• Maxillofacial Plastic and Reconstructive Surgery
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• 제22권1호
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• pp.1-14
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• 2000

The purpose of this study was to evaluate the efficacy of adding autogenous bone to the toothash-plaster mixture in the healing process of bone. Full-thickness round osseous defects with the diameter of 20mm were made at the calvarial bone of adult dogs (n=19) bilaterally, which were thought to be critical size defect. The right defects were repaired with the toothash-plaster mixture plus autogenous bone (compressed volume 0.3cc) and the left defects with only toothash-plaster mixture. At 2-, 4-, 8-, 12- and 20- week after implantation, dogs were sacrificed and evaluated the osseous healing of bony defects clinically, radiographically, and microscopically. The results were as follows; 1. At the clinical observation, the wound healed very well without any problem except severe swelling in the early period after operation. Slight depression was recognized at the both sides when the portions of cranial defect were palpated. 2. There were statistically significant differences between toothash-plaster mixture groups and autogenous bone added groups at the same period, and among the groups in the bone density of the digital radiograms (P<0.001). There was a tendency that bone density was increasing with time. 3. In light microscopic examination, new bone formation was more active in the autogenous bone added groups than toothash-plaster mixture groups at the early period after implantation but there is little difference at 20-week after implantation. 4. In fluorescent microscopic examination, the fluorescent band could be observed at the area of active bone formation and the band was more distinct in the autogenous bone added groups then toothash-plaster mixture groups. 5. In transmitted electron microscopic examination, organelles such as rER, Golgi complex and secretory granule and osteoblast were observed. In summary higher volume ratio of autogenous bone is needed to improve the bone healing in that there is little difference between toothash-plaster mixture group and autogenous bone added group at the 20-week after implantation in spite of new bone formation was more active in the autogenous bone added groups than toothash-plaster mixture groups at the early period after operation.

• 한방재활의학과학회지
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• 제30권4호
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• pp.155-164
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• 2020

Objectives This study is aimed to evaluate the feasibility of further clinical research of warm needle acupuncture as an effective and safe treatment for chronic low back pain. Methods Thirty participants will be randomly assigned to the Warm needle acupuncture group (n=15) and Dry needle acupuncture group (n=15). All patients will receive acupuncture therapy twice a week for 6 weeks, but only the experimental group will receive thermal stimulation. The primary outcome will be measured using the visual analogue scale for bothersomeness of low back pain, and the secondary outcome will be measured using the VAS for pain intensity, Oswestry disability index, 36-Item Short Form Health Survey, Beck's depression inventory, and amount of analgesics used. Conclusions The results of this study will be used to determine the feasibility of a future large-scale randomized controlled trial that provides clinical evidence for the efficacy and safety of warm needle acupuncture in the treatment of patients with chronic low back pain.

• Journal of Periodontal and Implant Science
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• 제36권1호
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• pp.1-14
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• 2006

The purpose of the present study was to evaluate the histologic results of bone cavities that were surgically created in the calvaria of rabbit and filled with $HA/{\beta}-TCP$ composite powders, which had been developed in Korea (Dentium, Korea). Ten young adult rabbits were used. Four defects were surgically produced in calvaria of each rabbit. Each rabbit was anesthetized with Ketamine-HCI (5 mg/kg, Yuhan Cor. Korea) and Xylazine-HCI (1.5 ml/kg, Yuhan Cor. Korea)). An incision was made to the bony cranium and the periosteum was reflected. Using a trephine bur (external diameter: 8 mm, 3i, USA), 4 'through-and-through' bone defects were created with copious irrigation, and classified into 4 groups: control group: no graft materials, experimental group I: normal saline + graft materials: experimental group II: venous blood + graft materials: experimental group III: graft materials only. The defects were randomly filled with graft materials. The defects were closed with resorbable suture material. At the end of the surgical procedure, all animals received a single intramuscular injection of antibiotics Gentamicin (0.1 mg/kg, Dae Sung Microb. Korea). Rabbits were sacrificed with phentobarbital (100 mg/kg) intravenously at 1-, 2-, 4-, 6- and 8-week after. Specimens were treated with hydrochloric acid decalcifying solution (Fisher Scientific, Tustin, CA) and sectioned by bisecting the 8 mm diameter defects. The histologic specimens were prepared in the general method with H & E staining at 6 ${\mu}m$ in thickness. The results were as follows; 1. New bone formation showed from after 2-week of surgery in defect area. As time lapsed, lots of new bone formation and mature bones showed. 2. Histologically, degree of new bone formation could not be discerned among the experimental groups. But, for experimental group II, lots of cells gathered around graft materials after 1-week of surgery, new bone formed slightly faster and than the others at 1-week after. For experimental group I, a few inflammatory finding showed around graft material at after 1-week and after 2-week of surgery. 3. No bone formation did show for control group. Based on histologic results, the new $HA/{\beta}-TCP$ composite powders appeared to act as a scaffolding material for regeneration of osseous defects.

