색소성 광선각화증에서 발생한 색소성 편평세포담종 - 1예 보고-

최현주,박경신,강석진,최영진,김병기,김선무,심상인 대한병리학회 1998 Journal of Pathology and Translational Medicine Vol.32 No.1

고어텍스를 이용한 비성형 5례

진홍률,양상권,최영석 충북대학교 의과대학 충북대학교 의학연구소 1999 忠北醫大學術誌 Vol.9 No.2

비성형수술에 삽입하는 사용물로는 자가연골이 가장 이상적이지만 필요한 만큼의 충분한 양을 얻기가 힘들고, 수술시간이 길어지며, 흡수가 일어날 수 있다는 단점이 있다. 이러한 단점을 극복할 수 있는 이종이식물 중에서 고어텍스는 최근에 개발되어 사용이 점차 증가하고 있는 추세이지만 아직까지 고어텍스의 임상적 효용성에 대한 보고는 드물다. 저자들은 고어텍스를 5명의 융비술 환자에서 사용하였는데 3명은 연골과 같이, 2명은 고어텍스 단독으로 사용하였다. 이 중 1명에서 감염이 발생하여 고어텍스를 제거하고 늑연골을 이용하여 융비술을 다시 시행하였고 나머지 4명은 모두 만족스러운 결과를 얻었다. 평균 20개월의 추적관찰에서 이식물의 이동이나 탈출, 피부의 손상 등의 큰 부작용이 없어 고어텍스가 비성형, 특히 융비술에 유용하다고 판단되어 관련문헌 고찰과 함께 보고하는 바이다. Though autogenous cartilage remains the ideal graft material in nasal surgery, situations exist where an alternative or an additional grafting material is needed. Gore-Tex is one of most recently developed alloplastic material and has been widely used for rhinoplasty. But there are few reports about the clinical efficacy of this material in rhinoplasty. The authors used Gore-Tex as a nasal implant in 5 cases of augmentation rhinoplasty. In three patients, the Gore-Tex was used with septal or conchal cartilages because the cartilages were not enough for the needed augmentation. In one patient, the implant was removed due to postoperative infection and subsequent augmentation was done with autogenous rib catilage after infection control. During average 20 months of follow-up, complications such as absorption, mobilization, or extrusion of the implant and thinning of the nasal skin were not found. All patients were satisfied with the surgical results. From these results, Gore-Tex can be considered as an effective material in augmentation rhinoplasty when autogenous material is not available or is not sufficient for the proper augmentation.

