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Does everyone trim back their zirconia margins manually?
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<blockquote data-quote="sirmorty" data-source="post: 336388" data-attributes="member: 1022"><p>Lots of reasons for trimming back.</p><p>Usually has to do with design settings and the milling tool life. Also milling strategy.</p><p></p><p>Milling Centers that have to deal with a quick turn around so their margin settings are usually thicker. Then you need to trim back.</p><p></p><p>You can always adjust them in the green state so you wouldn't haven't as much when it's sintered and hard. That can be risky because it's pretty delicate in the green state and can chip very easily.</p><p></p><p>Then of course comes the tool life. If it's near the end of its life your going to get some chips.</p><p></p><p>I would say it's extremely common to adjust the margin with a rubber wheel. If you just accept what your mills spits out. I don't think you would be very happy. There is a reason why you need to do some contouring in the green state and after it's sintered.</p><p></p><p>You can definitely make a mistake trimming it back and perhaps over trim..so if your looking to pick a winner. They're both right.</p></blockquote><p></p>
[QUOTE="sirmorty, post: 336388, member: 1022"] Lots of reasons for trimming back. Usually has to do with design settings and the milling tool life. Also milling strategy. Milling Centers that have to deal with a quick turn around so their margin settings are usually thicker. Then you need to trim back. You can always adjust them in the green state so you wouldn't haven't as much when it's sintered and hard. That can be risky because it's pretty delicate in the green state and can chip very easily. Then of course comes the tool life. If it's near the end of its life your going to get some chips. I would say it's extremely common to adjust the margin with a rubber wheel. If you just accept what your mills spits out. I don't think you would be very happy. There is a reason why you need to do some contouring in the green state and after it's sintered. You can definitely make a mistake trimming it back and perhaps over trim..so if your looking to pick a winner. They're both right. [/QUOTE]
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Does everyone trim back their zirconia margins manually?
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