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Lab talk, the good, the bad, and the ugly
Dental-CAM
AG Ceramill users unite!
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<blockquote data-quote="AnAppleaDay" data-source="post: 286230" data-attributes="member: 19639"><p>AG users, I need your help.</p><p>We are milling IPS e.max cad blocks in our Motion 2 (5 axis, but non-DNA),using the 12-position Ceramic block holder and Cerec adapters.</p><p>All components are genuine AG and the blocks are genuine Ivoclar blocks.</p><p></p><p>We scan on 3Shape D2000 and design using 3Shape 2017.3.</p><p></p><p>The issue we're having is the margins on the e.max crowns we mill are not very accurate, the crowns don't fit properly without modification and are often under-contoured.</p><p></p><p>The same file, milled in zirconia, comes out fine, but the e.max doesn't fit...</p><p>Any thoughts? </p><p></p><p></p><p>I am thinking either the CAM strategy for e.max is not as refined as the e.max one, or maybe there is vibration.</p><p>Often, we find the crown has fallen from the holder at the end when the sprue is being cut, so I know there is a level of imprecision involved.</p></blockquote><p></p>
[QUOTE="AnAppleaDay, post: 286230, member: 19639"] AG users, I need your help. We are milling IPS e.max cad blocks in our Motion 2 (5 axis, but non-DNA),using the 12-position Ceramic block holder and Cerec adapters. All components are genuine AG and the blocks are genuine Ivoclar blocks. We scan on 3Shape D2000 and design using 3Shape 2017.3. The issue we're having is the margins on the e.max crowns we mill are not very accurate, the crowns don't fit properly without modification and are often under-contoured. The same file, milled in zirconia, comes out fine, but the e.max doesn't fit... Any thoughts? I am thinking either the CAM strategy for e.max is not as refined as the e.max one, or maybe there is vibration. Often, we find the crown has fallen from the holder at the end when the sprue is being cut, so I know there is a level of imprecision involved. [/QUOTE]
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Lab talk, the good, the bad, and the ugly
Dental-CAM
AG Ceramill users unite!
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