군집분석과 다차원척도법으로 본 유치열의 우식패턴

정승열,이광희,라지영,안소연,김윤희 大韓小兒齒科學會 2010 大韓小兒齒科學會誌 Vol.37 No.2

The purpose of this study was to identify patterns of caries in the dentition of preschool children using cluster analysis and multidimensional scaling. 815 preschool children aged 36-71 months old were examined for caries experience. The first four clusters in the cluster analysis were (1) molars, (2) upper incisors, (3) lower 1st molars, and (4) upper 1st molars in teeth, (1) occlusal surfaces of lower molars and upper 2nd molars, (2) mesial surfaces of upper central incisors, (3) occlusal surfaces of lower 1st molars, and (4) separation between occlusal surfaces of upper and lower 2nd molars in tooth surfaces, and (1) proximal surfaces of upper anterior teeth, (2) occlusal surfaces of lower molars, (3) buccolingual surfaces of upper anterior teeth and (4) buccolingual, proximal, and occlusal surfaces of upper molars and buccolingual and proximal surfaces of lower molars in tooth surfaces groups. In the multidimensional scaling analysis, teeth could be divided into lower 1st molars, upper 1st molars, upper central incisors, upper lateral incisors, lower 2nd molars, upper 2nd molars, and the rest(canines, lower incisors), tooth surfaces could be divided into occlusal surfaces of lower molars, mesial surfaces of upper central incisors, occlusal surfaces of upper molars, and the rest, and tooth surface groups could be divided into proximal surfaces of upper anterior teeth, buccolingual surfaces of upper anteiror teeth, occlusal surfaces of lower molars, and the rest in the order of the distance from others. In the cluster analysis and the multidimensional scaling analysis, caries patterns were different according to the age. 유치열에 존재하는 우식패턴을 연구하기 위하여 유치열을 가진 유아들을 대상으로 치면별 우식경험도 조사를 실시하고 군집분석과 다차원척도분석을 실시하였다. 연구대상은 367H 월 이상 71 개 월 이하의 어린이 815명 이 었다. 군집분석에서 먼저 분리된 네 개의 군집은, 유치는 (l) 유구치, (2) 상악 유절치, (3) 하악 제1유구치, (4) 상악 제1유구치, 유치면은 (1) 하악 유구치 교합면과 상악 제 2유구치 교합면, (2) 상악 유중절치 근심면, (3) 하악 제1유구치 교합면, (4) 상하악 제2유구치 교합면의 분리, 유치면군은 (l) 상악 유전치 인접면, (2) 하악 유구치 교합면, (3) 상악 유전치 협설면, (4) 상악 유구치 협설면, 인접면, 교합면 및 하악 유구치 협설면과 인접면이었다. 다차원척도분석에서 상호간에 가장 멀리 떨어진 순서로 보았을 때, 유치는 하악 제 1유구치 , 상악 제 1유구치 , 상악 유중절치, 상악 유측절치, 하악 제 2유구치, 상악 제 2유구치, 기타 유치(유견치, 하악 유절치)로 나눌 수 있었고, 유치면은 하악 유구치 교합면, 상악 유중절치 근심면, 상악 유구치 교합면, 기타 유치면으로 나눌 수 있었으며, 유치면군은 상악 유전치 인접면, 상악 유전치 협설면, 하악 유구치 교합면, 기타 유치면군으로 나눌 수 있었다.

