맹출 장애를 가진 상악 제1대구치의 외과적 노출을 이용한 치험례

석충기,남동우,김현정,김영진,남순현 大韓小兒齒科學會 2004 大韓小兒齒科學會誌 Vol.31 No.1

치아의 맹출이란 구강내로 치아가 출현하기 전의 악골 내에서의 이동, 구강에 출현하여 교합면에 이르기까지의 이동, 그리고 교합면 도달이후의 추가적인 이동 등 모두를 포괄적으로 의미하는 용어이다. 맹출은 대부분 유전적으로 결정되며 치아가 성장 발육 과정에 따라 구강내로 맹출되는 과정은 preeruptive alveolar bone stage, alveolar bone stage와 mucosal Stage로 구분할 수 있는데, 이들 과정의 어느 단계에서도 장애가 발생하면 치아가 맹출하지 않는다. 맹출 장애의 원인으로는 치배의 부정위, 정상 맹출로의 방해, 치낭 혹은 치주인대의 손상 등이 있다. 맹출 장애 치료에는 유치발거 및 맹출 공간확보, 외과적 노출, 외과적 정위, 외과적 노출 후 견인이 있고, 이 중 외과적 노출이 가장 기본적인 술식이다. 외과적 노출은 영구치를 둘러싸는 점막, 골, 병소, 경우에 따라 치낭 등을 제거하여 개방된 맹출로를 확보하는 것이고, 형성된 맹출로는 레진관(celluloid crown)의 접착, 거타 퍼챠 혹은 산화 아연 유지놀 시멘트, 치 주 포대 등을 노출된 부위 에 충전하여 개방성을 유지하여야 한다. 외과적 노출시에는 치경부 치근의 백악질을 노출시키지 않도록 하여야 하며, 인접치아의 치주 조직이나 치근의 손상도 피 해야 한다 또한 노출 후 치아는 각화된 치은에 위치하여야 한다. 외과적 노출 중에 가해진 손상의 정도는 치아의 병리, 생리 학적 이상의 발현에 영향을 미치므로 주의하여야 한다. 본 증례들은 상악 제1대구치가 맹출 장애를 가긴 증례들이었으며, 이를 개선하기위해 위의 사항을 고려하여 외과적 노출을 시행하였고, 맹출 장애를 효과적으로 개선할 수 있었다. The eruption of permanent teeth represents the movement in the alveolar bone before appearance in oral cavity, to the occlusal plane after appearance in oral cavity, and additive mevement after reaching th the occlusal plane. Tooth eruption is mostly controlled by genetic signals. The eruption stage is divided to preeruptive alveolar stage. alveolar bone stage, mucosal stage according to the process of growth and development. If the disturbance is occured in any stage of eruption, tooth does not erupt. The cause of eruption disturbance are eclopic position of the tooth germ, obstruction of the eruption path and defects in the follicle or PDL. In the treatment of eruption disturbance, surgical procedures are commonly used. There are three kind of surgical procedure surgical exposure, surgical repositioning, surgical exposure and traction Surgical exposure is basic procedure. This involves removal of mucosa, bone, lesion that are surrounding the teeth, dental sac when necessary to maintain a patent channel between the crown and the normal eruptive path into the oral cavity. To ensure this patency, many techniques including cementation of a celluloid crown, packing with gutta-percha or zinc oxide eugenol, or a surgical pack, are used. When surgical exposure is conducted, operators should not expose any part of cervical root cement and not in jure periodontium or root of adjunct tooth. After surgical exposure, tooth should be surrounded by keratinized gingiva. There is direct relationship between the extent of development of pathophysiologic aberrations and the intensity of the manipulative injury inflicted on the tooth by surgical treatment, so operator should consider this thing. In these cases surgical exposure is conducted on Maxillary 1st milars that have a eruption disturbance and improve the eruption disturbance effectively.

