Schulz Malte, Bosshardt Dieter, von Arx Thomas
Klinik für Oralchirurgie und Stomatologie, Zahnmedizinische Kliniken der Universität Bern.
Schweiz Monatsschr Zahnmed. 2009;119(10):991-1005.
Periapical surgery is required when periradicular pathosis associated with endodontically treated teeth cannot be resolved by nonsurgical root canal therapy (retreatment), or when retreatment was unsuccessful, not feasible or contraindicated. Endodontic failures can occur when irritants remain within the confines of the root canal, or when an extraradicular infection cannot be eradicated by orthograde root canal treatment. Foreign-body reponses towards filling materials, towards cholesterol crystals or radicular cysts might prevent complete periapical healing. Following enhanced microsurgical techniques in the last years the success rates of apical surgery have improved considerably. The aim of the current case report is to describe the therapeutical approach to a persistent periapical lesion and its histologic examination.
当与经牙髓治疗的牙齿相关的根尖周病变无法通过非手术根管治疗（再治疗）解决时，或者当再治疗不成功、不可行或禁忌时，需要进行根尖手术。当刺激物残留在根管内，或者当根管内感染无法通过顺行根管治疗根除时，可能会发生牙髓治疗失败。对充填材料、胆固醇晶体或根尖囊肿的异物反应可能会阻止根尖周完全愈合。随着近年来显微外科技术的进步，根尖手术的成功率有了显著提高。本病例报告的目的是描述对持续性根尖周病变的治疗方法及其组织学检查。