유치와 영구치에서 치과용 접착제의 전단결합강도

최진영,최남기,박영준,최충호,양규호 大韓小兒齒科學會 2007 大韓小兒齒科學會誌 Vol.34 No.4

The objective of this study was to compare the shear bond strengths of five adhesive systems to the enamel and dentin of primary and permanent teeth. Fifty noncarious primary and fifty permanent teeth were collected and stored in an 0.1% thymol solution at room temperature after extraction. The tested adhesives were: Adper Scotchbond Multi-purpose Plus Adhesive (SM) Adper Single bond 2 (SB), Clearfil SE Bond (SE), Adper Prompt L-Pop (PL), G-Bond (GB). For the shear bonding test, the labial and lingual surfaces of primary and permanent teeth were used. To obtain a flat surface, the labial and lingual surfaces of the teeth were sanded on SiO₂with number 600 grit and then divided into 20 groups of 10 surfaces each. All samples were theromocycled in water 5℃ and 55℃ for 1000 cycles. The results were as follows: 1. For primary enamel, shear bond strengths of SM and SB were significantly higher than that of SE and also SM, SB, and PL were higher than GB(p<0.05). 2. For primary dentin, there were no significant differences among the shear bond strengths of any other bonding systems except differnece between SE and GB. 3. For permanent enamel, SB showed significantly higher mean shear bond strength than those of any other bonding systems(p<0.05). 4. For permanent dentin, SM showed significantly higher mean shear bond strength than that of PL and GB(p<0.05). 5. Between the primary enamel and dentin, there were significant differences in SM, SB, and GB, whereas there was statistically significant difference in PL between the permanent enamel and dentin(p<0.05). 6. Between the primary and permanent teeth on enamel, there were no significant differences among all bonding systems, whereas there were statistically significant differences in SM and SB between the primary and permanent teeth on dentin(p<0.05). 본 연구에서는 최근에 개발된 치과용 접착제를 대상으로 유치와 영구치의 법랑질과 상아질에 대한 결합력을 비교 평가하여 입상에서 상아질 접착제를 적절하게 선택하는데 도움을 주고자 시행하였다. 실험재료로 Adper Scotchbond Multi-purpose Plus Adhesive (SM; 3M ESPE,USA),Adper Single bond 2 (SB; 3M ESPE,USA),Clearfil SE Bond (SE; Kuraray Medical Inc.,Japan),Adper Prompt L-Pop (PL; 3M ESPE,USA),G-Bond (GB:GC Cooperation Toyko,Japan)를 이용하여 전단결합강도를 평가하여 다음과 같은 결과를 얻었다. 1. 유치 법랑질에서 전단결합강도는 SM이 28.47±7.93 MPa로 가장 높았고 SB (28.18±6.84),PL (24.02± 6.14),SE (21.70±6.56),GB (17.70±6.68) 순이었다. SM과 SB는 SE보다 통계적으로 유의하게 높은 결합 강도를 보였으며,SM,SB,PL은 GB보다 높았다(p<0.05). 2. 유치 상아질에서 전단결합강도는 SE가 28.72±14.44MPa로 가장 높았고,PL (20.10±6.13),SM 07.72± 10.65),SB (15.48±2.66),GB (10.10±5.45) 순이었으며 SE와 GB간 에는 유의한 차이가 있었으나,다른 군 들 간에는 유의한 차이가 없었다. 3. 영구치 법랑질에서의 전단결합강도는 SB가 28.36±5.68 MPa로 가장 높았고 SM (22.77±4.63), PL(22.05 士6.57),SE (21.74±4.62),GB (15.60±6.75)순이었다. SB는 다른 접착제보다 통계적으로 유의하게 높은 결합력을 나타냈으며,GB는 가장 낮은 결합력을 보였다(p(0.05). 4. 영구치 상아질에서의 전단결합강도는 SM이 28.22±5.56 MPa로 가장 높았고,SB (21.68±7.44),SE (20.13 ±9.88),GB (14.30±6.81),PL (14.18±5.88)순이었으며,SM은 PL,GB와 유의한 차이가 있었다(p<0.05). 5. 유치의 법랑질과 상아질 간에는 SM,SB,GB에서 유의한 차이가 있었고,영구치 법랑질과 상아질 간에는 PL에서 유의한 차이가 있었다(p<0.05). 6. 유치 법랑질과 영구치 법랑질 간에는 모든 접착제에서 유의한 차이가 없었으나,유치 상아질과 영구치 상아질 간에는 SM과 SB에서 유의한 차이가 있었다(p<0.05).

잎담배 생산농가의 경작규모별 곁순방제 소요노동력 조사

최상진,김영신,이학수,석영선 충북대학교 연초연구소 2004 煙草硏究 Vol.19 No.-

This study was carried out to decect efficient method of sucker control classifed by cultivation hectarage per farm in 57 farms selected in the main producing districts of flue-cured and burley tobacco. In topping, it was no difference of working hours by cultivation hectarage per farm in flue-cured and burley tobacco. Suckering was the best in working hours among working type, and the more cultivation hectarage per farm was small, the more working hours of topping, suckering and application of suckercide was increased. Application of system suckercide shows a decrease as compared with application of contact suckercide but the decrease of working hours in application of contact suckercide by cultivation hectarage per farm was larger than in system suckercide. 경작면적별 효율적인 곁순억제방법을 알아보고자 황색종 및 버어리종 주산지에서 57개 경작농가를 선정하여 조사한 결과를 요약하면 다음과 같다. 1. 적심작업의 경우 황색종과 버어리종 모두 경작면적에 의한 노력소요량의 차이는 없었다. 2. 곁순제거작업은 다른 작업에 비해 노력소요량이 가장 많았고, 경작면적이 작을수록 노력소요량이 증가하였다. 3. 황색종과 버어리종 모두 침투성 곁순억제살포작업에 비해 접촉성 약제살포작업에서 노력소요량이 많았으나 경작면적이 큰 경우 접촉성 약제 살포작업 노력소요량 감소폭이 침투성 곁순억제제 살포작업에 대한 노력소요량 감소폭보다 컸다. 4. 각 작업에 대하여 농가간 최저 및 최고 노력소요량 차이가 큰 것으로 나타나 조사방법과 시기를 보완하여 보다 체계적이고 세밀한 조사가 추가적으로 이루어져야 할 필요가 있다.

