Viscosity and adhesion strength of cream-type denture adhesives and mouth moisturizers
Viscosity and adhesion strength of cream-type denture adhesives and mouth moisturizers
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DOI：
10.4012/dmj.2012-004
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发表时间：
2012-11-01
影响因子：
2.5
通讯作者：
Murata, Hiroshi
中科院分区：
文献类型：
--
作者：
Kano, Hiroshi;Kurogi, Tadafumi;Murata, Hiroshi
评价了4种乳膏型义齿粘结剂和2种口腔保湿剂在不同实验条件下与丙烯酸树脂的粘接强度和粘度。粘度由正弦波振动粘度计测定。在万能试验机上用2块树脂板进行粘接强度试验。在方法A中，测试了各种恒定厚度的材料层并测量了抗拉强度，而在方法B中，在测量之前施加了恒定载荷。每项测量都进行了五次测试。在方法A中，随着涂层变薄，结合强度呈指数增加。材料厚度(贡献率p=79.0%)的影响远大于材料类型(p=15.3%)。在方法A中，具有较高粘度的材料的粘接强度水平较高，而在方法B中，具有较高粘度的材料具有较低的粘接强度水平。在施加拉伸之前，粘接强度显著受实验条件的影响。
We evaluated adhesion strength to acrylic resins under various experimental conditions and viscosity of 4 cream-type denture adhesives and 2 mouth moisturizers. The viscosity was determined by a sine-wave vibro viscometer. The adhesion strength tests were performed with 2 resin plates at a universal tester. In Method A, various constant thicknesses of material layer were tested and tensile strength was measured, while in Method B a constant load was applied before measurement. Five tests were carried out for each measurement. With Method A, adhesion strength increased exponentially as the layer got thin. Effect of the material thicknesses (contribution ratio p=79.0%) was much larger than that of material type (p=15.3%). Materials with higher viscosity had greater levels of adhesion strength in Method A, whereas those with the higher viscosity had lower levels of adhesion strength in Method B. Adhesion strength was significantly affected by the experimental condition prior to applying tension.