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악안면 기형의 상하악골 전후방적 위치관계에 대한 McNamara Analysis와 Delaire Analysis의 기준선 비교연구
정승원,김소미,변성수,박형식,정영수,Chung, Seung-Won,Kim, So-Mi,Byun, Sung-Soo,Park, Hyung-Sik,Jung, Young-Soo 대한악안면성형재건외과학회 2011 Maxillofacial Plastic Reconstructive Surgery Vol.33 No.4
Purpose: McNamara and Delaire analyses are two commonly used analytic methods, yet, they differ in their theoretic concepts and different reference lines are used for ideal surgical prediction. Therefore, the use of different analytic methods may result in different surgical plans. The purpose of this study was to compare the anterior and posterior relationship of the maxilla and mandible by using McNamara and Delaire analysis. Methods: 30 Korean patients (15 male and 15 female) who had visited the Department of Oral and Maxillofacial Surgery, College of Dentistry, Yonsei University, for dentofacial evaluation were studied by using McNamara's and Delaire's analyses. Results: On the maxillary analysis, 26 out of 30 patients (86.7%) were in accordance. On the mandibular analysis, 20 out of 30 patients (66.7%) were in accordance. On the maxillary analysis, McNamara's analysis showed an average of 0.36 mm greater amount of prognathism compared to Delaire's analysis, and this was not statistically significant. On the mandibular analysis, McNamara's analysis showed an average of 6.03 mm greater amount of prognathism compared to Delaire's analysis, and this was statistically significant. On the mandibular analysis, 26 out of 30 patients (86.7%) showed a greater amount of prognathism on McNamara's analysis compared to that of Delaire's analysis. The remaining 4 patients (13.3%) showed the same amount of prognathism on both analyses. Conclusion: These results may serve as a reference for surgeons when determining which analytic method is to be used for optimal surgical results.
정승원(Seung Won Chung),도현심(Hyun Sim Doh) 한국아동학회 1997 아동학회지 Vol.18 No.2
The relation of parental sociability and parenting behaviors (such as warmth and control) to shyness in children was examined. The subjects were 280 fifth-and sixth-grade children (139 boys and 141 girls). The data were analyzed by multiple regressions. Results showed that (1) maternal sociability was related to shyness in children: the more sociable the mothers, the less shy their children, and (2) paternal and maternal warmth were related to shyness in children: the warmer the fathers and mothers, the less shy their children.
정승원(Jeong Seung Won),정원지(Chung Won Jee),김명식(Kim Myung Sik),전주열(Jeon Ju Yeal) 한국생산제조학회 2014 한국생산제조학회지 Vol.23 No.1
This paper provides a methodology for extracting design data from the three-dimensional design software SolidWorks<SUP></SUP>®<SUP></SUP>, which isbased on the existing trochoid pump design equations thatare used by hydraulic field engineers. The data extracted from the SolidWorks<SUP></SUP>®<SUP></SUP> model are input to a hydraulic analysis software AMESim<SUP></SUP>®<SUP></SUP> model todetermine the design factors that can influence the properties of a trochoid pump. On the basis of the simulation results, this paper proposesa methodto reduce the flow loss by adjusting the outlet angle of the trochoid pump. This proposal was verified by using actual experimental results, which confirmed that adjusting the outlet angle can increase the flow rate. Hence,the results presented in this paper can contribute to the prototyping of a trochoid pump by reducing the cost associated with a trial-and-error design.
정승원(Seung-Won Chung),최세경(Se-Kyung Choi),남웅(Woong Nam),차인호(In-Ho Cha),김형(Hyung Jun Kim) 대한구강악안면외과학회 2009 대한구강악안면외과학회지 Vol.35 No.5
Tumors of the deep lobe of parotid gland are rare. These benign tumors have usually been treated by total parotidectomy, which has functional and esthetic side effects. Recently, there has been a trend for operations of parotid gland benign tumors to be less radical and selective deep lobe parotidectomy has been introduced. This technique preserves the superficial lobe and facial nerve when tumor is located in the deep lobe. Selective deep lobe parotidectomy preserves parotid salivary function, minimizes the incidence of facial nerve damage and gustatory sweating (Frey’s syndrome) and improves cosmetic outcome. We report a case of pleomorphic adenoma of the deep lobe that was successfully treated by selective deep lobe parotidectomy with satisfactory result.
정승원(Seung Won Chung),전현수(Hyun Su Jun),백승국(Seung Kuk Baek),정광윤(Kwang Yoon Jung) 대한두경부종양학회 2004 대한두경부 종양학회지 Vol.20 No.1
Mucinous adenocarcinoma is rarely reported in head and neck region. In other organ, it usually occur in breast, gastrointenstinal tract and so on. The specific histologic findings of mucinous adenocarcinoma are the large amount of extracellular mucin and tumor cell nests such as floating in mucin pool. It may develop rarely in major or minor salivary gland, but only one case of mucinous adenocarcinoma originating from parotid gland was presented in south korea. We report a case of mucinous adenocarcinoma in the tongue base considered to develop from minor salivary gland with a review of literatures.
정승규 ( Seung Kyu Chung ),장재영 ( Jae Young Jang ),정승원 ( Soung Won Jeong ),심찬섭 ( Chan Sup Shim ),김부성 ( Boo Sung Kim ),진윤미 ( Yoon Mi Jeen ),진소영 ( So Young Jin ) 대한내과학회 2009 대한내과학회지 Vol.77 No.6
Autoimmune cholangitis is a disease with clinicopathologic features of primary biliary cirrhosis without antimitochondrial antibodies and, frequently, with high antinuclear antibody titers. Alternative terms have been suggested, including antimitochondrial antibody-negative primary biliary cirrhosis, immunocholangitis, autoimmune cholangiopathy, and autoimmune hepatobiliary overlap syndrome type 1. The question of whether autoimmune cholangitis is distinct from primary biliary cirrhosis and autoimmune hepatitis or is an antimitochondrial antibody-negative variant of primary biliary cirrhosis and autoimmune hepatitis is controversial. This case report describes the clinical, immunohistochemical, and pathological findings in four patients with autoimmune cholangitis and reviews the literature. (Korean J Med 77:750-754, 2009)