基底核病變에 依한 不隨意運動 患者 2例에 對한 臨床報告

김기열,김종대,정지천 한국한의학연구원 1997 한국한의학연구원논문집 Vol.3 No.1

Extrapyramidal movement disorders are divided descriptively into hypokinesias (such as parkinsonism), characterized by poverty and slowness of movement ; hyperkinesias (such as chorea, athetosis, dystonia, ballism, etc.), manifested by abnormal involuntary movement. Chorea refers to widespread arrythythmic movements of a forcible, rapid, jerky, restless type. Choreic movements are noted for their irregularity and variability. They are generally continuous, may be simple or quite elaborate, and affect any part of the body. Dystonia refers to abnormally increased muscular tone that causes fixed abnormal postures. Some patients with dystonia also have shifting postures, resulting from irregular, forceful twisting movement that affect trunk and produce bizarre, grotesque movements and positions of the body. The most frequent and familiar type of focal dystonia is spasmodic torticollis. It consists of an involuntary turning of the head to one side - intermittent at first, then gradually worsening to the point of being more or loss continuous. The combination of blepharospasm and oromandibular dystonia is sometimes referred to as Meige's syndrome. We report two patients with dystonia and chorea in cerebral infarction at basal ganglia. We have experienced good improvement by the oriental medicine and acupuncture trearment. The acupuncture points of LI 4, ST 36, TE 3, GB 34, GB 41, LR 3, GB 39 were used. The therapies of herb-medicine were treated by Zibu-Ganshen, Huoxue-Xifeng-Tongluo.

한반도 중서부 지각구조와 물성연구 : 부여록옥광산에서 산출되는 귀사문석의 광물학적 특성 Mineralogy of precious serpentine from the Booyo Green Jade Mine

김원사,정지곤,이병임,이재열 충남대학교 기초과학연구소 1995 연구논문집 Vol.15 No.-

충남 부여군 외산면에 위치한 부여록옥광산은 원래 석면을 대상으로 가행되었던 광산이었다가 폐광된 후 최근 세계적으로도 매우 희귀한 보석으로 인정받고 있는 귀사문석이 산출되고 있음이 발견되어 현재 채광작업을 재개하고 있다. 부여산 귀사문석은 광산의 주변암체인 선캠브리아기의 편암을 관입압 사문암체를 후기에 이를 다시 관입한 그로슐라 석류석맥의 접촉부를 따라 발달하고 있다. 이번 연구에서는 부여산 귀사문석에 대한 광물학적, 보석학적 특성을 규명하기 위하여 편광현미경, 비중계, 굴절계, 경도계, X선회절분석기, 화학분석, 적외선분광분석법 등을 이용해 연구하였다. 부여산 귀사문석은 짙은 녹색을 띠고 아투명하며 높은 지방광택을 나타난다. 모스경도는 H=5∼6이며 인성은 매우 높은 편이다. 비중은 2.67, 스포트법으로 측정한 굴절율은 No=1.56이다. X선회절분말양상은 7.40(100), 4.64(25), 3,68(68), 2.757(69), 2.530(49), 2.459(32), 2.113(32), 1.710(21)으로 안티고라이트임을 알 수 있었으며, 모암인 사문암도 안티고라이트로 구성되어 있다. 그러나 귀사문석과 사문암의 투명도와 경도 등이 다른것은 구성광물결정의 조직차이가 큰 요인인 것으로 여겨진다. 귀사문석의 주요 화학성분은 42.49% SiO_2, 39.08% MgO, 3.85% Fe_2O_3, and 11.87% H_2O 등이며, 미량원소로는 Cr(2188 ppm), Ni(1110ppm), Co(58 ppm), and Ta(108 ppm) 등이 있다. 적외선분광분석결과는 3600, 1190, 1070, 980, and 610 cm^-1에 흡수 peak를 나타내었다. 부여산 귀사문석(안티고라이트)은 감람석과 휘석으로 구성된 초염기성암이 변질되어 형성된 것으로 해석되며 그 생성반응은 (Fe, Mg)_2SiO_4 (감람석)+(Mg, Fe)SiO_3 (휘석)+2H_O→M_3sI_2O_5(OH_4)(티고라이트)+Fe_3O_4 (자철석). The Booyo Green Jade mine, located in Oesan-myon, Booyo-gun, Chungnam-do, had originally been developed for asbestos. Recently it has re-opened after discovery of precious serpentine. The precious serpentine is a gem variety of serpentine and is regarded as a rare and valuable gem material in the world. The precious serpentine develops along the contact between grossular garnet vein within the host rock serpentinite that had intruded schist of Precambrian age in the area. In this study mineralogical and gemmologicl properties of the precious serpentine from Booyo have been investigated by using polarizing microscope, specific gravity balance, refractometer, hardness tester, X-ray diffractometer, XRF and ICP-MS analyers, and infrared absorption spectroscope. The Booyo precious serpentine is deep green in color an semi-transparent, and also yields a highly oily luster. Mohs's hardness is measured to be H=5-4 with excellent toughness. Specific gravity is determined to be 2.67, and refractive index N_D=1.56 by a distant-vision method. Xray diffraction data shows peaks of 7.40(100), 4.64(25), 3,68(68), 2.757(69), 2.530(49), 2.459(32), 2.113(32), 1.710(21), which corresponds well to that of antigorite. The higher transparency and hardness of the precious serpentine than the neighboring serpentinite are most probably due to textural arrangement of constituent antigorite crystals. The major chemical constituents of precious serpentine are 42.49% SiO_2, 39.08% MgO, 3.85% Fe_2O_3, and 11.87% H_2O with trace elements Cr(2188 ppm), Ni(1110ppm), Co(58 ppm), and Ta(108 ppm). Infrared absorption spectroscopic analysis shows peaks at 3600, 1190, 1070, 980, and 610 cm^-1, Formation of the precious serpentine(antigorite) from ultramafic rock, which was made up of olivine and pyroxene, may represented by the following reaction: (Fe, Mg)_2SiO_4 (olivine)+(Mg, Fe)SiO_3 (pyroxene)+2H_O→M_3sI_2O_5(OH_4)(antigorite)+Fe_3O_4 (magnetite).

