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Lab talk, the good, the bad, and the ugly
Misc
Stone/Water Ratio: How important is it?
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<blockquote data-quote="BruceQuality" data-source="post: 18838" data-attributes="member: 618"><p>In your experience, how important have you found the stone to water ratio to be for the fit of crowns?</p><p></p><p>We pour two models for every case, a working model for the master die and a second pour "solid" model to check contacts.</p><p></p><p>I've found inconsistencies with the models such as contact areas and/or margins being more easily scraped on the master model to "solid" models being so deformed that they are unusable.</p><p></p><p>Our model department does not weigh/measure stone/water when pouring...</p><p></p><p>So I am now questioning if these inconsistencies could be because of inconsistent stone/water mix?</p><p></p><p>Thank you!</p></blockquote><p></p>
[QUOTE="BruceQuality, post: 18838, member: 618"] In your experience, how important have you found the stone to water ratio to be for the fit of crowns? We pour two models for every case, a working model for the master die and a second pour "solid" model to check contacts. I've found inconsistencies with the models such as contact areas and/or margins being more easily scraped on the master model to "solid" models being so deformed that they are unusable. Our model department does not weigh/measure stone/water when pouring... So I am now questioning if these inconsistencies could be because of inconsistent stone/water mix? Thank you! [/QUOTE]
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Lab talk, the good, the bad, and the ugly
Misc
Stone/Water Ratio: How important is it?
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