Kim Yookyung, Lee Chan-Young, Kim Euiseong, Roh Byoung-Duck
Department of Conservative Dentistry, Yonsei University College of Dentistry, Seoul, Korea.
Restor Dent Endod. 2012 Nov;37(4):228-31. doi: 10.5395/rde.2012.37.4.228. Epub 2012 Nov 21.
Invasive cervical resorption is a relatively uncommon form of external root resorption. It is characterized by invasion of cervical region of the root by fibrovascular tissue derived from the periodontal ligament. This case presents an invasive cervical resorption occurring in maxillary lateral incisor, following damage in cervical cementum from avulsion and intracoronal bleaching procedure. Flap reflection, debridement and restoration with glass ionomer cement were performed in an attempt to repair the defect. But after 2 mon, more resorption extended apically. Considering root stability and recurrence potential, we decided to extract the tooth. Invasive cervical resorption in advanced stages may present great challenges for clinicians. Therefore, prevention and early detection must be stressed when dealing with patients presenting history of potential predisposing factors.
侵袭性颈部吸收是一种相对不常见的牙根外部吸收形式。其特征是源自牙周膜的纤维血管组织侵入牙根颈部区域。该病例显示上颌侧切牙发生侵袭性颈部吸收，起因于牙脱位导致颈部牙骨质损伤以及冠内漂白操作。进行了瓣翻起、清创并用玻璃离子水门汀修复，试图修复缺损。但2个月后，更多吸收向根尖方向扩展。考虑到牙根稳定性和复发可能性，我们决定拔除患牙。晚期侵袭性颈部吸收可能给临床医生带来巨大挑战。因此，在处理有潜在易感因素病史的患者时，必须强调预防和早期检测。
