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소정원,이광희,라지영,안소연,김윤희,반재혁 大韓小兒齒科學會 2010 大韓小兒齒科學會誌 Vol.37 No.1
Ectopic eruption is caused by an abnormal direction of eruptive path, most common in maxillary first molar, mandibular lateral incisor, and maxillary canine, and sometimes mandibular first molar. Ectopic eruption of first molar leads to abnormal root resorption of second deciduous molar, which, if left untreated, could cause premature loss of second deciduous molar; mesial tilting and rotation of first permanent molar; lack of space for eruption of second premolar; and occlusal problems. Therefore early treatment is advised when diagnosed as ectopic eruption. Treatment of ectopic eruption in the first permanent molar involves providing proper guidance for the direction of eruption using interproximal wedging and distal tipping methods while preserving second deciduous molar. This case report shows satisfactory results of the ectopic eruption of mandibular first molars in young patients who were treated with Humphrey appliance and Halterman appliance. 이소맹출은 치아가 비정상적인 위치로 맹출하는 경우를 말하며, 주로 상악 제1대구치, 하악 측절치, 상악 견치에서 발생하며 하악 제1대구치에서는 드물게 발생한다. 제1대구치의 이소맹출은 흔히 제2유구치의 비정상적인 치근흡수를 야기하며, 이를 방치하게 되면 제2유구치의 조기상실, 제1대구치의 근심경사 및 회전, 제2소구치의 맹출 공간 부족 및 교합문제 등을 야기하게 되므로 이소맹출로 진단될 경우 조기 치료가 추천된다. 이소맹출은 대개 통상적인 방사선검사를 통해 발견되나, 간혹 제2유구치의 치근흡수가 심할 경우 치수가 감염되어 동통을 야기하는 경우도 있다. 이소맹출의 치료는 제2유구치를 보존하면서 제1대구치의 맹출 방향을 바로 잡아 주는 것으로 크게 치간이개(interproximal wedging)와 원심경사이동(distal tipping)을 이용한 방법을 사용한다. 본 증례들은 하악 제1대구치의 이소맹출을 보이는 환아들로, Humphrey appliance와 Halterman appliance를 이용하여 양호한 치료 결과를 얻었기에 보고하는 바이다.
소정원,라지영,이광희,안소연,김윤희 大韓小兒齒科學會 2010 大韓小兒齒科學會誌 Vol.37 No.4
주의력결핍-과잉행동장애(Attention Deficit-Hyperactivity Disorder, ADHD)는 학령기 어린이의 가장 흔한 정신장애로 점차 증가하는 추세이다. ADHD 어린이들은 자극에 선택적으로 오래 집중하는 것을 어려워하고, 말이 많거나 허락 없이 자 리에서 일어나고 뛰어다니며, 팔과 다리를 끊임없이 움직이는 등 활동 수준이 높다. 또한 충동적인 성향이 있어서 넘어지거나 사고를 당하는 경우도 많다. 이에 치과치료 시 행동조절, 구강위생, 외상 등의 문제를 예상할 수 있는 바, 치과의사의 관심이 증대되어야 할 필요가 있다. 본 증례는 ADHD로 진단받은 만 8세 여아로 약물진정 및 심리적인 행동조절법을 이용해 치과적 주소를 해결해 주었고, 문 헌고찰을 통해 다소의 지견을 얻었다. Attention Deficit-Hyperactivity Disorder(ADHD) is the most common psychiatric disorder in school-age children which is increasing gradually. It is hard for ADHD children to focus on particular stimulus for a long time. ADHD children are characterized by hyperactivity which shows in behaviors like, talking too much, getting up from their seats without permission, running around, keep on moving their arms and legs. ADHD children have problems with impulse controlling that they tend to fall and get into an accident very often. Thus dentist’s attention and care must increase when dental treatment is performed with ADHD children since behavior control, oral hygiene problems, and trauma might be expected. By using sedative drugs and psychological behavior control, chief complaint was resolved in a 8-years-old female diagnosed for ADHD.
PLGA미립구의 크기에 따른 인간디스크세포의 증식 및 표현형 분석
소정원,김순희,백미옥,임지예,노혜원,이나리,김문석,유규하,조양하,이승진,민병현,강길선,이해방 한국조직공학과 재생의학회 2007 조직공학과 재생의학 Vol.2 No.1
The PLGA microspheres can create an environment conductive to promising candidate as an injectable system for tissue engineered intervertebral disc(IVD). The final goal of this study was to investigate the condition of PLGA microspheres as microcarriers for IVD cells. We prepared PLGA microspheres using oil-in-water(O/W) solvent evaporation method and investigated the size variation of the microspheres(180~425 μm). Human disc cells were used in a prospective study of attachment, proliferation, and gene expression within various size of PLGA microspheres. Mophology of cell attached on the microspheres was studied using scanning electron microscopy (SEM). Cellular behavior in response to various size of PLGA microspheres was analyzed using MTT assay and reverse transcriptase - polymerase chain reaction(RT-PCR). SEM showed that cells could be bridge between microspheres with elongated shapes. MTT assay revealed that the cells could be attach, proliferate and spread on PLGA microspheres, in particular on the ones having size below 250 μm. In RT-PCR results, we observed strongly specific gene expression of type collagen at more 250 μm microsphere. In conclusion, this result will be used to injectable system for disc regeneration.
F2211-04 생체조직공학적 의료제품(TEMPs)에 대한 표준 분류
소정원 ( Jung Won So ),김순희 ( Soon Hee Kim ),백미옥 ( Mi Ock Baek ),노혜원 ( Hye Won Roh ),이나리 ( Na Ri Lee ),유규하 ( Gyu Ha Ryu ),조양하 ( Yang Ha Cho ),이승진 ( Seung Jin Lee ),강길선 ( Gil Son Khang ) 한국조직공학과 재생의학회 2008 조직공학과 재생의학 Vol.5 No.1
Tissue engineered medical products (TEMPs) are those protocols and products developed for use in the human body as biological substitutes to restore, maintain, or improve tissue function. So TEMPs may achieve a therapeutic potential from cells, biomolecules, scaffolds, and other materials, and processed tissue and derivatives used in various combinations or alone. Since interactions may occur among the components used in TEMPs, new standard descriptions, test methods, and practices are needed to aid the evaluation of these interactions. Therefore this technical report the aspects of tissue engineered medical that will be developed as standards.