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Lab talk, the good, the bad, and the ugly
Zirconium
Long Span Implant Retained Bridges - Problem With Breaking
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<blockquote data-quote="Ryan" data-source="post: 256839" data-attributes="member: 6673"><p>Do you know what temp your sintering oven opens at? I find sometimes sintering ovens open up at too high of a temp with these type of restorations. The mass of zirconia is not cool enough when the door opens which can cause cracking.</p><p></p><p>Also, your heat and cool rate for applying porcelain should be around 20 - 30 degrees per minute depending on the volume of material. </p><p></p><p>I hope this helps</p></blockquote><p></p>
[QUOTE="Ryan, post: 256839, member: 6673"] Do you know what temp your sintering oven opens at? I find sometimes sintering ovens open up at too high of a temp with these type of restorations. The mass of zirconia is not cool enough when the door opens which can cause cracking. Also, your heat and cool rate for applying porcelain should be around 20 - 30 degrees per minute depending on the volume of material. I hope this helps [/QUOTE]
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Lab talk, the good, the bad, and the ugly
Zirconium
Long Span Implant Retained Bridges - Problem With Breaking
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