Ludlow M O, Brenneise C V, Haft R T
Department of Endodontics, Creighton University, School of Dentistry, Omaha, NE 68178.
J Endod. 1994 Jan;20(1):48-50. doi: 10.1016/s0099-2399(06)80027-0.
A case is reported of a patient who requested treatment for chronic pain of 7 yr duration. After several unsuccessful endodontic procedures, a cotton pellet was discovered under the soft tissue near the apex of the left maxillary cuspid. It was theorized that the cotton was left under the tissue flap during a previous apicoectomy procedure. After the cotton was removed the patient subsequentially reported that the pain was relieved.
报告了一例患者，其因持续7年的慢性疼痛寻求治疗。在进行了几次失败的牙髓治疗手术后，在上颌左尖牙根尖附近的软组织下发现了一个棉球。据推测，棉球是在之前的根尖切除术过程中留在组织瓣下的。棉球取出后，患者随后报告疼痛缓解。
