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표면 마무리와 복합레진 수복물의 변연누출에 미치는 영향에 관한 연구
노용관,김미경,백병주 全北大學校 齒醫學硏究所 1992 전북치대논문집 Vol.10 No.1
The purpose of this study was to evaluate the marginal leakage of esthetic restorative materials according to the finishing and polishing technique in primary molar. 50 cavities were prepared on occlusal surface for dye penetration test and divided into 5 experimental groups according to the finishing and polishing technique : Group Ⅰ was not treatment and Group Ⅱ, Ⅲ, Ⅳ, Ⅴ were respectively finished and polished with carbide bur, sof-lex, super snap, diamond bur. All the specimens were then thermocycled in a range of 4℃∼54℃ and immersed in 2% methylen blue dye solution for 24 hours and sectioned with low speed diamond cutter into two parts under water condition. All the specimens were observed at enamel―resin interface with light microscope and statistical analysis was peformed. The obtained results were as follows : 1. The mean value of the dye penetration length was similar in each group and was not significant, statistically(P>0.05). 2. The mean value of the dye penetration score was slightly lower in group Ⅲ, but the difference was not significant statistically(P>0.05). 3. Group Ⅰ, not treated with finishing and polishing, shows slightly higher value in both dye penetration length and score of the other groups(4 groups) treated with finishing and polishing. But statistically, there was no significant difference(P>0.05).
스테로이드 단기투여로 신속히 호전된 대상포진 환자의 안구 외전 마비
노용관 ( Yong Kwan Rho ),이진웅 ( Jin Woong Lee ),김지영 ( Ji Young Kim ),이갑석 ( Kap Sok Li ),서성준 ( Seong Joon Seo ),홍창권 ( Chang Kwun Hong ) 대한피부과학회 2008 대한피부과학회지 Vol.46 No.10
Herpes zoster ophthalmicus involving the first division of the fifth cranial nerve produces various clinical manifestations. Among them, external ocular motor palsy is a rare and uncomfortable complication, but it is generally transient and self-limited. This palsy can have a neural, vascular ormuscle origin. We report here on a case of ocular abduction palsy in a patient with herpes zoster ophthalmicus, and this palsy cleared up after treatment with systemic steroid for two weeks. (Korean J Dermatol 2008;46(10):1395∼1397)
노용관 ( Yong Kwan Rho ),유광호 ( Kwang Ho Yoo ),김지영 ( Ji Young Kim ),이갑석 ( Kap Sok Li ),서성준 ( Seong Joon Seo ),홍창권 ( Chang Kwun Hong ),송계용 ( Kye Yong Song ) 대한피부과학회 2009 대한피부과학회지 Vol.47 No.1
Epidermal nevi are harmatormas that are the result of developmental malformations of the epidermis, and these lesions present with a variety of clinical and histological characteristics. Some tumors can arise in epidermal nevi because epidermal nevi develop from multipotent germinative cells. We report here on a 57-year-old woman who had epidermal nevi arranged in a linear pattern since childhood. Her epidermal nevi were located in her left chest, arm and shoulder, upon which multiple trichillemal cysts seemed to develop after several years. We think that this patient with linear epidermal nevi associated with multiple trichilemmal cysts is a rare and distinctive case. (Korean J Dermatol 2009;47(1):55~58)
노용관 ( Yong Kwan Rho ),유광호 ( Kwang Ho Yoo ),김지영 ( Ji Young Kim ),이갑석 ( Kap Sok Li ),서성준 ( Seong Joon Seo ),홍창권 ( Chang Kwun Hong ),송계용 ( Kye Yong Song ) 대한피부과학회 2008 대한피부과학회지 Vol.46 No.12
Spindle cell lipoma is a benign, subcutaneous neoplasm typically located on the neck, back and shoulder of men. Pseudoangiomatous spindle cell lipoma is a rare variant of spindle cell lipoma that is characterized by non-vascular branching spaces. A 64-year old man presented with 2 masses on the abdomen. Although 1 tumor had a very low fat component, it could be histologically diagnosed as pseudoangiomatous spindle cell lipoma due to CD 34 positive spindle cells, ropey collagen and blood vessels. We report a case of pseudoangiomatous spindle cell lipoma on the abdomen, which was diagnostically difficult due to a scanty fat component. (Korean J Dermatol 2008;46(12):1644∼1647)
노용관 ( Yong Kwan Rho ),김연진 ( Yeon Jin Kim ),안지영 ( Ji Young Ahn ),서성준 ( Seong Jun Seo ),홍창권 ( Chang Kwun Hong ),송계용 ( Kye Yong Song ) 대한피부과학회 2007 대한피부과학회지 Vol.45 No.11
Adult xanthogranuloma is nearly indistinguishable from juvenile xanthogranuloma characterized by yellow-red nodules on the skin, normal lipid findings and the proliferation of xanthomatizied histiocytes with foamy Touton cells, histologically. But unlike juvenile xanthogranuloma, there is no visceral involvement, spontaneous regression and more solitary lesions. Multiple adult xanthogranulomas are rare entities that present more spontaneous involution. Here we report a case of a 39-year-old patient with multiple xanthogranulomas which developed on the face, trunk and extremities. Diagnostic workup revealed normal lipid profile and no extracutaneous manifestations. (Korean J Dermatol 2007;45(11):1176∼117)
노용관 ( Yong Kwan Rho ),김범준 ( Beom Joon Kim ),김명남 ( Myeung Nam Kim ),노병인 ( Byung In Ro ) 대한피부과학회 2008 대한피부과학회지 Vol.46 No.6
Background: Androgenetic alopecia is the most common form of hair loss in people with a genetic predisposition. It is characterized by the miniaturization of terminal hair follicles and the formation of vellus-like follicles. Objective: The aim of this study was to evaluate the prevalence, clinical manifestation, genetic and endocrine factor, and associated diseases of Korean patients with androgenetic alopecia. Methods: We studied 789 Korean men and women with androgenetic alopecia. A detailed history was taken and their hormonal values were measured. A pelvic ultrasound scan was performed to check for abnormalities the ovaries and uterus of 56 women with androgenetic alopecia. Results: The number of men was 1.9 times more (520) than that of women (269). Most of them were in their twenties (male 223; 42.8%, female 85; 31.5%). In the 520 male patients, Norwood class IIIv was dominant (161 patients; 30.9%). In the 269 female patients, Ludwig class I was superior (218 patients; 81%). 395 (75.9%) of male patients and 198 (73.6%) of female patients had a family history of androgenetic alopecia. The most common associated disorder was seborrheic dermatitis (male 407; 78.2%, female 155; 57.6%). And others included atopic dermatitis, hypertension, thyroid disease, etc. Serum testosterone levels were increased in 92 (17.6%) of the male patients and in 36 (13.3%) of the female patients. Abnormal pelvic ultrasound findings were observed in 10 (18%) of 56 female patients, and the conditions were ovarian cysts (8.9%), Uterine myoma (5.4%), uterine mass (2%), endometrial mass (2%). Conclusion: Androgenetic alopecia is a disease that has genetic and familial tendency and is associated with the androgen level. The number of androgenetic alopecia patients was increasing and type IIIv was most common in the male patients. The pelvic ultrasound showed an increased rate of abnormal findings in the female patients with androgenetic alopecia, but ultrasound is not an appropriate routine test to evaluate. (Korean J Dermatol 2008;46(6):729∼735)