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Lab talk, the good, the bad, and the ugly
Zirconium
Death by Zr
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<blockquote data-quote="disturbed" data-source="post: 41541" data-attributes="member: 4763"><p>good old percision dental...mark, I LOVE monolithics! the ones that dont destroy natural dentition, namely E'max.. Yes, ceramco is bad as well for a lot of the same reasons as Zr, Wear. this is why I choose D'sign, a flouralapatite porc. NOT a feldspathic. It will NOT wear out the surrounding dentition, either will E'max, these are the ONLY two I know of that will not beat the crap out of the mouth, I have seen a 20 Y/O single central made out of feldspathic wear a grove in the lowers, destroying protrusive, which in turn put the potrusive forces on the posteriors, which in turn destroyed those. the really funny part is where you say the argument for wear has been put to sleep....It may keep getting hit on the head by crown and bridge salesmen such as yourself trying to ignore and it, but in higher circles, especially perio, it is and will remain forever a major concern. don cornell and bob winters did a lot of work to make sure d'sign is as close to natural dention as possible from wear to crystalain structure to mimic how light plays in it. got a thin crown that will break with a pressable or milled? don't switch to a destructive material, recommend a gold crown, do a reduction coping, or ask the doctor to re-prep. guys like mark are pushing this because they invested in it, that does not make it right or a quality material.My panties are in a wod ("crying about wear") because after 10 years of training I come out to see whats around me and I see people like mark ignoring simple material science because a salemen is taking him golfing...and than pushing this crap on others.should we just mill everything out of the hardest material we can find so it NEVER breaks? again.. put a rock in one hand and a piece of fruit in the other, rub them together for a while and let me know what happens..</p></blockquote><p></p>
[QUOTE="disturbed, post: 41541, member: 4763"] good old percision dental...mark, I LOVE monolithics! the ones that dont destroy natural dentition, namely E'max.. Yes, ceramco is bad as well for a lot of the same reasons as Zr, Wear. this is why I choose D'sign, a flouralapatite porc. NOT a feldspathic. It will NOT wear out the surrounding dentition, either will E'max, these are the ONLY two I know of that will not beat the crap out of the mouth, I have seen a 20 Y/O single central made out of feldspathic wear a grove in the lowers, destroying protrusive, which in turn put the potrusive forces on the posteriors, which in turn destroyed those. the really funny part is where you say the argument for wear has been put to sleep....It may keep getting hit on the head by crown and bridge salesmen such as yourself trying to ignore and it, but in higher circles, especially perio, it is and will remain forever a major concern. don cornell and bob winters did a lot of work to make sure d'sign is as close to natural dention as possible from wear to crystalain structure to mimic how light plays in it. got a thin crown that will break with a pressable or milled? don't switch to a destructive material, recommend a gold crown, do a reduction coping, or ask the doctor to re-prep. guys like mark are pushing this because they invested in it, that does not make it right or a quality material.My panties are in a wod ("crying about wear") because after 10 years of training I come out to see whats around me and I see people like mark ignoring simple material science because a salemen is taking him golfing...and than pushing this crap on others.should we just mill everything out of the hardest material we can find so it NEVER breaks? again.. put a rock in one hand and a piece of fruit in the other, rub them together for a while and let me know what happens.. [/QUOTE]
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Lab talk, the good, the bad, and the ugly
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Death by Zr
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