• 대한소아치과학회지
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• 제27권4호
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• pp.517-523
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• 2000

비인강폐쇄는 연구개, 인두측벽 그리고 인두후벽간의 움직임이 서로 조화되어 구강과 비강을 나누어주는 괄약근 기전으로서 연하, 호흡 및 발음 등의 생리적 기능에 중요한 역할을 한다. 이 기능에 문제가 생긴 경우를 비인강폐쇄부전이라하며 그 원인으로는 (1) 연구개의 길이 및 움직임이상, (2) 비인두강의 해부학적 공간문제, (3) 인두후벽과 측벽의 기능이상 등이 있다. 본 연구는 구개열 환자의 측면두부방사선 사진을 통해 비인두강을 해부학적으로 분석하고 동시에 산출된 각 모음의 과비음 정도를 평가하여 비인강폐쇄부전과의 연관성을 비교해 본 것이며, 얻어진 결과는 다음과 같다. 1. 연구개 길이는 정상인에 비해 현저히 짧았다. 2. adequate ratio는 정상인에 비해 작게 나타났다. 3. adequate ratio가 감소함에 따라 모음 조음시 anatomic mVPI가 점차 증가하였다. 4. 각 모음 조음시 anatomic VPI는 과비음정도와 비례관계를 보였다. 5. 고모음(/u/, /i/)의 과비음정도가 저모음(/a/)에 비하여 크게 나타났다. 결론적으로, 구개열환자에서 측면두부방사선 사진은 비인강폐쇄부전의 진단 및 평가에 유용하게 사용될 수 있으며, 비인두강의 해부학적 구조는 산출되는 과비음정도와 밀접한 연관성이 있었다.

• 대한소아치과학회지
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• 제33권1호
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• pp.99-102
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• 2006

과잉치란 치배 형성기 이상으로 유치열기와 영구치열기에 정상보다 많이 발생하게 된 치아를 말한다. 유치 과잉치의 빈도는 $0.03{\sim}1.9%$로 상악 유측절치 부위에 호발하고 대부분은 정상 치아 형태로 맹출하며 정상 시기에 탈락하므로 보호자들이 인식하지 못하는 경우가 많다. 과잉치의 발생에 대해서는 현재 치판의 과활성으로 인해 제 3의 치배가 발생한다는 가설이 널리 받아들여지고 있고 유치 과잉치가 발생할 경우 영구치열기에는 정상 또는 비정상적인 형태의 계승 과잉치가 존재한다고 보고된 바 있다. 유치 과잉치의 약 75%는 정상적으로 맹출하고 탈락하기 때문에 특별한 처치는 필요하지 않지만 계승 영구치 맹출에 영향을 주는지를 관찰하기 위하여 정기적인 구강 및 방사선학적 검사가 필요하다. 본 두 증례의 경우 정상 치아 형태의 유치 과잉치가 유전치부 발육 공간을 이용하여 상악 유측절치 부위에 맹출하였고 방사선 사진 검사 결과 유치 과잉치 하방에 매복된 계승 과잉치가 관찰되었으므로 이에 보고하는 바이다.

