经过干髓术治疗后的牙齿,由于根髓未完全失活,干髓剂的作用也未能使其完全固定,有的病例在治疗后数周甚至数年后又出现疼痛,这是由于未失活的根髓有感染性炎症所引起,称为残髓炎。同样,根管治疗、牙髓塑化治疗时,若残留少量根髓或遗漏个别根管未加 After dry pulp surgery after the tooth, because the root marrow is not completely inactivated, the role of dry pulp also failed to make it completely fixed, and some cases in the treatment of weeks or even years after the onset of pain, which is due to not Inactive root pulp caused by infectious inflammation, called the medullary inflammation. Similarly, root canal therapy, dental pulp plasticization treatment, if a small amount of residual root marrow or omission of individual root canal without