论文部分内容阅读
作者等分析死髓牙根管内细菌的种类,发现根管内最多和最常见到的细菌是甲型链球菌和金黄色葡萄球菌。并对10种消毒根管的常用药物作了抑菌测验。10种药物是:蟻醛甲酚合剂,醋酸间甲酚酯,木餾油,盧戈氏碘液,酚,樟脑酚,薄荷酚,碘仿,次氯酸钠液和青霉素。抑菌测验是将从根管分离出之甲型链球菌和金黄色葡萄球菌的24小时肉汤培养液0.1毫升均匀塗于血清瓊脂平碟,置37℃恒温箱中半小时,后用直径0.9厘米干燥消毒圆滤纸,滴加药物0.05毫升,将滤纸放在血清瓊脂平碟中央,再置37℃恒温箱中培养24小时,此后观察抑菌圈大小观察方法是测量濾纸外圈边缘至抑菌圈边级。实验结果以蟻醛甲酚合剂的抑菌作用为最大(金黄色葡萄球菌抑菌2.0-3.5厘米,甲型链球菌抑菌2.4-3.5,两者混合2.2厘米),次之为
The authors analyzed the type of bacteria in the root canal of the dead root and found that the most and most commonly seen bacteria in the root canal were Streptococcus aureus and Staphylococcus aureus. Antibacterial tests were performed on 10 commonly used drugs for root canal disinfection. The 10 drugs are: formidol, cresol acetate, creosote, Lugol's iodine, phenol, camphor, menthol, iodoform, sodium hypochlorite and penicillin. Antibacterial test is isolated from the root canal of Streptococcus mutans and Staphylococcus aureus 24 hours broth 0.1 ml uniformly coated on agar flat dish, set at 37 ℃ incubator for half an hour, with a diameter of 0.9 Cm dry sterilization filter paper, add 0.05 ml of drug, the filter paper on the agar flat dish of serum, and then incubated at 37 ℃ incubator for 24 hours, then observe the size of the inhibition zone observation method is to measure the outer edge of the filter paper to the suppression Mycelium edge level. The results showed that the antiseptic effect of the mixture was the largest (0.2-3.5 cm for S. aureus and 2.4-3.5 for S. aureus), the second was mixed with 2.2 cm