관상동맥색전증에 의한 급성심근경색증 4예

김민근,주혜원,강경필,최병돈,박민석,변영섭,고충원,이건주,김병옥 인제대학교 2006 仁濟醫學 Vol.27 No.-

Acute myocardial infarction(AMI) due to coronary embolism can occur in patients with normal coronary artery. Coronary embolism is believed to be a cause of acute myocardial infarction when emergent coronary angiography shows perfectly normal coronary trees, except for the finding of coronary artery occlusion. In this report, we describe four patients with AMI due to coronary embolism who were successfully treated using a thrombus aspiration device and anticoagulation, and those patients had intracardial thrombus arising from the left atrium due to chronic atrial fibrillation and valvular heart disease. Patients with chronic or paroxysmal atrial fibrillation can present with AMI due to coronary embolism, and thrombus aspiration with percutaneous aspiration device is a feasible treatment option for these patients along with anticoagulation the rapy.

직장항문 농양과 치루에 대한 임상적 고찰

김준호,서준하,이석환,이기형,윤충 경희대학교 1997 慶熙醫學 Vol.13 No.4

Cross Hole Type 비 연삭 밀링 인서트의 가공특성에 관한 연구

김택수,이상민,박휘근,채승수,이충석,손일복,김학규,이종찬 한국공작기계학회 2008 한국공작기계학회 추계학술대회논문집 Vol.2008 No.-

This paper reports some experimental results on the machining performance of non-ground cross hole type milling inserts. Six kinds of milling inserts were manufactured without using grinding process. Machining experiments were carried out to compare the machining performance of non-ground inserts with that of ground ones. The experimental results indicate that the cutting forces and surface roughnesses of machined surface of both ground and non-ground inserts are comparable.

수 종의 복합레진 접착 시스템에서의 미세 누출의 비교

석충기,남동우,남순현,김영진,김현정 大韓小兒齒科學會 2004 大韓小兒齒科學會誌 Vol.31 No.4

최근 자가 부식형 접착 시스템이 개발되어 법랑질 및 상아질에 모두 적용할 수 있고, 임상적 술식을 단순화 시켰다. 이 접착 시스템은 적용하기 용이하고 임상적으로도 법랑질 및 상아질에 높은 결합강도를 보인다고 보고되고 있다. 이 연구는 in vitro 상에서 복합레진 5급 와동의 법랑질 및 상아질 경계에서 전부식 처리를 동반한 one-bottle 접착시스템과 자가 부식형 접착 시스템을 사용하였을 때 미세 누출을 비교하기 위해 시행하였다. 교정적 목적으로 발치된 30개의 소구치를 무작위적으로 3개 군으로 나누었다; 1 군 (Single Bond^(�) + Filtek Z250^(�)), 2 군 (Clearfil SE Bond^(�) + Filtek Z250^(�)), 3 군 (Adper Prompt L-Pop^(�) + Filtek Z250^(�)). 표준화된 5급 와동을 각 소구치 협면, 설면에서 백악-법랑경계에 평행하게 형성하였으며, 와동의 치은측 1/2은 백악-법랑경계보다 1mm 치근단으로 연장하였다. 접착 시스템을 제조자의 지시대로 적용한 다음 복합레진을 충전하고 제조자의 지시대로 광중합하였다. 시편을 37℃ 증류수에 5일 간 보관 후 5℃±2℃ 와 55℃±2℃에서 1000회 열순환한 다음, 2% methylene blue 용액에 12시간 침잠시켰다. Isomet^(TM) (Buehler Co., Lake Bluff, IL, USA)을 사용하여 치아를 충전물 중앙에서 종절단한 후 입체 현미경하에서 25배의 배율로 색소 침투도를 평가하였다. 결과는 t-test 와 one-way ANOVA를 이용하여 통계처리 하였다. 결과는 다음과 같았다. ·실험에 사용 된 접착 시스템 중에 미세 누출을 완벽하게 방지하는 접착 시스템은 없었다. ·상아질 경계에서의 미세 누출이 법랑질 경계에서보다 통계학적으로 유의하게 더 많았다(p<0.0001). ·법랑질 경계에서 자가 부식형 접착 시스템은 전부식 처리를 동반한 one-bottle 접착 시스템과 통계학적으로 유의한 차이를 보이지 않았다. ·상아질 경계에서, 자가 부식형 접착 시스템은 전부식 처리를 동반한 one-bottle 접착 시스템과 통계학적으로 유의한 차이를 보이지 않았다. Recently, self-etching adhesive system have been developed and bonding procedures simplified into one or two steps, which are simultaneously applied to both enamel and dentin. These systems are easy to use and have the potential for good clinical success. The purpose of this study is to evaluate in vitro the microleakage on the cementum/dentin and enamel walls in composite resin restoration of Class V cavities, regarding the use of different adhesive systems. 30 human premolars were divided into 3 groups. A standardized Class Ⅴ preparation was prepared on the buccal and lingual surface of each premolar. The preparation were made parallel to the cementoenamel junctions, with the gingival half of the preparation extending 1mm apical to the cementoenamel junction. After adhesive system was applied to teeth as manufacture's recommendation, hybrid resin composite was filled in bulk into the preparation and light polymerized according to manufacturer's recommendations. Specimen were stored in distilled water at 37℃ for 5 days and thermocycled 1000 times (5℃+2℃ and 55℃±2℃), then immersed in a 2% methylene blue solution for 12 hours. After sectioning mesio distally through the restorations, the degree of dye penetration was scored under a stereomicroscope at × 25 magnification. The data were analyzed statistically using t-test and one-way ANOVA. The results were as follows: · There is no adhesive system which can prevent microleakage perfectly. · There is significant difference in microleakage between enamel margin and dentin margin (p<0.0001). · In enamel margin, self-etching primer systems did not show any significant difference comparing total-etching system. · In denin margin, self-etching primer systems did not show any significant difference comparing one-bottle adhesive system used in combination with total-etching.