指數的 減損이 發生하는 品目의 在庫 모델에 關한 硏究

崔震永 경기대학교부설 산업기술종합연구소 1987 산업기술종합연구소 논문집 Vol.3 No.-

An inventory model in which the items decay exponentially and the lead times are probabilistic, is studied in this paper. The inventory level is reviewed continuously, and when shortages are occurred, two cases of allowing backorders and lost sales are considered respectively. In finding optimal lot sizes and reorder point for this model, a heuristic method is applied.

중년 여성의 운동형태별 영양섭취에 관한 연구

최승욱,백영호,김수진,문미자 釜山大學校 附設 體育科學硏究所 2005 體育科學硏究所 論文集 Vol.21 No.1

With middle-aged women living in B metropolitan city as subjects, classified were two groups : the women who take steady exercise for over 6 months and the women who take no exercise, and a comparative analysis was made of the total caloric intake, the ratio of the intake of three major nutrients, the intake of micronutrients, and the amount and ratio of daily dietary intake, according to the type of exercise, with the following results.......

活性炭에 依한 메타크레졸 吸着特性에 관한 硏究

崔榮鎭,鄭在灌 成均館大學校 科學技術硏究所 1995 論文集 Vol.46 No.1

Adsorption on activated carbon on the basis of an effective and widely used process for removing m-cresol from municipal and waste waters has been studied. In this study, the m-cresol adsorption from aqueous solutions through batch equilibrium (isotherm) test was performed using the activated carbon manufactured by Shinyo Pure Chemicals Co. The results were as follows : 1. In the test of pH effects on adsorption, maximum adsorption capacity on activated caron was observed at pH 7 in solutions and m-cresol was adsorbed better in acid solution than in basic solution. 2. The adsorption isotherm experiments were conducted at various initial concentrations and at inital pH fixed and no pH fixed in solutions, with varying carbon dosages. As the best fit Freundlich adsorption isotherm in solution at pH 7 was determined as follows: q_e = 59.8282 C_e^0.4163 (pH 7 fixed) 3. At the flow rate of 450㎤/min greater that 420㎤/min above which the film diffusion resistance was minimized in the differential bed column tests, the reaction kinetics for the removal of m-cresol in aqueous solution by activated carbon showed r=0.1285 C_fc^0.9948 + [0.08469 log C_i - 0.5828]q_2^(0.1067C_i^0.3385) 4. The adsorption capacity of activated carbons showed better performance in small particles than in large ones due to large suface area of small particles.

3급 부정교합 아동의 악안면 두개 형태의 분류에 관한 연구

최영철,배호진 大韓小兒齒科學會 1994 大韓小兒齒科學會誌 Vol.21 No.1

There exists racial distinctives in accordance with the configuration of craniofacial complex and the configuration differs with the structual feature related to the malocclusion. Within the same malocclusion groups of the identical racial species, the different features of facial configureration also exist by the co-relation, location and size of the structures. Therefore, it is requested to pay a careful attention for the diagnosis and treatment planning. This study was performed to classify the configuration of the craniofacial skeleton of the growing korean children who had the Angel´s Class Ⅲ malocclusion with. In order to get the configurational classification, 73 children´s cephalometric radiographs had been measured with the Enlow´s Counterpart Analysis, and statistical approach reached the following results by classifying the variables. The followings are summerized results. 1. Structural aggregate effects consisting each type of the craniofacial skeleton was forming mandibular protrusion, but it showed respective partial characteristics. 2. Ground samples had been classified to type A(22 children), type B(28 children), and type C(23 children) by the statistical approach. 3. Type A represented a severe mandibular protrusion effect in alignment of the middle cranial fossa. This type showed the short middle and low facial length, while representing the ramus alignment and width were weakening mandibular protrusion effect (Brachycephalic trend Class III malocclusion). 4. Type B represented neutral effect in alignment of the middle cranial fossa. This type showed short middle and long low facial length, while representing the ramus alignment and width severing mandibular protrusion effects (Mesocephalic trend Class III malocclusion). 5. Type C represented A most severe maxillary protrusion effect in alignment of the middle cranial fossa and ramus alignment. This type showed long middle and short low facial length, while representing a most severe protrusion effect in the ramus width and dentoalveolar region(Dolichocephalic trend Class III malocclusion).

