The influence of storage duration on the setting time of type 1 alginate impression material

1st Physics and Technologies in Medicine and Dentistry Symposium

物理学;医药卫生

Rahmadina, A.^1 ; Triaminingsih, S.^1 ; Irawan, B.^1

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

关键词: Dental impression material;    Distilled water;    Impression materials;    Metal rings;    Second group;    Setting time;    Shelf life;    Storage condition;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/884/1/012096/pdf
DOI  :  10.1088/1742-6596/884/1/012096

学科分类：卫生学

来源: IOP

【 摘 要 】

Alginate is one of the most commonly used dental impression materials; however, its setting time is subject to change depending on storage conditions and duration. This creates problems because consumer carelessness can affect alginate shelf life and quality. In the present study, the setting times of two groups of type I alginate with different expiry dates was tested. The first group consisted of 11 alginate specimens that had not yet passed the expiry date, and the second group consisted of alginates that had passed the expiry date. The alginate powder was mixed with distilled water, poured into a metal ring, and tested with a polished rod of poly-methyl methacrylate. Statistical analysis showed a significant difference (p