광주전남지역 정상신생아의 상부 구순 계측치와 형태에 대한 연구

조안영,양정열,이승찬,천지선 朝鮮大學校 附設 醫學硏究所 2004 The Medical Journal of Chosun University Vol.29 No.1

Background and objectives : The face is the one of the most variable parts of the body and characterized not only by separated part but also by interrelation of the parts. Especially, in the case of bilateral cleft lip and palate, compared with unilateral case, it is necessary to establish the facial anthropometry in newborns, because of current trend of early intervention, such as fetal surgery, lip adhesion, and nasoalveolar molding device. Millard presented the concept of rotation advancement for unilateral cleft lip repair, and, thesedays, this method of cleft lip closure is acknowledged as the most optimal principle. However, it can produce a scar that crosses the upper one third of the philtrum obliquely. The purpose of this study is to determine the configuration of the vermillion tubercle, the Cupid's bow, and the philtrum, and to suppose that which anthropometric data and proportional index could be significant to determine the configulation of the philtrum in case of bilateral cleft lip and other deformity, which can't identify the philtral shape. Materials and Methods : 74 newborn infants, who were full-term normal infant In Gwangju-Jeonnam area were examined from April to June 2003. Mean gestational ages were 39 weeks. Mean birth weight was 3.3 Kg. Five anthropometric data, which were base of columella to tubercle, nasal base to Cupid's bow peak, Cupid's bow to commissure, philtrum, peak to peak, and mouth width were measured. And the proportional indexes of each data were evaluated. Morphologic parameter, which were the shape of vermillion tubercle, the Cupid's bow, the philtrum, were analized. Results : Mean values of five anthropometric data were 14.1±2.2, 10.5±2.7, 16.5±2.5, 6.9±1.8, and 26.7±4.9 each. And the one of these, Philtral width, peak to peak, and 7 proportional indexes which were ①/④, ②/④, ③/④, ⑤/④, ④/③, ④/②, ④/① have a significance according to 3 types of the philtral shape. The most common shape of vermillion tubercle is protrusion type (89.2%), and that of Cupid's bow is normal type (52.7) and that of philtrum is parallel from nostril base to vermilion border (70.7%). Conclusion : My study supplies the plastic surgeon and others with specialized interests in the craniofacial surgical area with fundamental normative population data that will help them decide what IS abnormal. And corrective surgery of the face and cranium is becoming so precise that the techniques and data detailed in this paper are essential to its further development.

