Effect of anhydrous calcium sulfate whisker on the mechanical function of soft denture liners

doi:10.3969/j.issn.2095-4344.2015.47.014

Abstract

Abstract:

BACKGROUND: Due to limitations of the physicochemical properties of soft denture liner material itself, whisker has been added in the soft lining material in recent years, so as to enhance its mechanical properties.

OBJECTIVE: To investigate the effect of different additive amount of anhydrous calcium sulfate whisker on the mechanical function of self-curing soft denture liner.

METHODS: There were six groups in this experiment. Anhydrous calcium sulfate whisker at the mass fraction of 0 (control), 1%, 2%, 3%, 4%, 5% was respectively added into self-curing soft liner materials, 10 test specimens in each group, a total of 60 test specimens. The shear bond strength, Shore hardness and tensile strength were detected.

RESULTS AND CONCLUSION: With the increasing amount of the anhydrous calcium sulfate whisker, the Shore hardness of the soft lining material was increased continuously, and the tensile strength was increased firstly and then reduced. When 3% anhydrous calcium sulfate whisker was added, the bond strength and tensile strength of soft lining material reached the peak. Taken together, the mechanical properties of the soft lining materials became perfect when 3% anhydrous calcium sulfate whisker was added. These results demonstrate that anhydrous calcium sulfate whisker may affect the mechanical properties of self-curing soft liner.
中国组织工程研究杂志出版内容重点：生物材料；骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性；组织工程

Key words: Calcium Sulfate, Methylmethacrylates, Denture Rebasing, Tissue Engineering

Gao Shi-jun, Ren Guo-xin, Wei Si-yi, Chu Ming-hui, Wang Dong-xia, Hou Yu-ze, Xiao Yuan-yuan, Huang Yan-jun, Jiang Jia-zhen. Effect of anhydrous calcium sulfate whisker on the mechanical function of soft denture liners[J]. Chinese Journal of Tissue Engineering Research, 2015, 19(47): 7624-7628.

Figures/Tables 1

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