• 대한소아치과학회지
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• 제29권3호
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• pp.413-417
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• 2002

점액종은 외상으로 인해 구강에서 발생하는 흔한 낭성 병변이다. 하순에 흔히 발생하며 구강저와 순측 점막에도 자주 형성된다. 상순이나 경구개, 후구치대에는 거의 발생하지 않으며 발생빈도에 있어 성차는 없다. 점액종의 일반적인 치료는 낭종을 외과적으로 제거하고 이와 관련된 소타액선을 제거하거나 개창술을 시행하지만 재발할 수 있다. 본 증례는 하순의 물집을 주소로 본 치과 병원에 내원한 환아를 봉합사를 이용한 비외과적 술식으로 치료 후 6개월 동안 재발하지 않은 경우로 환아의 나이가 어리고 행동조절에 문제가 있는 경우 점액종을 비외과적인 방법으로 제거하여 양호한 결과를 얻었기에 보고하는 바이다.

• 대한소아치과학회지
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• 제29권3호
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• pp.450-454
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• 2002

연구개 및 구인두부의 열창은 아동들에게 상대적으로 흔한 편이다. 연구개 열창은 신생아부터 노년층까지 모든 연령에 걸쳐 보고된 바 있지만, 어린 아동들 특히 걸음마를 막 시작한 아동들에게서 많이 보고되었다. 이러한 아동들의 경우 입안에 물체를 물고 돌아다니다가 넘어지거나 떨어져서 구인두부 열창을 입게되는 경우가 많은 편이고, 주로 4세 정도에 호발하며, 여아보다는 남아에서 더 이러한 외상이 자주 나타나는 것으로 보고되었다. 주로 손상을 입는 연구개 및 구인두 부위는 좌측 편도 상단부위이며, 관통상없이 선상이나 표면상의 손상으로 주로 발생하고, 손상 형태는 U자 형태 혹은 V자 형태로 나타난다. 이러한 외상에 있어 관통상이나, 크게 조직편이 이개된 경우를 제외하고는 봉합술은 필요하지 않으며, 오히려 이러한 봉합술이 외상부위의 치유를 지연시킬 수 있다. 본 창상의 치유에는 3주정도 소요되며 상흔은 거의 남지 않는 것으로 보고되었다. 그러나 연구개의 창상이 경동맥의 손상을 야기하여 신경학적인 합병증이 발생했다는 보고가 있으므로, 2-3일간은 외상을 입은 환아에 대한 주기적인 관찰이 필요하며, 합병증 발생시 구강외과의 및 이비인후과의 또는 신경외과의와의 협의진료가 필요하다. 본 증례는 2세 및 3세 남환아로 입안에 이물질을 물고 넘어져 연구개의 열창을 입은 경우로 비외과적인 처치 및 신경학적인 평가 후 완치되어 이에 보고하는 바이다.

• 보건교육건강증진학회지
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• 제20권1호
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• pp.41-60
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• 2003

This study, performed to analyze the factors associated with health and cancer screening using preventive programs form health insurance among the women of a community, through a survey of about 923 women in Euijungbu-city. The subjects of the study were selected by a proportional cluster sampling method. The self-reported questionnaire was intended to fine factors associated with health screening and cancer screening. The results of this study were as follows: 1. In the case of health screening using health insurance, 14.1% of the subjects turned out to have been screened once or more in their respective life-time. Reasons given for non-participation in the screening were : 'lacking screening information', a belief that' it's not useful' and a belief that they' weren't sick'. 2. The factors associated with health screening behavior were age, educational level, number of doctor visits, BMI and health promotion behavior(p<0.01, p<0.05). Also, the factors associated with health screening behavior were cue to action and health status, and the predictors on health screening behavior were age and health promotion behavior(p<0.01, p<0.05). 3. In the case of cancer screening through the health insurance, 7.4% of the subjects turned out to have been screened once or more respectively in their life-times. Reasons given for non-participation in the screening were : 'lacking screening information', a belief they 'weren't sick' and that it's not useful'. 4. The factors associated with cancer screening behavior were age, educational level, income, alcholol intake, exercise, number of doctor visits and BMI(p<0.01, p<0.05). Aditional factors associated with cancer screening behavior were cue to action, health belief score and health status. Predictors for cancer screening behavior were: age, health belief score, screening attitude and health status(p<0.01, p<0.05). As indicated by the above results, a lack of information was an important factor for a lack of participation in screening. Age and cue to action were also important factors in promoting the cancer screening rate. Therefore, a dissemination of information about cancer screening contributes to the promotion of a screening rate, and cooperation between health insurance and local health cancer facilitates to be public the community-based cancer screening program.

