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材料和方法 1.本院药剂科配制的2％甲硝哒唑溶液。 2.武汉抗菌素厂生产的盐酸四环素结晶。 3.方法:按常规开髓、拔残髓、扩挫根管至近根尖部,尽量在一次内扩挫通畅,使药物可到达根管内及根尖周组织,用3双％氧水和生理盐水冲洗根管后,用棉捻吸干,将消毒棉捻浸透2％甲硝哒唑溶液,然后蘸少许四环素晶体置入根管内,表面视髓腔大小覆盖一小消毒棉球,用丁香油氧化锌粘固粉密封,如患者急性症状重[自觉症状重、局部牙龈有肿胀,叩痛明显,根管中渗出液多等]则开放用药一次,尽量减少开放用药次数。一般3日～5日复诊,除6
Materials and Methods 1. 2% metronidazole solution prepared in our pharmacy department. 2. Wuhan antibacterial plant production of tetracycline hydrochloride crystals. 3. Methods: According to the conventional open pulp, pull the residual pulp, root canal expansion to near the root tip, as soon as possible in a frustrated patency, the drug can reach the root canal and periapical tissue, with 3 pairs of oxygen water and After flushing the root canal with saline, the cotton twist twists and turns the sterilized cotton into a 2% solution of metronidazole, then dipped in a small amount of tetracycline crystal into the root canal. The surface of the canal is covered with a small sterile cotton ball Clove oil zinc oxide cement seal, such as patients with acute symptoms [severe symptoms, local gum swelling, percussion pain significantly, root canal exudate and more] is open medication once, to minimize the number of open medication. General 3 days to 5 days referral, in addition to 6