Shirako Takahiro, Churei Hiroshi, Iwasaki Naohiko, Takahashi Hidekazu, Ueno Toshiaki
Department of Sports Medicine/Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan.
Department of Oral Biomaterials Development Engineering, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan.
J Dent Sci. 2017 Sep;12(3):308-310. doi: 10.1016/j.jds.2017.02.003. Epub 2017 Apr 1.
The present study evaluated the flexural properties of a new temporary splint material, G-Fix, for use in dental trauma splints in comparison with other resin materials. Four types of resin materials were considered in the present study: MI Flow II, light-cured composite resin (MI); G-Fix, light-cured resin for splinting teeth (GF); Super-Bond C&B, adhesive resin cement (SB); and Unifast III, self-cured methyl-methacrylate resin (UF). The flexural properties of these four materials were tested according to ISO 4049. The flexural strength significantly increased in the order of UF (64.9 MPa) < SB (76.5 MPa) < GF (94.3 MPa) < MI (161.2 MPa). The elastic modulus significantly increased in the order of UF (2.11 GPa) ≒ SB (2.23 GPa) < GF (2.62 GPa) < MI (7.39 GPa). A splint made of GF may be more flexible than a composite splint, which is categorized as a rigid splint.
本研究评估了一种新型临时夹板材料G-Fix用于牙外伤夹板时与其他树脂材料相比的弯曲性能。本研究考虑了四种树脂材料：MI Flow II，光固化复合树脂（MI）；G-Fix，用于固定牙齿的光固化树脂（GF）；Super-Bond C&B，粘结树脂水门汀（SB）；以及Unifast III，自固化甲基丙烯酸甲酯树脂（UF）。根据ISO 4049测试了这四种材料的弯曲性能。弯曲强度按UF（64.9MPa）<SB（76.5MPa）<GF（94.3MPa）<MI（161.2MPa）的顺序显著增加。弹性模量按UF（2.11GPa）≈SB（2.23GPa）<GF（2.62GPa）<MI（7.39GPa）的顺序显著增加。由GF制成的夹板可能比归类为刚性夹板的复合夹板更具柔韧性。