광주전남지역 정상 신생아의 코의 형태와 계측치에 대한 연구

이유진,양정열,이승찬,천지선,박상기 朝鮮大學校 附設 醫學硏究所 2003 The Medical Journal of Chosun University Vol.28 No.2

Background and Objectives: Cleft lip and palate are common defects in congenital deformity. They are the most frequent deformity in the face. Nose deformity is most common among various facial deformity at the center of face. So we must operate to correct the deformity at the earliest stage to give a patient and parent spiritual relief from anxiety, and it is the trend of the treatment recently. We must know the facial anthropometry in newborn to try at the early stage, but there is a lack of literature and research on newborns. So we carried out this research to form base data for operations. Materials and Methods : The noses of 90 newborns in Gwangju-Cheonnam area were analyzed quantitatively, based on 10 nasal measuring points and 13 anthropometric values taken directly from the face of newborns. The relationship between the nasal measurements were studied in 11 proportion indices. Results : Following are our mean values in newborn. Width of the nasal root was 13. 9mm. Width of the nose was 22. lrnm, Width of the columella was 4. 5mm. Height of the nose was 22.6mm. Length of the nasal bridge was 20.1mm. Nasal tip protrusion was 8.9mm. Width of the nostril floor was 6.4mm. Thickness of the nasal ala and length of the nasal ala were 4.0mm, 15.4mm. Length of the columella was 3.9mm. The most common nostril shape was Type II (0-45 degrees in inclination of the nostril axis from the horizontal). Nasal index was 97.8. Columella-nasal tip protrusion length index was 43.9. Conclusion : The development of the columella was relatively incomplete in the case of newborn and was the result to appear. The normal indicies could be used clinically in identifying the it's normality as well as morphologic characteristics of the craniofacial structures. They also could be used in differential diagnosis between the morphologically similar congenital craniofacial anomalies. In preoperative design, in setting the criteria of the postoperative results, and assessing the effect of the operation, Finally, they supply the plastic surgeon and the other specialists in the craniofacial surgery with basic normal population data.

하악골 골절수술에서 흡수성 골고정장치의 유용성

문재원,천지선,양정열 朝鮮大學校 附設 醫學硏究所 2005 The Medical Journal of Chosun University Vol.30 No.2

Introduction: The mandible is one of frequent facial bone fracture due to anatomic configuration like the nose and zygoma. When the mandible fractures occured, displacement of segments developed by pulling of strong muscles. And so for reduction of fractured mandible, rigid fixation needs for prevention of displacement. Metal plates and screws are most appropriate device to obtain for prevention of displacement in case of mandible fracture. But metal devices are hampered by temperature sensitivity and interference with radio-graphic imaging, leading corrosion, inflammatory response, the effect of atrophy of cortical bone, the need for a subsequent operation for removal. To overcome drawbacks of metal rigid fixation devices, there had been a continuous research on the development of a bioabsorbable skeletal fixation system using polymers of polylactic and polyglycolic acid. Material and Method: One hundred sixty eight fractures of the mandible in 110 patients (84 male patients and 26 female patients) were treated by open reduction and internal fixation using bioabsorbable plates and screws (BiosorbFX^(R), Bionix Implants, Inc., Finland). The average age is 36.5 years old. Total number used absorbable devices and 972 (182 plates and 790 screws). Patients were evaluated during the follow-up period, which ranged from 1 to 30 months. Common fracture sites are para symphysis (26%), body (19%) and angle (18%) which are experienced. Intermaxillary fixation placed before operation but removed after internal fixation of absorbable devices. After 5 days from operation, temporomandibular joint movement are started. We encountered no significant intraoperative difficulties obtaining placement of the devices. Result: None of patients has been experienced any implant-related complication including fracture instability or relapse, or radiographic evidence of osteolysis except one case of delayed osteomyelitis and four cases of intraoral infections. Conclusion: Absorbable devices have many advantage, that are lower infection rates, satisfactory strength, no metallic irritation, no restrictive growth of the neurocranium in pediatric patients, only one surginal procedure. Absorbable devices have some problems, such as slow and expense. But we experienced good results using absorbable devices to mandible fracture, and these results indicate that the use of bioabsorbable implants can be considered routinely for the fixation of mandible fractures.

