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상악동 거상술시 이용한 탈단백 생체 유래 골 이식재(OCS-B<SUP>®</SUP>)의 임상 및 조직학적 관찰
박준범(Jun-Beom Park),황유정(You-Jeong Hwang),설양조(Yang-Jo Seol),이용무(Yong-Moo Lee),김태일(Tae-Il Kim),구영(Young Ku),류인철(In-Chul Rhyu),한수부(Soo-Boo Han),이상철(Sang-Cheol Lee),박윤정(Yoon-Jeong Park),이상훈(Sang-Hoon Rhee) 대한치과의사협회 2007 대한치과의사협회지 Vol.45 No.8
Deproteinized bovine bone mineral has been widely used as graft material in sinus augmentation procedure. The effieacy of OCS-B(r)(Nibec Inc., Seoul, Korea) as a graft material for sinus augmentation was evaluated in 10 patients. A total of 13 sinus augmentation procedures were performed, and an average of 6.3 months later 27 implants were placed into the augmentation sinuses. The biopsy specimens were examined histologically and histomorphometrically. Radiographical evaluation was done also. The average distance from grafted sinus to implant apex at the final evaluation period was 5.7±3.1㎜. The average percentage of newly formed bone at an average of 6.3 months was 20.0±8.4%. The degree of bone to graft material contact was 18.7±6.4%. It was shown from both radiographic evaluation and histologic results that sinus augmentation can successfully be performed with OCS-B<SUP>®</SUP>.
Rats 를 이용한 Iso - butylalcohol 의 아만성 흡입독성 연구
한정희,이성배,이용묵,하창수,정재황,윤효인,정용현,김현영,장범수,임철홍,전윤석,장동혁,김종춘 한국산업위생학회 1999 한국산업보건학회지 Vol.9 No.2
The purpose of this study was to investigate the toxic effects of iso-butylalcohol on Sprague-Dawley (SD) rats which were treated 0, 333, 1,000 and 3,000 ppm for 6 hours a day, 5 days a week for 13 weeks by inhalation. Iso-butylalcohol did not induce any abnormal change in the viewpoint of clinical signs, feed consumption, ophthalmic test, urinalysis, hematology and blood biochemistry during and at the termination of the inhalation toxicity test. We did not find any abnormal findings in the gross and microscopic observations due to the inhalation of iso-butylalcohol. There was no alteration in relative organ weight owing to the inhalation of the iso-butylalcohol. In conclusion, concentration was 3,000 ppm in rats under the inhalation of 6 hours a day, 5 days a week for 13 weeks. Iso-butylalcohol did not show any change in the clinical signs, feed consumption, ophthalmic test, urinalysis, hematology and blood biochemistry, together with no alteration in the gross and pathological findings.
김현영,이성배,임철홍,이권섭,정용현,이종성,한정희,전윤석,황호순,이용묵 한국산업위생학회 2003 한국산업보건학회지 Vol.13 No.1
The CrO3 mostly used in plating. metal surface disposal, leather, cosmetic manufacturing, as an experiment material by repeatedly inhaling and exposure the male S.D. rats at a 0.00, 0.2., 0.50, 1.25 mg/㎡ concentration(particle size: 0.5-0.5 aerosol)6hours a day, 5day a week in 13weeks comparing with 2weeks, 8weeks of recovery group about the noxiousness of the experiment animal and the reduce scale of the CrO3 in the internal organ especially in blook and respiratory organ with the period of convalescent and clearance. The experiment results which we received are as follows. 1. In blood the RBC, HGB and HCT experiment, rats with 0.20, 0.50 mg/㎡ concentration showed that there were some decreases but not dependent. The kidneys absolute weight compared with control group was reduced intentionally(p〈0.05) and the lungs absolute weight compared with control group showed intentional increase(p〉0.05). 2. After the exposure of the experiment material, the whole blook, l\blood plasma and red blood cell in blood by (x): the period of convalescent, per (y); the decreasing of Cr concentration, was y=66.51 e -0.057x, y=67.2 e-0.101x, y=70.01 e-0.030 in 0.50 mg/㎡ exposure concentration by calculating the clearance coefficient of correlation, and the half life (day)was estimated 12.0, 6086, 23.0 each. 3, After the exposure of the experiment material, the experiment animals lung, liver and kidneys by(x); the period of convalescent, per (y); the decreasing of Cr conentration, was y=1808 e-0.00493x, y=12.02e-0.0297x, y=67.61 e-0.0292x in 0.50mg/㎡ exposure concentration by calculating the clearance coefficient of correlation, and the half life(day)was estimated 140.6, 23.3, 23.7, each, and including lung, liver with all of the experiment internal organs, the Cr clearance decreased as the exposure concentration increased.