• 대한의료기공학회지
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• 제18권1호
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• pp.1-26
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• 2018

The objective of this study is to verify the effects of Moosim-Gi-Gong Doinbeop on low back pain targeting low back pain patients hospitalized in Korean medicine hospitals. For the study, 44 adult female and male patients hospitalized with low back pain at M Korean Medicine Hospital and H Korean Medicine Hospital located in Gimpo, Gyeonggi Province were recruited. The subjects had a temperature difference between left and right 湧泉(KI1) of over 0.5℃ through infrared thermographic imaging, and 23 of them were classified in the control group for retrospective analysis based on the test records. Infrared thermographic imaging, X-ray pelvic AP view - standing position, a sit-and-reach test and a VAS survey were employed for detection, and IBM SPSS Statistics 24 for the statistical process. The results were rounded down to three decimal places as in an average±standard deviation, and the significance level was 0.05 to be evaluated significant if p<0.05. The result of the study is as follows: 1. In the comparison between before and after conducting Moosim-Gi-Gong Doinbeop, the meaningful difference was shown in the experimental group in all indicators. But Indicators except for the temperature difference between right and left 湧泉(KI1)(difference between before and after) and In displaced pelvic correction indicators on the X-ray showed a significant difference in the control group. 2. As for the variation widths of the experimental group and the control group, the former showed significant temperature differences between 印堂(EX-HN3) and 關元(CV4) and right and left 湧泉(KI1); difference variations of anteflexion; and changes in PI and In displacement on the X-ray. 3. As for changes in the experimental group according to demographic characteristics, gender, age and degree of obesity did not show significant differences in all indicators. However, those who experienced back pain for more than six months in the experimental group showed the biggest body temperature differences between 印堂(EX-HN3) and 關元(CV4), while other indicators had no significant difference. As a result, patients who received Korean medicine treatment showed relieved back pain and improvement in pelvic correction and sports activity; however, those who got Moosim-Gi-Gong Doinbeop together showed more clearer improvement effects in pelvic correction and sports activity.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2017년도 춘계학술대회
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• pp.523-526
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• 2017

최근 3차원 가상현실에서의 몰입도를 높이기 위해 실감 음향 분야의 연구가 활발히 진행되고 있다. 일반적으로 현재의 가상현실에서 적용되는 실감 음향 생성 장치는 음원의 방위각과 위상에 대한 고려는 적용되어 있지만, 음향이 청자에게 다가오고 멀어질 때 발생하는 도플러 효과를 충분히 반영하고 있는 기술이 부족한 현실이다. 따라서 본 논문에서는 가상현실에서의 몰입감을 향상하기 위하여 입체음향 채널의 공간 회전축 스피커를 통해 도플러 효과가 더해진 3차원 입체 증감 음향을 제공하는 방법을 제안한다. 이를 위해 가상의 3차원 공간상에 위치하는 음원을 사용자가 있는 실제 공간에 대응시키고, 가상 음원의 위치에 따라 각각의 공간 회전축 스피커가 출력하는 출력량, 위상차 그리고 회전 각도를 조절해 3차원 실감 음향을 제공한다. 공간 회전축 스피커가 회전하면서 발생하는 회전음원의 자연적인 도플러 효과와 출력 음원의 주파수 변조를 통한 인위적인 도플러 효과가 더해져 청자에게 음원의 원근감을 더욱 사실적으로 느낄 수 있는 입체 증감 음향의 효과를 제공하게 된다.