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8 Venners Over Discolored Teeth
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<blockquote data-quote="paulg100" data-source="post: 46844" data-attributes="member: 1643"><p>yes veneers NOT crown copings!</p><p></p><p>sorry if that wasn't clear.</p><p></p><p>"should always follow the manufactures recommendations and by not doing so risk failure. It may go out the door fine but having copings that thin can cause fatigue failures down the line, especially if cemented."</p><p></p><p>bond and occlusion are whats gonna cause a veneer to fail, not how thick or strong the material is.</p><p></p><p>unless you pile a disproportionate amount of ceramic on top, then the shrinkage is gonna cause stress on the frame. </p><p></p><p>Just keep with in the ratios and i don't see any relevance to the thickness.</p><p></p><p>100% success with my emax work that Ive done with my brother so far...ZERO failures. and thats allot of large multi unit makeover cases etc.</p><p></p><p>We've had some failures with other clients but preps have been suspect, occlusion has been suspect, and i have no idea what there bonding protocols are (and neither do they probably!)</p><p></p><p>"especially if cemented"</p><p>If the client wants to cement, tell them to use zirconia!</p><p></p><p>we know the strength of glass increases a huge amount when dentine bonded (LS2 is what..3.5x),anyone ignoring this is just corner cutting. Dont come and expect a free remake when i told you to dentine bond!</p></blockquote><p></p>
[QUOTE="paulg100, post: 46844, member: 1643"] yes veneers NOT crown copings! sorry if that wasn't clear. "should always follow the manufactures recommendations and by not doing so risk failure. It may go out the door fine but having copings that thin can cause fatigue failures down the line, especially if cemented." bond and occlusion are whats gonna cause a veneer to fail, not how thick or strong the material is. unless you pile a disproportionate amount of ceramic on top, then the shrinkage is gonna cause stress on the frame. Just keep with in the ratios and i don't see any relevance to the thickness. 100% success with my emax work that Ive done with my brother so far...ZERO failures. and thats allot of large multi unit makeover cases etc. We've had some failures with other clients but preps have been suspect, occlusion has been suspect, and i have no idea what there bonding protocols are (and neither do they probably!) "especially if cemented" If the client wants to cement, tell them to use zirconia! we know the strength of glass increases a huge amount when dentine bonded (LS2 is what..3.5x),anyone ignoring this is just corner cutting. Dont come and expect a free remake when i told you to dentine bond! [/QUOTE]
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8 Venners Over Discolored Teeth
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