THE USE OF CONTINUOUS FIBER REINFORCEMENT IN DENTISTRY
THE USE OF CONTINUOUS FIBER REINFORCEMENT IN DENTISTRY
复制标题
DOI：
10.1016/0109-5641(92)90083-o
复制
发表时间：
1992-05-01
期刊：
影响因子：
5
通讯作者：
BURSTONE, CJ
中科院分区：
文献类型：
--
作者：
GOLDBERG, AJ;BURSTONE, CJ
纤维增强复合材料 (FRC) 配方被开发用作各种牙科器具的结构组件，例如修复框架、固定器和夹板。用连续 S-2 玻璃纤维增强的聚（对苯二甲酸乙二醇酯）和聚（1,4-环己基二亚甲基对苯二甲酸酯二醇）被拉挤成具有小矩形横截面的连续长度。使用 SEM 和光学显微镜评估微观结构。测量了纤维含量和弯曲性能，并与其他作者之前的结果进行了比较。目前的 FRC 含有 43-45 体积％的纤维，这与所有早期牙科 FRC 研究人员报道的 5-15 体积％的纤维相比毫不逊色。目前的材料达到了理论预期模量的 65%，而早期报告中计算出的典型值为 40%。实验 FRC 的弯曲强度和模量分别约为 565 MPa 和 20 GPa。目前的FRC可以形成个性化的装置，并且自由光纤不需要由操作者操纵。改进的性能和操作性证明了将这些 FRC 作为结构牙科材料进行进一步研究的合理性。
Fiber-reinforced composite (FRC) formulations were developed to serve as structural components for various dental appliances such as prosthodontic frameworks, retainers and splints. Poly(ethylene terephthalate glycol) and poly(1,4-cyclohexylene dimethylene terephthalate glycol) reinforced with continuous S-2 glass fibers were pultruded into continuous lengths with small rectangular cross sections. The microstructure was evaluated with SEM and optical microscopy. Fiber content and flexure properties were measured and compared to previous results by other authors. The present FRC contained 43-45 volume % fiber, which compared favorably with the 5-15 volume % fiber reported by all earlier investigators of dental FRC. The present materials achieved 65% of the theoretically expected modulus, in contrast to the typical value of 40% calculated in the earlier reports. The flexural strength and modulus of the experimental FRC were approximately 565 MPa and 20 GPa, respectively. The present FRC can be formed into individualized devices, and free fibers need not be manipulated by the operator. The improved properties and handling justify further study of these FRC as structural dental materials.