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Lab talk, the good, the bad, and the ugly
Porcelain
noritake group
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<blockquote data-quote="RDA" data-source="post: 140189" data-attributes="member: 6261"><p>Penceram Noble's CTE(14.6) is on the upper edge for Noritake(13.4 - 14.5) <a href="http://www.kuraraynoritake.com/products/dental-porcelain-and-laboratory-related-materials/ex-3/" target="_blank">http://www.kuraraynoritake.com/products/dental-porcelain-and-laboratory-related-materials/ex-3/</a></p><p></p><p>Cervical or Incisal Horizontal Cracks in Pontics.</p><p>Cause (1)</p><p>The CTE of the metal is too high.</p><p>Solution / Answer (1)</p><p>If the CTE of the metal is outside the range of 13.4 - 14.5</p><p>*10-6 [°C]-1 on the 25 - 500°C scale you must change</p><p>metals. (For non-precious the range is reduced to 13.9 -</p><p>14.1*10-6 [°C]-1 on the 25-500°C scale).</p></blockquote><p></p>
[QUOTE="RDA, post: 140189, member: 6261"] Penceram Noble's CTE(14.6) is on the upper edge for Noritake(13.4 - 14.5) [url]http://www.kuraraynoritake.com/products/dental-porcelain-and-laboratory-related-materials/ex-3/[/url] Cervical or Incisal Horizontal Cracks in Pontics. Cause (1) The CTE of the metal is too high. Solution / Answer (1) If the CTE of the metal is outside the range of 13.4 - 14.5 *10-6 [°C]-1 on the 25 - 500°C scale you must change metals. (For non-precious the range is reduced to 13.9 - 14.1*10-6 [°C]-1 on the 25-500°C scale). [/QUOTE]
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Lab talk, the good, the bad, and the ugly
Porcelain
noritake group
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