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Year : 2005  |  Volume : 5  |  Issue : 4  |  Page : 200-202

Efficacy of slurry water

Department of Prosthodontics K. L. E. S.ís Institute of Dental Sciences, Belgaum, Karnataka, India

Correspondence Address:
Bhakti Doshi
Department of Prosthodontics, Nehru Nagar, K.L.E.S.ís Institute of Dental Sciences, Belgaum, Karnataka
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0972-4052.21636

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Aims: 1) To study the effect of slurry water on surface of gypsum cast at different time intervals. 2) To study the effect of tap water on surface of gypsum cast at different time intervals. 3) To compare the effect the slurry and tap water on surface of gypsum cast at different time intervals. Methods and Materials: Seventy specimens of dental stone were prepared with central longitudinal groove and horizontal groove. Specimens were immersed up to central horizontal groove in tap water and slurry water for 15min, 30min, 60min, and 120min then specimens were removed and observed under stereomicroscope with respect to clarity of the groove. Results: 1) Significant difference was present between specimens of slurry water group and tap water group in relation to the time intervals. 2) Tap water group specimens get affected when immersed for 15min also however there were no change in slurry water group specimen kept for 30 min. 3) Along the loss of continuity of groove, there was color change and loss of surface roughness was present in specimens, which were immersed in tap water for 60 min and120min. Such changes were not observed in slurry water group specimens. Conclusion: Slurry water dissolves the surface of gypsum cast less than tap water so to maintain the accuracy of the cast and the indirectly the prosthesis, use of slurry water is must.

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