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Lab talk, the good, the bad, and the ugly
Dental-CAD
Porcelain facing zirconia
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<blockquote data-quote="npdynamite" data-source="post: 351824" data-attributes="member: 11802"><p>If I had it my way I would leave contacts to be stacked in porcelain and I would put my cutback line 1-2mm down the lingual and it wouldn't be a straight across line so that it doesn't reflect light poorly. I am not a ceramist buy my early training was that ceramics have an ideal thickness and being thinner or thicker can cause it to become weaker and my understanding was that porcelain is strongest in the 1-2mm range so that is what I would prefer to cut back. In my experience that would give the best structure for a highly esthetic and strong result.</p><p></p><p>That said everyone seems to want to do micro layering or no layering so I do what I have to. I always encourage people on single anterior that are going to be layered at all to have the contacts cut back so that light can pass through</p><p></p><p>*edit, so that light can pass through the porcelain and increase the chances of matching natural adjacent teeth</p></blockquote><p></p>
[QUOTE="npdynamite, post: 351824, member: 11802"] If I had it my way I would leave contacts to be stacked in porcelain and I would put my cutback line 1-2mm down the lingual and it wouldn't be a straight across line so that it doesn't reflect light poorly. I am not a ceramist buy my early training was that ceramics have an ideal thickness and being thinner or thicker can cause it to become weaker and my understanding was that porcelain is strongest in the 1-2mm range so that is what I would prefer to cut back. In my experience that would give the best structure for a highly esthetic and strong result. That said everyone seems to want to do micro layering or no layering so I do what I have to. I always encourage people on single anterior that are going to be layered at all to have the contacts cut back so that light can pass through *edit, so that light can pass through the porcelain and increase the chances of matching natural adjacent teeth [/QUOTE]
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Lab talk, the good, the bad, and the ugly
Dental-CAD
Porcelain facing zirconia
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