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What would cause this?
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<blockquote data-quote="Patrick Coon" data-source="post: 228239" data-attributes="member: 11366"><p><strong></strong></p><p><strong></strong></p><p><strong></strong></p><p>HI EdwardS!</p><p></p><p>There is definitely a distortion, but where it is coming from is hard to say. Several possibilities are: distorted impression, improper water/powder ration in stone cast, improper water/powder ratio in stone base, high expansion stone in base, severely perio involved teeth, poor temporization on preps.</p><p></p><p>To rule out several things at once I would pour a solid model from each impression using the same mix of stone. This could give you some insight as to whether it is the impression or the stone work.</p></blockquote><p></p>
[QUOTE="Patrick Coon, post: 228239, member: 11366"] [B] [/B] HI EdwardS! There is definitely a distortion, but where it is coming from is hard to say. Several possibilities are: distorted impression, improper water/powder ration in stone cast, improper water/powder ratio in stone base, high expansion stone in base, severely perio involved teeth, poor temporization on preps. To rule out several things at once I would pour a solid model from each impression using the same mix of stone. This could give you some insight as to whether it is the impression or the stone work. [/QUOTE]
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