신장의 미세혈관병증을 동반한 원발성 항인지질 증후군 1 예

김미경,고은미,김진석,차훈석,허우성,고재현,이충현 대한내과학회 2001 대한내과학회지 Vol.61 No.1

Antiphospholipid syndrome is a disease that has continuous high titer of antibodies directed against either phospholipids or plasma proteins bound to anionic phospholipids in serum and shows a variety of clinical manifestations including recurrent venous and arterial thrombosis, recurrent fetal losses, livedo reticularis and thrombocytopenia. Because thrombosis may develop in any vessel, clinical manifestations are variable. Renal microangiopathy has been reported in antiphospholipid syndrome associated with systemic lupus erythematosus and rarely reported in primary antiophospholipid syndrome. But there was no case report of antiphospholipid syndrome accompanied by renal microangiopathy in Korea. Recently, we experienced a 25 years old male patient who had primary antiphospholipid syndrome with intrarenal thrombotic microangiopathy and IgA nephropathy. So, we report this case with review of relevant literature. (Korean J Med fil:86-90, 2001)

스포츠 관광 활성화 개선방안에 관한 연구

조충현,김홍식,박은석,강성찬,이동헌 圓光大學校 附設 體力科學硏究所 2003 體力科學硏究 Vol.26 No.1

This study was conducted to investigate the effects of the marketing strategy based on the traditional wrestling, which affects the tour industry. The study used the simple random sampling method in the group of the Kwang-Ju district citizens. The group representatives were directly interviewed, and 277 interviewees replied with concern. The rest of the interviewees were not interested in the survey. The general characteristics of the interviewees -- gender, age, education, job, monthly salary. -- were used to analyze the items related to Sports Tourism in general. Sport Tourism in general Male interviewees had higher recognition over females in the interview. The rate of experience was low for both genders. According to their education, the satisfaction of sport tourism showed low rate. However, there were many answers where the interviewees, not depending on the age or gender, indicated that they will participate in the future. The policy recommended based upon the results of the study is as follows. There is a need for setting up a new strategy in order to increase participation of sports. Also, it is urgent to set up a sports theme center to raise professional sportsmen and to supply them to where they are needed.

