Tsue Fumitake, Takahashi Yutaka, Shimizu Hiroshi
Division of Removable Prosthodontics, Fukuoka Dental College, Fukuoka, Japan.
Acta Odontol Scand. 2007 Jun;65(3):141-8. doi: 10.1080/00016350601137236.
To evaluate the reinforcing effect of fiber-reinforced composite (FRC) on flexural strengths at the proportional limit (FS-PL) of a denture base resin.
Bar-shaped acrylic resin specimens and maxillary acrylic resin complete denture specimens were fabricated. The FS-PL of the reinforced bar-shaped specimens was tested. Novel FRC, FibreKor, Remanium, Palatal Bar Wire, and Clasp-Wire were used as reinforcing materials. Likewise, the compressive strength at the proportional limit (CS-PL) of the reinforced maxillary denture specimens was tested.
The FS-PL of the bar-shaped specimens reinforced with the FRCs was significantly higher than that of the unreinforced specimens. The FS-PL of the bar-shaped specimens reinforced with the 1.0-mm-thick FRC was similar to the FS-PL of specimens reinforced with Remanium or Palatal Bar Wire. The FS-PL of specimens reinforced with the 1.5-mm-thick FRC was significantly higher than with the metal-reinforcing materials. The reinforcing efficiency of the 1.0-mm-thick FRC was 1.78-1.79 and of the 1.5-mm-thick FRC 3.14-3.27. The reinforcing effect of the FRC on the CS-PL of the maxillary denture specimen was similar to the effect on the FS-PL of the bar-shaped specimens. The reinforcing efficiency was 1.40 for the 1.0-mm-thick FRC and 1.67 for the 1.5-mm-thick FRC.
The unidirectional glass-fiber-reinforced composite had a reinforcing effect on the flexural strength at the proportional limit of the denture base resin.
评估纤维增强复合材料（FRC）对义齿基托树脂比例极限下弯曲强度（FS-PL）的增强效果。
制作棒状丙烯酸树脂标本和上颌丙烯酸树脂全口义齿标本。测试增强棒状标本的FS-PL。新型FRC、FibreKor、Remanium、腭杆钢丝和卡环钢丝用作增强材料。同样，测试增强上颌义齿标本的比例极限下抗压强度（CS-PL）。
用FRC增强的棒状标本的FS-PL显著高于未增强标本。用1.0毫米厚FRC增强的棒状标本的FS-PL与用Remanium或腭杆钢丝增强的标本的FS-PL相似。用1.5毫米厚FRC增强的标本的FS-PL显著高于金属增强材料。1.0毫米厚FRC的增强效率为1.78 - 1.79，1.5毫米厚FRC的增强效率为3.14 - 3.27。FRC对上颌义齿标本CS-PL的增强效果与对棒状标本FS-PL的增强效果相似。1.0毫米厚FRC的增强效率为1.40，1.5毫米厚FRC的增强效率为1.67。
单向玻璃纤维增强复合材料对义齿基托树脂比例极限下的弯曲强度有增强作用。
