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Lab talk, the good, the bad, and the ugly
Dental-CAD
e.max Press - printed wax questions...
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<blockquote data-quote="Edward123" data-source="post: 153733" data-attributes="member: 11727"><p>I agree with you on fit but this is how I see it...</p><p></p><p><u><em>"more expansion means the cast or the pressed object will be bigger in size,</em></u></p><p><u><em>bigger in size means loose crown or tighter post or inlay."</em></u></p><p></p><p>Theoretically speaking, If the investment expands, it will expand in all directions therefore creating a thinner object in all directions. Thus the interior of a crown will be larger giving to more internal space rendering a looser fit but the the exterior will be smaller, which is of little consequence. </p><p></p><p>But if that were true, wouldn't it make sense that an inlay would also have a looser fit due to the additional expansion pressing inwards and making it smaller?</p><p></p><p>I am guessing you may agree?</p></blockquote><p></p>
[QUOTE="Edward123, post: 153733, member: 11727"] I agree with you on fit but this is how I see it... [U][I]"more expansion means the cast or the pressed object will be bigger in size, bigger in size means loose crown or tighter post or inlay."[/I][/U] Theoretically speaking, If the investment expands, it will expand in all directions therefore creating a thinner object in all directions. Thus the interior of a crown will be larger giving to more internal space rendering a looser fit but the the exterior will be smaller, which is of little consequence. But if that were true, wouldn't it make sense that an inlay would also have a looser fit due to the additional expansion pressing inwards and making it smaller? I am guessing you may agree? [/QUOTE]
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Lab talk, the good, the bad, and the ugly
Dental-CAD
e.max Press - printed wax questions...
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