• Title/Summary/Keyword: 과학교실

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기술교실

  • Korean Federation of Science and Technology Societies
    • The Science & Technology
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    • v.12 no.10 s.125
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    • pp.49-51
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    • 1979
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기술교실

  • Korean Federation of Science and Technology Societies
    • The Science & Technology
    • /
    • v.12 no.8 s.123
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    • pp.54-56
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    • 1979
  • PDF

기술교실

  • Korean Federation of Science and Technology Societies
    • The Science & Technology
    • /
    • v.12 no.9 s.124
    • /
    • pp.56-57
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    • 1979
  • PDF

기술교실

  • Korean Federation of Science and Technology Societies
    • The Science & Technology
    • /
    • v.13 no.2 s.129
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    • pp.55-57
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    • 1980
  • PDF

기술교실

  • Korean Federation of Science and Technology Societies
    • The Science & Technology
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    • v.13 no.3 s.130
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    • pp.52-54
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    • 1980
  • PDF

Regeneration of total tissue using alveolar ridge augmentation with soft tissue substitute on periodontally compromised extraction sites: case report (치주질환 원인의 심한 골소실을 동반한 발치와에 대한 치조제 증강술과 연조직 대체제를 이용한 조직 재생 효과: 증례보고)

  • Yerim Oh;Jae-Kwan Lee;Heung-Sik Um;Beom-Seok Chang;Jong-bin Lee
    • Journal of Dental Rehabilitation and Applied Science
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    • v.39 no.4
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    • pp.276-284
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    • 2023
  • After tooth extraction, alveolar bone is resorbed over time. Loss of alveolar bone and reduction of upper soft tissue poses difficulties in future implant placement and long-term survival of the implant. This case report focuses on increasing the soft and hard tissues at the implant placement site by using alveolar ridge augmentation and a xenogeneic collagen matrix as a soft tissue substitute in an extraction socket affected by periodontal disease. In each case, the width of the alveolar bone increased to 6 mm, 8 mm, and 4 mm, and regeneration of the interdental papilla around the implant was shown, as well as buccal keratinized gingiva of 4 mm, 6 mm, and 4 mm, respectively. Enlarged alveolar bone facilitates implant surgery, and interdental papillae and keratinized gingiva enable aesthetic prosthesis. This study performed alveolar ridge augmentation on patients with extraction sockets affected by periodontal disease and additionally used soft tissue substitutes to provide a better environment for implant placement and have positive effects for aesthetic and predictive implant surgery.

Clinical Significance of Antibodies Against Platelet HLA Class I in Children with Idiopathic Thrombocytopenic Purpura (소아 특발성 혈소판 감소증에서 항-HLA Class I항체의 임상적 의미)

  • Lee, Hong Jun;Yeom, Jung-Sook;Park, Ji Sook;Park, Eun Sil;Seo, Ji-Hyun;Lim, Jae Young;Park, Chan-Hoo;Woo, Hyang-Ok;Youn, Hee-Shang
    • The Korean Journal of Blood Transfusion
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    • v.24 no.3
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    • pp.233-240
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    • 2013
  • Background: A previous history of transfusion has been known to be associated with production of anti-HLA class I antibodies. However, platelet glycoproteins are the main target of idiopathic thrombocytopenic purpura (ITP). The mechanism of antibody production is known to differ significantly between glycoproteins and anti-HLA class I. The aim of this study was to evaluate the clinical significance of anti-HLA class I antibodies in childhood ITP. Methods: Enrollment for the normal control group targeted 48 people who visited Gyeongsang National University Hospital from 1990 to 2010, and 48 young children with ITP. Anti-glycoproteins and anti-HLA class I antibodies were tested using the Modified Antigen Capture Enzyme-linked immunosorbent assay (MACE) kit. Results: The positive rate of anti-HLA antibodies was significantly different [36/39 (92.3%) vs 29/46 (63%)] [ITP group vs normal control group] (P=0.002). The mean positive S/C ratio of anti-HLA antibodies was also significantly different (3.55 vs 1.51) [ITP group vs normal control group] (P=0.0000). The positive rate of anti-HLA did not differ significantly between the transfused group and the non-transfused group [12/12 (100%) vs 24/27 (88%)] [transfused ITP vs non-transfused ITP]. The mean positive S/C ratio of anti-HLA antibodies did not differ significantly between the transfused ITP group and the non-transfused ITP group (4.30 vs 3.25) [transfused ITP vs non-transfused ITP]. Consecutive testing showed that positive rate and positive S/C ratio of anti-HLA antibodies did not change significantly between sampling times in both groups [transfused ITP vs non-transfused ITP] (P=1.00 and P=0.15). Conclusion: Anti-HLA class I antibodies may be involved in childhood ITP. Transfusion did not affect the course of childhood ITP.