안구의 비색소성 모양체 상피에서 발생한 유두상 선암종 -1예 보고-

최현주,최영진,이연수,이은정,강석진,김병기,심상인 대한병리학회 1998 Journal of Pathology and Translational Medicine Vol.32 No.12

손가락 빨기로 인한 부정교합의 치험례 : CASE REPORT

문상진,최영철 大韓小兒齒科學會 2004 大韓小兒齒科學會誌 Vol.31 No.1

손가락 빨기는 유아의 심리적인 욕구와 영양적인 욕구에서 유발되어 흔히 2~3세까지는 정상적으로 간주된다. 이 시기까지의 상, 하악골과 교합을 포함하는 치열궁에의 영향은 습관의 중단과 함께 자연적으로 개선되는 경향을 보이는 것으로 알려져 있다. 3.5~4세 이후까지 손가락 빨기가 지속된 경우, 이로 인해 유발된 부정교합의 정도가 심하고 상, 하악골 발달의 부조화가 현저하며 자연적인 개선을 예측하기 어려울 때에는 적극적인 치료를 시행하는 것이 바람직하다. 습관의 중단 및 습관으로 인한 부정교합과 심한 골격적 부조화를 해소하기 위해 Fra¨nkel appliance는 매우 효과적인 장치이다. 본 증례는 경희대학교 치과병원 소아치과에 내원한 환아 중 손가락 빨기로 인한 심한 수평피개도와 상, 하악골 발달의 부조화, 심하게 함몰된 안모를 가진 3세 어린이와 정중선 변위, 안면 비대칭, 편측성 구치부 반대 교합을 지닌 4세 어린이에서 습관의 중단과 부정 교합의 치료를 위해 Fra¨nkel appliance를 이용해 치료하였다. 환아들은 Fra¨nkel appliance를 장착한 이후에 습관이 바로 중단되었으며 증례 1 에서는 심한 수평피개도와 상, 하악골의 부조화가 FR-Ⅱ 장착 16개월 후 개선되었다. 증례 2 에서는 정중선의 변위, 하악골의 편위, 편측성 구치부 반대교합, 안모 비대칭 이 FR-Ⅲ 장착 10개월 후 개선되었다. Fra¨nkel appliance는 골격적 부조화의 개선 및 Habit breaker로서 추천할 만한 장치이다. The habit of finger sucking is a reflex occurring in the oral stage, due to nutritive and psychological desire. The habit of finger sucking is considered to be normal till 3 years of age. Dento-skeletal effect on maxillo-mandibular complex including occlusion is naturally correction, when habit stopped before 3 years. If finger sucking continues till 3-4 years, Finger sucking leads to severe malocclusion and remarkable discrepancy maxillo-mandibular complex, which is difficult in expectation of natural correction. It is necessary to positive treatment. Treatment of malocclusion, as related to finger sucking is classified two methods. (psychological approach and orthodontic appliance) To stop a habit and to correct severe skeletal discrepancy and malocclusion, fra¨nkel appliance is very effective device. This study is to report two cases of treatment of malocclusion, as related to finger sucking. 2 years 10 months old girl with severe overjet, maxillo-mandibular skeletal discrepancy and severe convex facial profile was treated with a FR-Ⅱ appliance. Finger sucking habit stopped immediately. After 16 months, severe overjet, maxillo-mandibular skeletal discrepancy and severe convex facial profile was corrected. 4 years 2 months old girl with midline deviation, mandibular right shift, collateral posterior crossbite and facial asymmetry was treated with a FR-Ⅲ appliance. Finger sucking habit stopped immediately. After 10 month, Midline deviation, mandibular right shift, collateral posterior crossbite and facial asymmetry were corrected. FR-appliance is a recommendable appliance for a habit breaker and correction of skeletal discrepancy.