뇌량발생 부전증

전병윤,최중언 대한신경외과학회 1988 Journal of Korean neurosurgical society Vol.17 No.6

Thirty three cases with agenesis of the corpus callosum were reviewed from the base of brain CT findings for last 7 years. Clinical features, associated clinical anomalies and CT findings were also analysed and the embryological basis for agenesis of the corpus callosum were reviewed from the literature.

殘留應力을 考慮한 鎔接材의 疲勞龜裂 進展擧動에 關한 硏究

최병기,이을호,국중민,기준호,임선빈,정장만 朝鮮大學校 機械技術硏究所 2000 機械技術硏究 Vol.3 No.1

The effect of welding residual stress on the initiation and propagation of fatigue crack is investigated so as to study the fatigue behavior in welding residual stress field. Especially, the relation between welding residual stress and fatigue crack opening behavior is investigated and the redistribution of residual stress as a fatigue crack propagates is examined. Following results are obtained. 1) In case of the load range is constant, as the stress ratio is changing to 0.1, 0.33, 0.5 the propagation life is constant but the growth life decreases. And than, when maximum load or minimum load is constant, as the stress ratio increases the growth life and propagation life increase. 2) The fatigue crack propagations rate da/dN appears to accelerate when the stress intensity factor range ΔK is less than 15MPa-m^1/2. 3) The residual stress that is appeared by welding decreases after cutting. 4) Fatigue crack propagation ratio is affected by tensional and compressible residual stress at the initial time, but it's similar to the original in the more than 20mm of crack length.

교육대학교 경제관련 교육과정 실태 분석

최병모,김정호,전희옥 한국경제교육학회 2004 경제교육연구 Vol.11 No.1

Open-face Stainless Steel Crown을 이용한 유전치의 치료에 대한 증례보고

최형준,이제호,최병재,김종민 大韓小兒齒科學會 1997 大韓小兒齒科學會誌 Vol.24 No.4

In spite of the improvements of the techniques in the field of preventive dentistry, many children still present with extensive destruction of primary anterior teeth. Not only the practioner must consider the pulp state of the primary incisor, but also restore the form, function and esthetics of the tooth. Restorative treatment of primary incisor tooth requires durability, retention and esthetics. Stainless steel crowns used in restoring primary anterior teeth is retentive and durable in comparison with the composite resin, celluloid crown. But they are not esthetic. To enhance the esthetics of the anterior stainless steel crown without reducing its superior retention, an open-face stainless steel crown has been suggested. Several authors have suggested cutting away the labial portion of the stainless steel crown and placing the composite resin in that area. By following this technique, the practioner can prepare a retentive, durable, and esthetic restoration for primary teeth which have suffered from extensive loss of teeth structure. In addition, the single missing primary anterior teeth can be successfully restored by soldering the stainless steel crown together. Open-face stainless steel crown is indicated in the areas of large interproximal lesions involving incisal edge, crown fracture with pulp exposure and congenital malformation of the teeth. By this technique, the practioner can restore primary anterior teeth successfully regardless of the amount of remaining tooth structure, bruxism habit and presence of attrition. In this case, rampant caries with extensive loss of tooth structure and single missing of primary anterior tooth hart been successfully treated with open-face stainless steel crown.