Herbal Medicine for the Treatment of Rosacea: A Systematic Review and Meta-analysis of Randomized Controlled Trials (주사(Rosacea)의 한약 치료에 대한 체계적 문헌고찰 및 메타분석)

  • Kang, Eun-Jeong;Kam, Eun-Young;Kim, Seo-Hee;Yoon, Seok-Yeong;Jeon, Seok-Hee;Choi, Jung-Wha;Kim, Jong-Han;Park, Soo-Yeon;Jung, Min-Yeong
    • The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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    • v.34 no.3
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    • pp.27-54
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    • 2021
  • Objectives : This review was conducted to validate the effectiveness and safety of herbal medicine combined with conventional therapy for rosacea. Methods : Randomized controlled trials(RCTs) reporting the effects of herbal medicine treatment on rosacea were searched through eight electronic databases from 2016 to March 17, 2020. This study collection and data extraction were performed by two independent reviews. The Cochrane risk-of-bias tool was used for the evaluation of the risk of bias in all included RCTs. Mean differences(MD) and Risk ratio(RR) of 95% Confidence intervals(Cls) were calculated and data synthesis was conducted using Review Manager(RevMan, ver.5.4) Results : Eighteen RCTs were included and all trials compared the combined therapy of herbal medicine with conventional western therapy to conventional therapy alone. The effective rate of the combination of herbal medicine with western medicine(RR 1.20, 95% CI : 1.13-1.28, p<0.00001, I2=0%), the effective rate of the combination of herbal medicine with laser-based therapy(RR 1.12, 95% CI : 1.04-1.21, p=0.004, I2=18%) and the effective rate of the combination treatment group using herbal medicine, western medicine and external drugs were all statistically higher that of the control group(RR 1.19, 95% CI : 1.11-1.28, p<0.00001, I2=0%). The score of non transient erythema(MD -0.36, 95% CI : -1.01 0.29, p=0.27, I2=93%), flushing(MD -0.69, 95% CI : -0.97, 0.41, p<0.00001, I2=32%), papules or pustules(MD 0.10, 95% CI : -0.15, 0.35 p=0.44, I2=0%) were also seen in the herbal medicine and western medicine combination group. The overall risk of bias of the included studies was some concerns. No serious adverse effects were observed. Conclusions : This review found the safety and effectiveness of the combined therapy of herbal medicine with conventional western therapy for rosacea.

Obesity Prevalence in Pediatric Headaches (소아청소년 두통 환자에서 비만 유병률)

  • Han, A-Luem;Shin, Chan Ok;Cho, Kyoung Soon;Bin, Joong Hyun;Jung, Min Ho;Suh, Byung-Kyu
    • Journal of the Korean Child Neurology Society
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    • v.26 no.4
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    • pp.263-268
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    • 2018
  • Purpose: Obesity and headache are two highly prevalent diseases both in childhood and adolescent. In this study, we assessed the prevalence of obesity in pediatric headaches patients in a single institution in Korea, and differences according to age, sex, headache type, frequency, intensity, and disability. Methods: We retrospectively reviewed the medical records of 340 subjects (6-18 years of age) who visited the Pediatric Headache Clinic of Bucheon St. Mary's Hospital during the period from January 2015 through March 2018. Data on age, sex, height and weight, as well as headache type, frequency, intensity and disability, were collected. Body Mass Index (BMI) percentile was calculated based on the 2017 Korean Children Adolescence Growth Chart. Results: 17.6% of the pediatric headache patients were obese. The prevalence of obesity in male patients was higher than females (Male 23.8% VS Female 11.6%, P=0.002). There were no significant differences in obesity rate according to age, headache type, frequency, intensity, and disability. Conclusion: The prevalence of obesity in the pediatric headache population was 17.6% which is higher than 10.1% in general population (Korea National Health and Nutrition Examination Survey, KNHANES, 2013).