现代医学认为,慢性牙周脓肿,重度牙周病和残冠、残根,是导致肾炎甚至慢性肾功能衰竭(肾衰)的病灶牙。所以,拔除病灶牙是防治肾炎及肾衰的一项有力措施。但是,长期以来,医学界又认为,已患肾衰病人不能拔牙。肾衰被作为拔牙手术的禁忌症。近年来,肾衰患者通过透析,肾衰的系列症状得到不同程度的控制和改善,其口腔疾病 Modern medicine believes that chronic periodontal abscess, severe periodontal disease and residual crown, root, is the cause of nephritis and even chronic renal failure (renal failure) lesions teeth. Therefore, the removal of the lesion tooth is a powerful measure to prevent nephritis and renal failure. However, for a long time, the medical profession also believes that patients who have suffered from renal failure can not tooth extraction. Renal failure is a contraindication to tooth extraction surgery. In recent years, patients with renal failure through dialysis, renal failure, a series of symptoms to varying degrees of control and improvement of their oral diseases