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Lab talk, the good, the bad, and the ugly
Metal
NP alloy recomendations?
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<blockquote data-quote="charles007" data-source="post: 17719" data-attributes="member: 9"><p>NO PROBLEM AT ALL WITH THE 61.</p><p>I was using Noritake with the 61 and added vm 13......the cte is on the high side with the 61, so I slow cool for 1 min....No checking at all.....I would ideally prefer an alloy closer to 14.2.........and ideally prefer less silver....With over 2 years using Vita vm13, and many years with 900, yet to see any problems.....</p><p>With vita, as best as I can remember, anything over 14.4 you need to slow cool.... "Norbert at Argen told me years ago that 61 is ok for Vita." </p><p>I will say I try my best to design an ideal framework, be it singles or bridges....</p><p>Never waxed badly designed mini pontics with tons of porcelain. But hey I'm not perfect, many times I do under wax.</p><p>Always use a non-greening liquid for powder opaques and porcelain with the 61.....and its ok with the paste opaque..........</p><p>Feel free to call or PM if I can help.</p><p></p><p>Charles</p></blockquote><p></p>
[QUOTE="charles007, post: 17719, member: 9"] NO PROBLEM AT ALL WITH THE 61. I was using Noritake with the 61 and added vm 13......the cte is on the high side with the 61, so I slow cool for 1 min....No checking at all.....I would ideally prefer an alloy closer to 14.2.........and ideally prefer less silver....With over 2 years using Vita vm13, and many years with 900, yet to see any problems..... With vita, as best as I can remember, anything over 14.4 you need to slow cool.... "Norbert at Argen told me years ago that 61 is ok for Vita." I will say I try my best to design an ideal framework, be it singles or bridges.... Never waxed badly designed mini pontics with tons of porcelain. But hey I'm not perfect, many times I do under wax. Always use a non-greening liquid for powder opaques and porcelain with the 61.....and its ok with the paste opaque.......... Feel free to call or PM if I can help. Charles [/QUOTE]
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Lab talk, the good, the bad, and the ugly
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NP alloy recomendations?
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