Characteristics of denture thermoplastic resins for non-metal clasp dentures
Characteristics of denture thermoplastic resins for non-metal clasp dentures
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DOI：
10.4012/dmj.2009-114
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发表时间：
2010-07-01
影响因子：
2.5
通讯作者：
Takabayashi, Yota
中科院分区：
文献类型：
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作者：
Takabayashi, Yota
对6种热塑性树脂和常规的丙烯酸树脂进行了力学性能、物理性能、吸水率、溶解性、弯曲强度、弹性模量、拉伸强度和颜色稳定性的测试。非金属卡环义齿用热塑性树脂具有低吸水性和低溶解性，具有卫生优势。由于它们的弹性模数很低，而且易于操作，因此与丙烯酸树脂相比，这些材料可以使用更大的底切用于固色。与传统义齿基托树脂相比，并非所有测试的热塑性树脂在弯曲测试后都会断裂，当测试超过其比例限制时，基托树脂会断裂。研究还发现，聚酰胺树脂和聚对苯二甲酸乙二酯树脂可能会出现临床上明显的染色。
Six thermoplastic resins and conventional acrylic resin were examined to characterize their mechanical and physical properties, water sorption, solubility, flexural strength, modulus of elasticity, tensile strength and color stability. Thermoplastic resins for non-metal clasp dentures exhibiting low water sorption and solubility offer hygienic advantages. Since they have a low modulus of elasticity and are easily manipulated, these materials make it possible for larger undercuts to be used for retention compared to acrylic resin. Not all of the thermoplastic resins tested fractured after the bending test in contrast to the conventional denture base resin, which fractured when tested beyond its proportional limit. It was also found that clinically noticeable staining may occur on the polyamide resins and polyethylene terephtalate resins.