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Effect of High Local Concentrations of Antibiotics on Early Bone Formation with Tooth Ash and Plaster of Paris in the Ovariectomized Rat

机译:局部高浓度抗生素对去卵巢大鼠牙骨粉和巴黎石膏早期骨形成的影响

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摘要

This studied determined the clinical effect of antibiotic use at the site of bone defect restoration in patients with osteoporosis, using tooth ash and plaster of Paris in ovariectomized rats. Forty-eight rats were assigned to four groups randomly and each group was further divided into 4 and 8 weeks after implantation. Histologic sections of the defects were obtained after surgery for histomorphometric analysis. Comparing each week, a significant difference was seen in bone formation by 4 weeks. Compared to controls, new bone formation increased significantly with tooth ash and saline, tooth ash and gentamicin, and tooth ash and gentamicin after ovariectomy. Tooth ash and saline resulted in the best bone formation. The degree of new bone formation was slightly lower when tooth ash and gentamicin were used compared to when tooth ash and saline were used. When tooth ash and gentamicin were compared according to ovariectomy, bone formation was significantly inhibited by ovariectomy at 4 weeks, while no significant difference was seen at 8 weeks.
机译:这项研究确定了使用骨灰和巴黎膏药对去卵巢大鼠进行骨质疏松症患者骨缺损修复部位使用抗生素的临床效果。将48只大鼠随机分为4组,每组在植入后进一步分为4和8周。手术后获取缺损的组织学切片以进行组织形态分析。每周比较,到4周骨形成的差异显着。与对照组相比,在卵巢切除术后,牙灰和盐水,牙灰和庆大霉素以及牙灰和庆大霉素的新骨形成显着增加。牙灰和生理盐水导致最佳的骨骼形成。与使用牙灰和盐水相比,使用牙灰和庆大霉素时新骨形成的程度略低。当根据卵巢切除术比较牙灰和庆大霉素时,在第4周时卵巢切除术可显着抑制骨形成,而在第8周时则无明显差异。

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