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Linear setting expansion of three different types of dental stones Available in Iraqi market , a comparative study. | ||
| MUSTANSIRIA DENTAL JOURNAL | ||
| Article 1, Volume 3, Issue 1, 2006, Pages 103-106 | ||
| Authors | ||
| Dr.Ghassan A. Al-Taie B.D.S; ; Dr.Abdalbasit A. Fatihallah B.D.S; ; Dr. Widad A. Al-Nakkash B.D.S; | ||
| Abstract | ||
| Aims of the study: To identify the must appropriate type of dental stone produces with minimal setting expansion Materials and methods: Three typee of dental stone compared, two groups produced depending on the mixing ratio so that the setting expansion values obtained by the aids of extensometer then compare them statistically. Results and discussion: Comparing setting expansion within each group the lowest setting expansion found in Elite model stone while the highest value in Silky Rock model, in Q.D. dental stone While comparing the two groups with each other shows no considerable changes take place due to increase in the W/P ratio Conclusion: Increasing the W/P ratio to a considerable limit results in a minimal changes in the setting expansion for Silky Rock stone, while for Q.D. dental stone & Elite model the setting expansion decreased. Heat generated from the mixture didn't affected by the changes in W/P ratio. | ||
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