Farik B, Munksgaard E C
Department of Paediatric Dentistry, School of Dentistry, University of Copenhagen, Denmark.
Eur J Oral Sci. 1999 Feb;107(1):70-3.
Bonding of a tooth fragment to the remaining tooth substance can restore crown fracture of an anterior tooth. In this study, sheep central incisors were used. The crowns were fractured transversely and the crown fragment was bonded to the remaining tooth structure. This technique involves acid etching, use of an experimental adhesive (Gluma+) and a BisGMA/TEGDMA resin. The mean fracture strength of the restored teeth was not significantly different from that of intact teeth when tested at a rather low crosshead speed (0.5 mm/min) but different and about 30% lower when tested at a higher crosshead speed (500 mm/min). In studies aiming to test resistance to forces which might cause trauma, it might be appropriate to use a high crosshead speed.
将牙齿碎片粘结到剩余牙体组织上可修复前牙的冠折。在本研究中，使用了绵羊的中切牙。将牙冠横向折断，然后将冠碎片粘结到剩余的牙齿结构上。该技术包括酸蚀、使用一种实验性粘结剂（Gluma+）和一种双甲基丙烯酸缩水甘油酯/三乙二醇二甲基丙烯酸酯树脂。当以相当低的十字头速度（0.5毫米/分钟）进行测试时，修复后牙齿的平均断裂强度与完整牙齿的平均断裂强度无显著差异，但当以较高的十字头速度（500毫米/分钟）进行测试时，两者不同且修复后牙齿的平均断裂强度低约30%。在旨在测试对可能导致创伤的力的抵抗力的研究中，使用较高的十字头速度可能是合适的。
