Effect of shelf life on compressive strength of zinc phosphate cement

1st Physics and Technologies in Medicine and Dentistry Symposium

物理学;医药卫生

Dwiputri, D.R.^1 ; Damiyanti, M.^1 ; Eriwati, Y.K.^1

Department of Dental Materials, Faculty of Dentistry, Universitas Indonesia, Jakarta, Indonesia^1

关键词: Crosshead speed;    Group III;    Load cells;    Shelf life;    Universal testing machines;    Zinc phosphate cements;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/884/1/012099/pdf
DOI  :  10.1088/1742-6596/884/1/012099

学科分类：卫生学

来源: IOP

【 摘 要 】

Usage of zinc phosphate cements with no account of the shelf life left before the expiry date can affect its compressive strength. The aim of this study is to determine the different compressive strength values of zinc phosphate cement with different shelf lives before expiry. Three groups of zinc phosphate cement (GC Elite cement 100) with different expiry dates were tested for compressive strength using a universal testing machine (crosshead speed 1 mm/min: load cell of 250 kgF). The results showed that there was a significant difference (p