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首页> 外文期刊>Dental Materials Journal >Fracture behaviors of maxillary central incisors with flared root canals restored with CAD/CAM integrated glass fiber post-and-core
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Fracture behaviors of maxillary central incisors with flared root canals restored with CAD/CAM integrated glass fiber post-and-core

机译：CAD / CAM集成玻璃纤维桩核修复上扩中切牙上颌中切牙的骨折行为

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The objective was to evaluate the fracture resistance properties of maxillary incisors with flared canals restored with computer aided design and computer aided manufacture (CAD/CAM) integrated glass fiber post-and-core. Thirty prepared flared root canals were selected in vitro and restored with CAD/CAM integrated fiber post-and-core (Group A), prefabricated fiber posts (Group B), and cast gold alloy (Group C), respectively. After submitted to fatigue loading, each specimen was subjected to a static loading until fracture. Analysis of variance (ANOVA) tests were used to determine statistical differences. The mean fracture strengths of Groups A and C were significantly higher than those of Group B, whereas no differences were observed between Groups A and C. In addition, reparable fracture modes were mostly observed in Group A while irreparable and catastrophic fractures were mostly found in Groups B and C. These results demonstrate that, in comparison to traditional treatments, CAD/CAM integrated glass fiber post-and-core restoration significantly enhances the fracture resistance of flared root canals.
机译：目的是评估采用计算机辅助设计和计算机辅助制造（CAD / CAM）集成玻璃纤维桩核修复的扩口牙上颌切牙的抗断裂性能。在体外选择了三十根准备扩口的根管，并分别用CAD / CAM集成纤维桩和芯（A组），预制纤维桩（B组）和铸造金合金（C组）进行修复。在经受疲劳载荷之后，每个样本都经受静态载荷直到断裂。方差分析（ANOVA）检验用于确定统计差异。 A组和C组的平均断裂强度显着高于B组，而A组和C组之间没有发现差异。此外，A组中大多数观察到可修复的断裂模式，而A组和C组中则发现了无法修复的灾难性断裂。 B组和C组。这些结果表明，与传统治疗相比，CAD / CAM集成玻璃纤维桩核修复显着增强了扩张的根管的抗裂性。

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