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Lab talk, the good, the bad, and the ugly
All Porcelain-Press
Waxing over metal coping
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<blockquote data-quote="SiKBOY" data-source="post: 258028" data-attributes="member: 1362"><p>I used to dip in the hottie and when I did, I would sit the dies on the metal edge of the hottie to warm them up before dipping. If you don't you will find the wax will pull/shrink from the margin. Not only that. It will also pull up from the occlusal surface. You thin out the wax to minimal casting thickness, cast it, fit it, then grind down to 0.2-0.3mm go and check the bite and swear that you had more occlusal room when you first started to wax... There is probably 0.3mm of "die spacer" between the metal and prep because of the wax shrinkage.</p></blockquote><p></p>
[QUOTE="SiKBOY, post: 258028, member: 1362"] I used to dip in the hottie and when I did, I would sit the dies on the metal edge of the hottie to warm them up before dipping. If you don't you will find the wax will pull/shrink from the margin. Not only that. It will also pull up from the occlusal surface. You thin out the wax to minimal casting thickness, cast it, fit it, then grind down to 0.2-0.3mm go and check the bite and swear that you had more occlusal room when you first started to wax... There is probably 0.3mm of "die spacer" between the metal and prep because of the wax shrinkage. [/QUOTE]
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Lab talk, the good, the bad, and the ugly
All Porcelain-Press
Waxing over metal coping
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