Peutzfeldt A, Asmussen E
Department of Dental Materials, School of Dentistry, Faculty of Health Sciences, University of Copenhagen, Denmark.
J Dent Res. 1992 Aug;71(8):1522-4. doi: 10.1177/00220345920710081101.
The present study investigated whether propanol, a monofunctional aldehyde, was able to improve the mechanical properties of dental polymers. The underlying hypothesis was that a cross-linking reaction is possible between various functional groups of different polymers. Propanol was added to monomer mixtures, which were then made light-curing and loaded with filler. The monomer mixtures were varied with respect to monomer composition and content of aldehyde. Four mechanical properties of the experimental resin composites were determined. Addition of propanol gave rise to significant improvements in mechanical properties, which may be indicative of a cross-linking ability of monofunctional aldehydes. With the exception of modulus of elasticity, the mechanical properties of resin composites based on UEDMA/HEMA were superior to those of BISGMA/TEGDMA-based materials, even though the improvements in flexural strength and modulus of resilience were most pronounced for the BISGMA/TEGDMA-based resin composites.
本研究调查了单官能醛丙醇是否能够改善牙科聚合物的机械性能。潜在的假设是不同聚合物的各种官能团之间可能发生交联反应。将丙醇添加到单体混合物中，然后进行光固化并填充填料。单体混合物在单体组成和醛含量方面有所不同。测定了实验性树脂复合材料的四种机械性能。丙醇的添加使机械性能有显著改善，这可能表明单官能醛具有交联能力。除弹性模量外，基于UEDMA/HEMA的树脂复合材料的机械性能优于基于BISGMA/TEGDMA的材料，尽管基于BISGMA/TEGDMA的树脂复合材料在弯曲强度和回弹模量方面的改善最为明显。
