目前主张以根管治疗替代对有较大病灶的慢性根尖周炎的根尖切除术。由于根管治疗要求严格的根管扩大和严密的根尖封闭,所以疗程较长。作者根据计刺麻醉原理合并用磁石和经络通电疗法治疗慢性根尖周炎,疗效显著。治疗方法:患牙用橡皮布隔湿。扩大根管,形成窝洞,用次氯酸钠和双氧水冲洗根管,干燥之。将3300高斯的钴磁石包入软橡 Currently advocated the use of root canal therapy to replace the larger lesions of the apical periodontitis apical resection. As the root canal treatment requires strict root canal enlargement and tight apical seal, so a longer course of treatment. The author based on the principle of acupuncture combined with magnetism and meridian electrotherapy in the treatment of chronic apical periodontitis, a significant effect. Treatment: Dental wet blanket with teeth. Expand the root canal, the formation of cavities, with sodium hypochlorite and hydrogen peroxide root canal, dry it. The 3300 Gauss cobalt magnet encased soft rubber