干髓术是用药物失活牙髓后,除去冠部牙髓,再用药物覆盖根髓创面,使根髓干化,并长期保持无菌状态,作为天然的根充材料隔离外界的刺激,根尖孔得以闭锁,根尖周组织得以维持正常功能,患牙得以保留。如仍按传统的治疗方式,在除去冠部牙髓时,需要把髓顶全部揭去,然后施以干髓术。这样势必破坏过多的牙体组织,使该牙的抗力形遭到破坏,抗力能力减弱,又要花费很多时间和精力,而且患者不易接受。为此,笔者经过几年临床经验,论证髓顶揭开的最佳程度,仅供参考。 1 操作方法:牙髓病多由深龋引起。其它如畸形中央尖牙折等,使髓腔暴露引起。开髓时,使用裂钻在龋 Dry pulp surgery is the use of drug inactivation of dental pulp, remove the crown pulp, and then cover the root canal wound medication, so that the root stems dry, and long-term to maintain a sterile state, as a natural root material isolation external stimuli, Apical foramen to be locked, periapical tissue to maintain normal function, teeth can be retained. If still according to the traditional treatment, in the removal of the crown pulp, the need to expose all the top of the pulp, and then applied dry pulp surgery. This is bound to undermine excessive tooth tissue, so that the resistance of tooth shape was destroyed, reduced resistance, but also spend a lot of time and effort, and the patient is not easy to accept. To this end, the author after several years of clinical experience, demonstrated the best to open the top of the pulp, for reference purposes only. 1 method of operation: endodontic mostly caused by deep caries. Other such as deformity central sharp tooth fold, so that caused by exposure to the medullary canal. Open the pulp, the use of split drill in the caries