Dumfahrt H, Moschèn I
Clinical Department of Prosthetic Dentistry, University of Innsbruck, School of Medicine, Austria.
J Periodontol. 1998 Aug;69(8):941-7. doi: 10.1902/jop.1998.69.8.941.
This case report describes the treatment of an external root resorption with extensive loss of tooth structure and bone at the labial surface of an upper left central incisor. The area of bone loss and root resorption was surgically exposed and an impression was taken using curing silicone. An individual ceramic insert was fabricated, allowing endodontic retreatment through an artificial root canal. The insert was incorporated using a dentin bonding system and a dual curing luting composite. Following endodontic retreatment and internal bleaching, a ceramic veneer was bonded to the tooth to obtain good esthetics and to improve stability. Twenty months after surgical treatment no further root resorption could be detected radiographically. A shallow residual pocket but no bleeding on probing was found.
本病例报告描述了对上颌左中切牙唇面牙体结构和骨组织广泛丧失的牙根外吸收的治疗。手术暴露骨丧失和牙根吸收区域，并用固化硅橡胶制取印模。制作了一个个性化陶瓷嵌体，以便通过人工根管进行根管再治疗。使用牙本质粘结系统和双固化粘结性复合树脂将嵌体就位。根管再治疗和内漂白后，粘结陶瓷贴面以获得良好的美观效果并提高稳定性。手术治疗20个月后，影像学检查未发现进一步的牙根吸收。发现有一个浅的残余袋，但探诊无出血。
