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

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1 Citation (Scopus)

Abstract

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<0.05) between the setting times of the alginate that had not passed the expiry date (157 ± 3 seconds) and alginate that had passed the expiry date (144 ± 2 seconds). These findings indicate that storage duration can affect alginate setting time.

Original languageEnglish
Article number012096
JournalJournal of Physics: Conference Series
Volume884
Issue number1
DOIs
Publication statusPublished - 30 Aug 2017
Event1st Physics and Technologies in Medicine and Dentistry Symposium, PTMDS 2017 - Depok, West Java, Indonesia
Duration: 15 Jul 201716 Jul 2017

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