The Effect of Mixing Technique and Methods on Some Physical Properties of Dental Stone | ||
| Al-Rafidain Dental Journal | ||
| Article 24, Volume 13, Issue 1, January 2013, Pages 170-175 PDF (0 K) | ||
| Document Type: Research Paper | ||
| DOI: 10.33899/rden.2012.84766 | ||
| Author | ||
| Alaa N Al-Saraj | ||
| Prosthodontic Department, College of dentistry, Mosul university Prosthodontic Department, College of dentistry, Mosul university | ||
| Abstract | ||
| Aims: The study aims to evaluate the effect of mixing techniques and water powder ratio on the compres-sive strength and surface hardness of dental stone. Materials and Methods: The samples of compressive strength and surface hardness testes were prepared by 2 water powder ratio the ratio recommended by manufacture and that used by dentists and 2 mixing methods rubber bowl and spatula and zip-lock bag. The collected data analyzed using one sample t-test, ANOVA and Duncans' multiple range test at p≥0.5. Re-sults: The results showed statistically significant difference in compressive strength and surface hardness among tested groups. Conclusion: Mixing by rubber bowl and spatula and using water powder ratio rec-ommended by manufacturer gives the highest compressive strength value while using zip-lock bag give a higher surface hardness value than rubber bowl and spatula. | ||
| Keywords | ||
| dental stone; Mixing technique; water powder ratio; Surface Hardness; compressive strength | ||
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