition modeling (FDM) and PolyJet technology. All replica teeth were scanned and 3D images generated. Computer software compared the replica teeth to the original teeth with linear measurements, volumetric measurements, and mean deviation measurements with best-fit alignment. Paired t-tests were used to statistically analyze the measurements. Results: Most measurements of teeth formed using FDM tended to be slightly smaller, while those of the PolyJet replicas tended to be slightly larger, than those of the extracted teeth. Mean deviation measurements with best-fit alignment of FDM and PolyJet group were 0.047 mm and 0.038 mm, respectively. Although there were statistically significant differences, they were regarded as clinically insignificant. Conclusions: This study confirms that FDM and PolyJet technologies are accurate enough to be usable in orthodontic diagnosis and treatment.
치주수술 전후 구강보건행태 및 치주질환 인지도의 변화와 치주조직 임상지수와의 관계
송근배,나채환,김정숙,정성화 대한구강보건학회 2002 大韓口腔保健學會誌 Vol.26 No.1
The aims of this study were to compare results of peridontal surgical treatment via oral health education and behaviour changes during treatment procedure. Information was obtained with consent from convenient sampling of 54 patients diagnosed as having adult periodontitis using self developed questionnaire. The survey was completed twice by each patient, one before treatment and once after 3 month of final Widman flap operation. The analysis of collected data was made on the basis of SAS 8.01. The obtained results were as follows: 1. When comparison of tooth brushing frequency, method and knowledge about periodontal disease before periodontal surgical treatment, three times and more brushing, using Bass technique, high knowledge and using auxiliary measures of tooth brushing group had significantly low depth of periodontal pocket. Degrees of bleeding index were also low in these groups but had no statistical significance. 2. Periodontal pocket depth had more decreased in group that had correct oral hygiene behaviours of brushing frequency, method, using auxiliary measures both before and after periodontal surgical treatment than group that had improved oral hygiene bebaviours or that had not changed bad oral hygiene after periodontal surgical treatment, but had no significant difference. Bleeding index was decreased significantly when oral hygiene behaviours had changes correctly except change of using auxiliary oral hygiene measures. 3. Both the more improved group in the knowledge about periodontal disease after periodontal surgical treatment and oral health education had significant lower periodontal pocket and bleeding index. In sum, high knowledge about periodontal disease and correct oral hygiene behaviour can effect prevention and recurrence of periodontal disease. Through these process, we can get a good result of periodontal surgical treatment. Dentists, especially periodontologists and dental personnel should take all possible steps to educate patients by improving and sustain patients' oral hygiene still after periodontal surgical treatment.
Kim Hwa-Sook,Song Soo Keun,Yoo So Young,Jin Dong Chun,Shin Hwan Seon,Lim Chae Kwang,Kim Myong Soo,Kim Jin-Soo,Choe Son-Jin,Kook Joong-Ki The Microbiological Society of Korea 2005 The journal of microbiology Vol.43 No.4
The objective of this study was to assess the strain-specificity of a DNA probe, Fu12, for Fusobacterium nucleatum subsp. nucleatum ATCC $25586^T$ (F. nucleatum ATCC $25586^T$), and to develop sets of strain-specific polymerase chain reaction (PCR) primers. Strain-specificity was tested against 16 strains of F. nucleatum and 3 strains of distinct Fusobacterium species. Southern blot hybridization revealed that the Fu12 reacted exclusively with the HindIII-digested genomic DNA of F. nucleatum ATCC $25586^T$. The results of PCR revealed that three pairs of PCR primers, based on the nucleotide sequence of Fu12, generated the strain-specific amplicons from F. nucleatum ATCC $25586^T$. These results suggest that the DNA probe Fu12 and the three pairs of PCR primers could be useful in the identification of F. nucleatum ATCC $25586^T$, especially with regard to the determination of the authenticity of the strain.
Combined Cis-platinum and Alpha Interferon Therapy of Advanced Hepatocellular Carcinoma
( Sang Keun Ji ),( Neung Hwa Park ),( Hyun Mook Choi ),( Young Woo Kim ),( Sin Hwa Lee ),( Keum Hee Lee ),( Su Yul Ahn ),( Sang Uk Lee ),( Byung Hoon Han ),( Byung Chae Park ) 대한내과학회 1996 The Korean Journal of Internal Medicine Vol.11 No.1