Modified Teuscher Appliance의 치료효과에 관한 연구

안석준,김충배,남동석 대한치과교정학회 2001 대한치과교정학회지 Vol.31 No.4

본 연구의 목적은 modified Teuscher Appliance(MTA)와 bionator를 이용하여 치료한 II급 1류 부정교합 환자의 치료전후 측모 두부방사선계측사진을 비교분석함으로써 두 장치 사이의 치료효과에 대한 차이를 밝혀내어 성장하는 II급 1류 부정교합을 가진 환자들의 치료에 도움을 얻는데 있다. MTA 및 bionator를 이용하여 성공적으로 치료한 혼합치열기 II급 1류 부정교합 환자 20명의 치료전과 치료후 두부 방사선계측사진의 계측항목을 계측한 후, 두군 사이에 나타나는 치료효과의 차이를 알아보기 위해 치료전후 항목의 차이를 구하였다. 이 항목들에 대해 t-test를 시행하여 다음과 같은 결과를 얻었다. 1.양군 사이에 통계적인 유의성이 나타난 선계측 항목으로 Ul to FH, Ul to PP, U6 to PP, U6 to FH, Ar-Pog, ramus height(S-Go), Ll to A-Pog, Ll to facial plane 등이 있었다(p<0.05). 2.양군 사이에 통계적 유의성이 크게 나타난 각도계측 항목으로 SNB, SNA, FABA(FH to AB plane angle), APDI 등이 있었다(p<0.05). 3.양군 사이에 성장양상을 나타내는 Facial height ratio, Bj□rk sum, FMA, SN-MP angle 등은 통계적 인 유의성을 보이지 않았다(p>0.05) 이상의 결과를 통해 II급 1류 부정교합을 치료하는데 있어 bionator는 주로 하악골과 하악치열에 상대적으로 효과가 크게 나타나며, MTA는 상악골과 상악치열에 더 큰 효과가 나타남을 알 수 있었다. 이런 결과는 두 장치가 각기 다른 치료기전을 가지고 있으므로, 다른 종류의 부정교합에 적용해야 한다는 것을 가리킨다. (주요 단어 : Modified Teuscher Appliance, Bionator, II급 1류 부정교합) The purpose of this study was to evaluate treatment effects of the modified Teuscher appliance (MTA) in early Class II division 1 malocclusion. For this purpose, treatment effects of the bionator were compared with those of the MTA. The twenty subjects who were treated excellently with bionator and MTA were selected in each group. In pre- and post-treatment lateral cephalograms, 50 variables were measured, and then the differences between pretreatment and posttreatment data of the bionator and the MTA were statisticallv evaluated by t-test. The results were as follows : 1.The linear measurements that showed large difference between the bionator group and the MTA group are U1 to FH, U1 to PP, U6 to FH, U6 to PP, Ar-Pog, ramus height, Ll to A-Pog, L1 to facial plane (p<0.05). 2.The angular measurements that showed large difference between the bionator group and the MTA group are SNB, SNA, FABA, APDI (p<0.05). 3.The measurements of the growth pattern such as facial height ratio, FMA, SN-MP angle showed no difference between two groups (p>0.05). These results suggest that the bionator influence the mandiblar growth and lower dentoalveolar structures more than the MTA, and the MTA influence upper jaw and upper dentoalveolar structures more than the bionator comparatively in early Class II division I malocclusion. ※ Key words : Modified Teuscher appliance, Bionator, Class II division 1 malocclusion