엄지손가락 과다증을 동반한 수열에서 이엽피판을 이용한 제 1 갈퀴막 공간의 재건

문재원,천지선,양정열 朝鮮大學校 附設 醫學硏究所 2006 The Medical Journal of Chosun University Vol.31 No.2

Cleft hand is a rare disease that is characterized by absence of one or more digits, It was introduced by Abroise Pare in 1575. The cause of this is not identified yet. Polydactyly is defined as normally pentadactylous hand with excess digits, It was reported that the possible cause of polydactyly is increased folding of AER(apical ectodermal ridge). There are so rare cases that cleft hand is accompanied with preaxial polydactyly. We experienced a case of cleft hand with preaxial polydactyly. That case had narrowing of first web space and thumb polydactyly. Untilil now, there have been so many methods of reconstruction of web such as skin graft, z-plasty, dorsal and volar flap, etc. We reconstruct the first web with bilobed flap elevated from polydactylized thumb. As it has good results of functional and cosmetic properties, It's very useful to use accessory tissue from polydactylized finger such as our case.

우리나라 어린이와 청소년의 구강건강을 위한 공공서비스의 현황과 전망

이광희,김지영,송지현,김윤희,임경욱,정승열 大韓小兒齒科學會 2008 大韓小兒齒科學會誌 Vol.35 No.3

소아치과학이 목표로 하는 어린이와 청소년의 구강건강을 달성하기 위하여는 민간 치과의료기관에서 내원 환자를 대상으로 하는 진료만으로는 한계가 있으며 공공서비스(公共service)의 역할이 필요하다. 학교구강보건설이 설치된 초등학교는 전체의 7.2%이었고,초등학교 중에서 불소용액양치사업을 수행한 비율은 57.5%, 급식 후 집단잇솔질을 한 비율은 46.9%이었으며,초등학생 중에서 구강보건교육을 받은 비율은 48.0%, 치아홈메우기를 받은 비율은 12.4%이었다(2006년). 0∼6세 영유아의 약 42%가 지난 1년간 구강검진,불소도포,치면세마,치아홈메우기 중 하나 이상의 예방적 치과진료를 받았으며,받은 장소는 교육시설이 약 18%, 보건소가 약 1%이었다(2005년). 불소농도가 조정된 수돗물을 마시는 인구 비율은 전국 평균이 5.7%이었다(2006년). 학교구강보건사업의 발전을 위해서 행정의 일원화,보건교사에 대한 교육,구강보건교사제도의 도입,순회 학교치과의사와 학교치과병원을 통한 포괄적 진료서비스의 제공 등을 고려할 수 있을 것이다. 또한 아동·청소년 주치의제의 도입으로 민간기관을 통해 공공서비스를 강화하는 방안이 검토되고 있다. To achieve the dental health of children and adolescents which is the objective of the pediatric dentistry, the role of the public service should be increased. The basis of the public service is established by many laws of which the Dental Health Law is most important. The percentages of primary schools that had the school dental health clinic, that implemented the fluoride rinsing program, and that implemented the group toothbrushing after lunch were 7.2%, 57.5%, and 46.9%, respectively, and the percentages of primary school children that received the dental health education and that received the fissure sealing were 48.0% and 12.4%, respective1y(2006). About 42% of infants and preschool children from 0 to 6 years received preventive dental care in the last one year, at the nursery or kindergarten(18%) or at the health center(1%)(2005). The percentage of the health centers that implemented water fluohdation was 11.3%, and the percentage of the population who drank the fluoridated water was 5.7 %(2006). It was suggested that the school dental health administration should be unified, that dental health teachers should be employed, and that the comprehensive dental health care should be supplied to all the children and adolescents through the circuit school dentists and the school dental hospitals in the long term. Also, the dentist in charge system for the children and adolescent was suggested.

