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Lab talk, the good, the bad, and the ugly
Dental-CAD
crown abutments not fit (3shape)
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<blockquote data-quote="Sevan P" data-source="post: 336793" data-attributes="member: 7766"><p>SO here are my setting for crown over Ti abutments. I also use SnowRock scan powder no more spray too unpredictable and can go on thick, with powder more control.</p><p></p><p>Cement Gap: 0.015</p><p>Extra Cement Gap: 0.050</p><p>Dist. to margin line 0.50</p><p>Smooth Dist. 0.20</p><p>Drill radius 0.550</p><p>Drill Comp 0.55</p><p>New Drill comp checked.</p><p></p><p>Sounds like your drill comp is not right. Doesn't matter Exocad or 3Shape if you don't have the right stuff on your screwed. lol</p><p></p><p>Drop fit on in fact sometime i run extra cement at 0.040 depending on whom mills the ti abutment for me, each company yields different results. I mill on VHF wieland Mills. </p><p></p><p>Few things to check make sure shrinkage factor on zr is entered right in the Cam software. Make sure your mill is calibrated, and double check your drill comp in design. Also Sharp corner are you enemy. When designing Ti abutment i always run a shoulder radius of 1.0 and top fillet of 0.60 no sharp edges nice fit. you can even run a 0.80 shoulder radius if you like. If you have pics of abutment designs please post so we can see what you're working with.</p><p></p><p>Also for better and faster support join the 3Shape Study Group on face book. You'll get better help there then on here. trust me. lol</p></blockquote><p></p>
[QUOTE="Sevan P, post: 336793, member: 7766"] SO here are my setting for crown over Ti abutments. I also use SnowRock scan powder no more spray too unpredictable and can go on thick, with powder more control. Cement Gap: 0.015 Extra Cement Gap: 0.050 Dist. to margin line 0.50 Smooth Dist. 0.20 Drill radius 0.550 Drill Comp 0.55 New Drill comp checked. Sounds like your drill comp is not right. Doesn't matter Exocad or 3Shape if you don't have the right stuff on your screwed. lol Drop fit on in fact sometime i run extra cement at 0.040 depending on whom mills the ti abutment for me, each company yields different results. I mill on VHF wieland Mills. Few things to check make sure shrinkage factor on zr is entered right in the Cam software. Make sure your mill is calibrated, and double check your drill comp in design. Also Sharp corner are you enemy. When designing Ti abutment i always run a shoulder radius of 1.0 and top fillet of 0.60 no sharp edges nice fit. you can even run a 0.80 shoulder radius if you like. If you have pics of abutment designs please post so we can see what you're working with. Also for better and faster support join the 3Shape Study Group on face book. You'll get better help there then on here. trust me. lol [/QUOTE]
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Lab talk, the good, the bad, and the ugly
Dental-CAD
crown abutments not fit (3shape)
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