조선업 근로자의 족부백선 유병률 및 관련 요인

서호석,유철인,이충렬,이지호,김양호,이원신,최지호,성경제,고재경,문기찬 大韓産業醫學會 2002 대한직업환경의학회지 Vol.14 No.4

목적: 울산지역에 소재한 대규모 조선업종 근로자 1,419명을 대상으로 족부백선의 유병률을 조사하고 족부백선의 유병률에 미치는 요인을 조사하여 족부백선의 작업관련성을 알고자 본 연구를 실시하였다. 방법: 근로자 건강진단시 족부백선의 유뮤를 확인하고, 현재 족부백선의 위험인자로 알려져 있는 여러 요인들과 작업, 환경적인 요인들에 대하여 설문조사를 실시하고, 족부백선의 임상적인 양상을 관찰하였다. 결과: 조사결과 족부백선의 유병률은 54.8%로 높게 나타났으며, 직종과 공동목욕탕 이용 유무, 안전화 착용유무, 작업형태, 가족력 유무가 족부백선이 유병률에 영향을 미치는 위험인자로 나타났으나, 다변량 분석결과 가족력과 공동목욕탕 이용만이 통계적으로 유의한 위험인자로 나타났으며(P<0.05), 안전화 착용은 통계적으로 유의하지 않았다. 결론: 이상의 결과에서 사업장내 근로자들의 족부백선의 높은 유병률과 관련된 직접적인 요인은 사업장내의 공동 목욕탕의 이용 여부와 족부백선의 가족력임을 확인할 수 있었으며, 많은 근로자들이 원인으로 지목한 안전화의 착용은 통계적인 유의성은 없었다. 따라서 족부백선이 작업과 직접적으로 관련되었다는 근거는 적은 것으로 보인다. 하지만 일반인보다 높은 유병률을 보이는 것으로 확인된 사업장내 족부백선의 유병률을 감소시키기 위해서는 위험인자로 최종 확인된 작업장 내의 공동 목욕탕의 철저한 위생관리와 함께 가족간의 감염을 예방히기 위한 개인위생관리가 필요하면, 비록 통계적인 유의성은 없었으나 여러 근로자들이 원인으로 지목한 안전화의 개선에도 노력해야 할 것으로 생각한다. Objectives: Recently, tinea pedis has been reprted to be a type of occupational dermatoses because of its high prevalence in specific working conditions. Although there is no doubt that the environment surrounding work places, the usual habits of workers erc ate intimately related to this skin conditions, there is some controversu as to whether or not this condition is a real occupational illness and what is the exact cause of the high prevalence of this illness is. In this study, the prevalence of tinea pedis in workers from the shipbuilding industry was investigated andthe risk factors of this disease were evaluated. This study also aimed to verify whether or not tinea pedis is one of the occupational diseases. Methods: The result of interviews, questionnaires and clinical findings from 1,419 workers who visited the occupational health center for an annual routine check for their health state were analyzed. Results: Among the 1,419 workers, 778 workers (54.8%)had tinea pedis. By simple logistic regression analysis, the prevalence of tinea pedis was found to e affected by some variables, including the jov category, the types of work, the kinds of footwear, whether or not they were using communal baths in the work places, and a family history of tinea pedis. In contrast, by multiple logistic regression analysis, only utilization of the communal baths in the work places and a family history of tinea pedis turned out to be statistically significant risk facrors. Conclusions: In this study, the major factors contributing to the high prevalence of tinea pedis are the use of communal baths in the workplace and a positive family history. However, the wearing of safety shoes was not statistically significant. Therefore, tinea pedis could not be confirmed to be an occupational disease. On the basis of these results, a solution to the environmental hygiene of communal bats and the personal hugiene of individuals needs to be improved in order to prevent tinea pedis.

열공형과 비열공형 피질하 혈관성 치매에서 위험인자의 차이에 관한 비교 연구

배희준,정지향,유경호,나덕렬,김상윤,최경규,양동원,손의주,이상도,김재우,박경원,김응규,이재홍,박미영,한일우,함동석,최문성,하충건,최성혜,이애영,이병철,한설희 대한치매학회 2003 Dementia and Neurocognitive Disorders Vol.2 No.2

Backgrounds and Objectives: Vascular dementia is a group of dementing disoders arising from various stroke syndrome. Among these. subcortical ischemic vascular dementia (SIVD) is regarded as a relatively distinct clinical entity. However, MRI patterns of SIVD are not homogenous. In some patients, lacunes are dominant, and in others, subcortical white matter changes are. This study was designed to compare risk factor profiles between SIVD with and without multiple lacunes. Methods: We divided 47 subjects (22 males, mean age. 68 years) recruited from VADAPET (Multicenter Trial For Evaluation Of The Changes In the PET Images Of Subcortical Vascular Dementia Patient) study into two groups one with more than 5 lacunes in deep gray matter (lacune group) and the other with 5 or less(non-lacune group) Clinical characteristics and laboratory findings of two groups were compared. Results: Nineteen of 47 patients (40%) belonged to the lacune group. The lacune and non-lacune groups d d not differ in the following variables: age, hypertension, diabetes mellitus, hyperlipidemia heart disease, history of stroke or TIA, history of trauma or major surgery, family history of hypertension stroke, or dementia, age at diagnosis of dementia, body mass index, white blood cell count, ESR, CRP, fibrinogen, hemoglobin A1C, total cholesterol. LDL cholesterol creatinine, proteinuria, glucosuria, and microhematuria. However, male sex, smoking alcohol. hemoglobin, and HDL cholesterol were possibly associated more with lacune group SIVD than with non-lacune group (p<0 1) Multivariate analyses revealed that smoking, hemoglobin, and HDL cholesterol were independent predictors of SIVD with multiple lacunes Conclusion: Our study suggests that SIVD with multiple lacunes may be significantly different in smoking habits hemoglobin, and HDL cholesterol from SIVD without multiple lacunes.