상악 유전치부의 치간공간과 인접면 우식에 관한 조사연구

김진영,이광희,라지영,안소연,정승열,임경욱,반재혁 大韓小兒齒科學會 2009 大韓小兒齒科學會誌 Vol.36 No.3

본 연구는 상악 유전치부의 치간공간과 인접면 우식의 상관관계를 평가해보고자 하였다. 익산에 거주하는 만3-7세의 어린이 555명을 대상으로 하였으며 탐침이 통과하는지 여부로 치간공간이 있음과 없음으로 분류하였고 와동이 형성되었거나 법랑질 표면이 연화되었을 경우 인접면 우식이 존재하는 것으로 판단하였다. 연구 결과 다음과 같은 결론을 얻었다. 1. 상악 유전치부의 치간공간은 영장류 공간이 77.4%, 발육공간이 유측절치와 유중절치 사이에서 54.4%, 양유중절치 사이에서 39.0%로 나타났다. 2. 인접면 우식발생율은 우측유견치가 6.3%, 우측유측절치가 14.7%, 우측유중절치가 33.5%, 좌측유중절치가 33.7%, 좌측유측절치가 16.0%, 좌측유견치가 4.7%로 나타났다. 3. 치간공간의 수가 많을수록 상악 유전치의 우식발생율은 낮아졌으나 그 상관관계(r=0.024)는 미약하였다. 4. 상악 유전치부에 공간이 존재하지 않을 경우 존재할 때 보다 평균 우식발생율이 높았으며, 치간공간이 전혀 존재하지 않는 경우 한 곳이라도 치간공간이 존재하는 경우보다 평균 우식발생율이 2배 이상 높은 것으로 나타났다. The purpose of this study was to assess the relationship between interdental spaces and proximal caries in maxillary anterior primary teeth. 555 children aged 3-7 inhabit in Iksan were divided into two groups, depending on the presence of interdental space which was detected by a dental explorer. They were determined to have proximal caries if cavity was formed or the enamel surface was softened. The results were as follows : 1. Regarding interdental spaces, 77.4% had primate spaces; 54.4% had developmental spaces between central and lateral incisor, and 39.0% between central incisors. 2. Interproximal caries incidences in right primary canine, lateral incisor, and central incisor were 6.3%, 14.7%, and 33.5%, respectively. Also interproximal caries incidences in left primary central incisor, lateral incisor, and canine were 33.7%, 16.0%, and 4.7%, respectively. 3. Children with more interdental spaces had less caries incidence, but the relationship was weak(r=-0.024). 4. The mean caries incidence was higher in absence of interdental space of maxillary primary incisors than in presence of space. The mean caries incidence with no interdental space was twice as high as that with presence of interdental space.

부산·울산·경남지역 직업병 감시체계

김정일,김병권,김정원,채창호,이철호,강동묵,김지홍,김진하,김영욱,이영하,이지호,김정호,윤형렬,유철인,정백근,장태원,김운규,윤동영,강진욱,김종은,안진홍,이동준,장준호,이광영,송혜란,최영희,이용환,조병만,최홍렬,고상백,김은아,이유진,홍영습,정갑열,김정만,김준연 大韓産業醫學會 2004 대한직업환경의학회지 Vol.16 No.1

Objective: Occupational medicine specialists in the Busan, Ulsan and Kyung-Nam areas established an area-based occupational disease surveillance system and used this system to collected case information for the purpose of preventing occupational diseases Methods: l l hospital participated in this system. The authors selected five main diseases, which were hand-arm vibration syndrome (HAVS), work-related musculoskeletal disorder (WRMSD), occupational asthma, occupational skin disease and occupational and occupational lung cancer and established their case definitions. All cases were reported on the web, and real time analysis was conducted. Results: Between April 2001 and April 2003, 192 cases of HAVS, 118 cases of WRMSD, 33 cases of occupational asthma, 17 cases of occupational skin disease and 17 cases of occupational lung cancer (for a total of 377 cases of these five main diseases) were reported. most of the HAVS cases came from shipbuilding, and 172 of them (92.7%) were associated with grinding. Of the four main types of WRMSD, carpal tunnel syndrome (CTS) was the most prevalent with 46 cases and shipbuilding was also the main industry involved (83.9%). The ergonomic risk factors involved mainly associated with the hand. In 19 (57.6%) and 4 (12.1%) cases of occupational asthma, the agents involved. The causative agents of occupational lung cancer included Cr, welding fume, PAH, Ni, etc. 10(58.8%) of the cases were diagnosed as squamous cell carcinoma and 5(29.4%) as adenoma. Conclusion: This result showed that an area-based occupational disease surveillance system might provide an effective method of evaluating the prevalence of such diseases, however the Busan, Ulsan and Kyung-Nam provinces are too large to be treated as individual areas. Therefore, the authors suggest that each province should establish its own surveillance system.