Geneva School of Dentistry, Department of Cariology and Endodontology, Geneva, Switzerland.
Oper Dent. 2013 May-Jun;38(3):242-8. doi: 10.2341/12-139-TR. Epub 2012 Aug 23.
Coronal rehabilitation of endodontically treated posterior teeth is still a controversial issue. Although the use of classical crowns supported by radicular metal posts remains widespread in dentistry, their invasiveness has been largely criticized. New materials and therapeutic options based entirely on adhesion are available nowadays, from direct composite resins to indirect endocrowns. They allow for a more conservative, faster, and less expensive dental treatment. However, the absence of a metal or high-strength ceramic substructure as in full-crown restorations can expose this kind of restoration to a higher risk of irreversible fracture in case of crack propagation. The aim of this case report is to present a technique to reinforce the cavity of an endodontically treated tooth by incorporating a fiber-reinforced composite (FRC) layer into the resin coating of the tooth preparation, before the final impressions of the cavity. This technique allows the use of FRCs in combination with any kind of restorative material for an adhesive overlay/endocrown.
根管治疗后的后牙的牙冠修复仍然是一个有争议的问题。虽然在牙科中，根金属柱支持的经典牙冠仍然被广泛应用，但它们的侵袭性已受到广泛批评。如今，有许多新的材料和治疗选择，从直接复合树脂到间接牙内冠，完全基于粘固。这些方法允许更保守、更快和更经济的牙科治疗。然而，由于缺乏全冠修复中那样的金属或高强度陶瓷底层结构，如果裂纹扩展，这种修复体可能面临更高的不可逆断裂风险。本病例报告的目的是介绍一种技术，即在最终印模之前，将纤维增强复合材料（FRC）层纳入牙预备的树脂涂层中，以增强根管治疗后的牙齿的窝洞。这种技术允许将 FRC 与任何类型的修复材料结合使用，以进行粘固覆盖/牙内冠。
