Campbell R L, Parks K W, Dodds R N
Department of Oral and Maxillofacial Surgery, Medical College of Virginia, Richmond.
Oral Surg Oral Med Oral Pathol. 1990 Mar;69(3):287-90. doi: 10.1016/0030-4220(90)90288-4.
Retrospective study was done on 118 patients who underwent nonsurgical endodontics and then surgical endodontics. Seventy-nine patients had pain before nonsurgical endodontics, and an additional 39 were pain free. After the open surgical procedure, six patients (5%) had continual pain and were considered failures. Three patients (2.5%) were thought to have had posttraumatic dysesthesia, and the other three (2.5%) were considered to have phantom tooth pain. Possible mechanisms for each chronic pain type are discussed.
对118例行非手术牙髓治疗然后行手术牙髓治疗的患者进行了回顾性研究。79例患者在非手术牙髓治疗前有疼痛，另外39例无疼痛。开放手术后，6例患者（5%）持续疼痛，被视为治疗失败。3例患者（2.5%）被认为患有创伤后感觉异常，另外3例（2.5%）被认为患有幻牙痛。讨论了每种慢性疼痛类型的可能机制。
