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干髓术是用失活剂失活牙髓,消除牙髓炎所产生的疼痛后除去冠髓,放干髓剂于已失活根髓的断面上,干髓剂中的主要成分多聚甲醛遇水或湿气时,放出甲醛,使根髓干尸化,保持无菌状态,成为无害物质保留于根管中,并防止感染扩散到根尖周组织,达到保留患牙的目的~([1])。一、病例资料患者,服刑犯人,男性,45岁,2014年6月因右上后牙疼痛在北京监狱管理局前进监狱医务所口腔科就诊。诉近两周以来,右上后牙冷热刺
Dry pulp surgery is the inactivation of the inactivated pulp, eliminating the pain caused by pulpitis after removal of the crown pulp, put the dried marrow in the section has been inactivated rhizome, the main component in the dry pulp paraformaldehyde In case of water or moisture, the release of formaldehyde, so that the autopsy of the medulla oblongata, to maintain a sterile state, as non-harmful substances retained in the root canal and prevent infection spread to the periapical tissue to achieve the purpose of retaining the teeth ~ ([ 1]). First, the patient data, serving prisoners, men, 45 years old, June 2014 due to the right upper back teeth pain in the Prison Administration of Beijing Prisons Clinic stomatology clinic. In the last two weeks, the right upper back and cold Tottenham