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Implants
Anyone casting to TI interface?
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<blockquote data-quote="2thm8kr" data-source="post: 178295" data-attributes="member: 1367"><p>Do you ever read the physical properties charts of any of your materials?</p><p>Do you know what the CTE is of the grade of titanium you are using?</p><p>Does it match your alloy?</p><p>Zero gave you a great explanation of what happens to the surface of titanium when brining it to burnout temperature.</p><p>Andrew gave a great example of how it could be affected in the patients mouth.</p><p>UCLA abutments do not have a titanium interface. The interface is gold and platinum alloy. Why is that you ask? Because platinum does not form an oxide layer at these temperatures and when you cast to it you get a chemical bond.</p><p>Of course the physical properties change any time you heat alloy, that is why the manufacturers add trace elements to the alloy. These burn out with each casting, hence adding new alloy to every casting. If you don't add alloy and keep casting the same button you will run into CTE problems.</p></blockquote><p></p>
[QUOTE="2thm8kr, post: 178295, member: 1367"] Do you ever read the physical properties charts of any of your materials? Do you know what the CTE is of the grade of titanium you are using? Does it match your alloy? Zero gave you a great explanation of what happens to the surface of titanium when brining it to burnout temperature. Andrew gave a great example of how it could be affected in the patients mouth. UCLA abutments do not have a titanium interface. The interface is gold and platinum alloy. Why is that you ask? Because platinum does not form an oxide layer at these temperatures and when you cast to it you get a chemical bond. Of course the physical properties change any time you heat alloy, that is why the manufacturers add trace elements to the alloy. These burn out with each casting, hence adding new alloy to every casting. If you don't add alloy and keep casting the same button you will run into CTE problems. [/QUOTE]
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Anyone casting to TI interface?
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