상악 영구 중철지의 외상성 치근파절 : 증례보고 A CASE REPORT

최형준,곽지윤,이종갑,최병재 大韓小兒齒科學會 2003 大韓小兒齒科學會誌 Vol.30 No.3

청소년기에는 두개악안면부위의 외상성 손상이 흔하다. 그러나 상아질, 백아질, 치수를 포함하는 치아파절로 정의되는 치근파절은 비교적 드물다. 치근파절에 대하여 취할 수 있는 적절한 조치는 파절편의 치관부위를 재위치시키고, 2∼3달간 레진강선 고정술을 시행하는 것이다. 치수과사나 치근흡수의 징후가 나타날때까지 근관치료를 보류해야 하는데 대부분의 증례에서 파절편의 치근부위는 그 생활력을 유지하기 때문이다. 본 증례의 10세 4개월된 남아는 상악영구중절치의 치근파절을 주소로 연세대학교 치과병원에 내원하엿으며, 그후 7년동안 동일부위에 2번의 반복적인 외상이 있었으나 파절편 치관부의 재위치, 레진 강선 고정술, 근관치료 시행 후 임상적으로 방사선학적으로 비교적 양호한 치료결과를 얻었기에 보고하는 바이다. Traumatic injuries in the young permanent dentition are common, but root fractures, defined as fractures in volving dentin, cementum and pulp, are relatively uncommon. Appropriate management of root fracture involves repositioning the coronal portion of the tooth fragment and firm immobilization with a splint for 2 to 3 month. Root canal treatment should not be initiated until the sign of necrosis or resorption are apparent because in most cases, the apical fragments maintain their vitality. The following case report describes a patient with root fractures injured three times over the period of 7 years. The results, clinically and radiographically, were acceptable, but term periodic evaluation is required.

트레드밀 걷기운동 형태에 따른 심폐기능에 미치는 효과

전종귀,최재청,조병준 충남대학교 체육과학연구소 2006 體育科學硏究誌 Vol.23 No.1

The purpose of this study was to investigate the The effect of Treadmill Walking Conditions on Cardiovascular Function. Ten healthy females were participated in this experiment. Subjects walked on a comfortable walking speed(2.74km/h) under three conditions. Three conditions were : First, without a knee immobilized and crutches(normal) Second, with a low leg immobilized(cast), third, with a low leg immobililized and cruthes(cast and crutch). Ventilatory Volume, Oxygen Cost, Respiratory Exchange Ratio, Kcal, Ventilatory Equivalent were measured by Gas analyzer, FIR by Polar heart rate tester.. Results of this study were as follows : First, Ventilatory Volume of cast and crutch group increased as compared with normal group and cast group(p<0.01). Second, Oxygen Cost of cast and crutch group increased as compared with normal group and cast group(p<0.01) Third, In Respiratory Exchange Ratio and Ventilatory Equivalent, no significant differences existed among the three groups. Fourth, Kcal of cast and crutch group increased as compared with normal group and cast group in 15minutes(p<0.01), 18minutes(p<0.01), 21minutes(p<0.05), but in the other time, no significant differences existed among the three groups. As a results, Cardiovascular Function of knee immobilization and crutch group increased during level walking at comfortable walking speed(2.74km/h) as compared with knee immobilization group and normal group. Therefore, This fact must be considered during walking training and exercise.

구순 구개열 환아의 수유 보조 장치에 대한 증례보고

최형준,손흥규,최병재,박동석 大韓小兒齒科學會 1995 大韓小兒齒科學會誌 Vol.22 No.2

Cleft lip, cleft palate, cleft lip and palate are the most common congenital anomalies in cranio-orofacial region. These anomalies lead to esthetic problem as well as to difficulties in feeding and speech and also to chronic infection of upper airway and to disturbance of jaw growth during growing up. Especially, some difficulties during feeding make parents to be confused and puts infants in dangerous position. But these difficulties can be controlled by proper feeding methods according to pattern of cleft lip and palate. Among these feeding methods, feeding appliance is the most safe and relatively easy to manufacture. Early wearing of this appliance makes cleft lip and palate infants to a normal feeding and weight gain. As a member of team approach for the treatment of cleft lip and palate, a pediatric dentist should solve the feeding problems which cleft lip and palate infants and its parents are confronted and help in receiving further treatment.

