Rossi-Fedele Giampiero, Figueiredo Jose A P, Abbott Paul V
Aust Endod J. 2010 Dec;36(3):122-9. doi: 10.1111/j.1747-4477.2009.00197.x.
Internal inflammatory resorption is an uncommon condition, which requires the presence of necrotic and infected pulp tissue within the coronal portion of the root canal system as well as inflamed pulp tissue apical to the resorptive defect. The defect usually appears as a bowl-shaped radiolucency within the tooth root. Most cases are asymptomatic and many cases are only seen once the entire pulp has necrosed and all of the root canal system is infected resulting in apical periodontitis. The two cases presented are unusual in that they both had two distinct areas of internal inflammatory resorption. It is hypothesised that the more coronal lesion occurred first and then it ceased to continue resorbing the root in that position as the 'necrotic, infected front' moved apically at which time a second resorptive defect developed. The management, using different approaches, of these two cases of 'double internal inflammatory resorption' is described.
内部炎性吸收是一种罕见的情况，它需要在根管系统冠部存在坏死和感染的牙髓组织，以及在吸收性缺损根尖处存在发炎的牙髓组织。该缺损通常表现为牙根内碗状的透射区。大多数病例无症状，许多病例只有在整个牙髓坏死且所有根管系统感染导致根尖周炎时才会被发现。所呈现的这两个病例不同寻常之处在于它们都有两个不同的内部炎性吸收区域。据推测，更靠近冠方的病变先出现，然后随着“坏死、感染前沿”向根尖移动，该部位的牙根停止继续吸收，此时出现第二个吸收性缺损。本文描述了采用不同方法对这两例“双重内部炎性吸收”病例的处理。
