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根管治疗需要机械预备以清除根管内的腐败物质,也需要药物以固定根管、副根管及牙本质小管内残留的蛋白质分子的氨基酸,使它们不发生新陈代谢。根管内用药可以产生根尖周组织的刺激而影响治疗,因此,消毒根管应选择对根尖周组织刺激尽可能小的药物。作者选用12对成人(自愿者)健康的切牙,开髓后,一组以甲酚醛液(含15.2％甲醇,42.4％福尔马林,42.4％间甲酚)封二次(间隔三星期),一组以2％戊二醛液冲洗根管一次,其余治疗方法均相同。6至8周后
Root canal therapy requires mechanical preparation to remove the spoilage material in the root canal and drugs to fix the amino acid residues of the protein molecules in the root canal, accessory root canal, and dentinal tubules so that they are not metabolized. Root canal administration can produce periapical tissue stimulation and affect the treatment, therefore, disinfection of the root canal should choose to stimulate the periapical tissue as small as possible drugs. The authors selected healthy adult incisors from 12 pairs of adults (volunteers). After opening the pulp, a group of cresols (containing 15.2% methanol, 42.4% formalin, 42.4% m-cresol) ), A group with 2% glutaraldehyde irrigation root canal once, the rest of the treatment are the same. 6 to 8 weeks later