Methotrexate 치료를 받고 있는 활동성 류마티스 관절염 환자에서 etanercept의 유효성과 안전성에 관한 연구

최병렬,강태영,정청일,이혜순,엄완식,김태환,전재범,유대현,배상철 대한내과학회 2004 대한내과학회지 Vol.66 No.5

목적 : 류마티스 관절염을 앓고 있는 한국인 중에 기존 DMARDs로 치료 실패하였고, 고정용량의 MTX를 복용하고 있는 환자들에 있어서 etanercept의 유효성과 안전성을 평가하고자 하였다. 방법 : 기존 DMARDs로 치료 실패한 활동성 류마티스 관절염 환자 76명을 대상으로 하여 단일군, 공개시험을 하였다. 대상 환자들은 고정용량의 MTX를 복용하면서 etanercept 25 mg을 1주일에 두 번 피하 주사하였으며 12주간 투여하였다. 유효성은 ACR 20, ACR 50,조조강직 시간으로 평가하였고, 약제의 안전성은 이상반응 등으로 평가하였다. 결과 : 대상 환자는 총 76명으로 평균 연령은 45.2세, 남자 5명, 여자 71명이었다. 84.4%인 54명이 12주째에 ACR 20을 만족하였고, 53.1%인 34명이 12주째에 ACR 50을 만족하였다. 조조 강직 시간은 치료 전 203.3분에서 치료 12주째 42.6분을 평균 74.5% 호전되었다. 가장 흔한 이상반응은 주사부위 반응이었다. 이외에도 상기도 감염, 오심, 안면부종 등이 발생하였으나 심각한 부작용은 없었다. 결론 : etanercept는 효과적이고, 안전한 류마티스 관절염 치료 방법이며 특히 MTX치료에도 불구하고 활동성인 류마티스 관절염에 기대되는 치료라고 할 수 있다. Background : This study was performed to investigate the efficacy and safety of etanercept in active rheumatoid arthritis patients with stable dose of methotrexate in Korean. Methods : In a 12 week, single arm, open trial, we assigned 76 patients with active rheumatoid arthritis who had an inadequate response to disease-modifying antirheumatic drugs. Patients received twice-weekly subcutaneous injections of etanercept 25 ㎎ while containing to receive methotrexate at a stable dose of 7.5~25 ㎎ per week. The clinical response was defined as the percent improvement in disease activity according to the criteria of the American Collage of Rheumatology (ACR) at 12 weeks. Results : Etanrecept led to significant improvements in disease activity and was safe and well tolerated. At 12 week, 84.4% of the patients receiving 25 ㎎ of etanercept achieved a 20% ACR response, and 53.1% of those receiving etanercept achieved a 50% ACR response. The most common adverse event was injection-site reaction. Other advanse events were upper respiratory infection, nausea, and facial edema, but there were no serious adverse events associated with etanercept. Conclusion : In active rheumatoid arthritis patients, etanercept was safe, well tolerated, and provided rapid clinical improvements.

역설적 주인공

최병준 서원대학교 인문과학연구소 1995 인문과학연구 Vol.4 No.-

혼합치열기 반대교합자에서 상악골 전방견인장치를 이용한 치료증례

최형준,이제호,최병재,김은영 大韓小兒齒科學會 1996 大韓小兒齒科學會誌 Vol.23 No.3

The prevalence of class Ⅲ malocclusion is approximately 5∼9%, and about one fourth of this malocclusion is due to underdeveloped maxilla. Maxillary protraction appliance is an orthopedic device which promote the growth of a deficient maxilla by applying extraoral force to actively growing patients. The object of using maxillary protraction appliance is to guide a normal growth of maxilla and mandible and improve the occlusal relationship and also improve the facial profile. The author treated three patients whom were diagnosed as a class Ⅲ malocclusion due to deficient maxilla using maxillary protraction appliance and the followings are the conclusions : 1. In these cases, anterior crossbite was corrected by anterior movement of maxilla and downward backward rotation of mandible and simultaneously, anterior facial height was increased. 2. The amount of dental change compare to skeletal change was greater as the patients got older. 3. When 500gm of force to each side was applied, the treatment period has been decreased. 4. As a result of applying the force between maxillary first primary molar and canine, there was a small degree of changes in palatal plane. So, it can be concluded that the maxillary protraction appliance is effective in treating growing patients with a deficient maxilla.