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Lab talk, the good, the bad, and the ugly
All Porcelain-Press
Lithium Disilicate
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<blockquote data-quote="AcademyDL" data-source="post: 7910" data-attributes="member: 673"><p>Ivoclar Zircad is 900MPA and Lava claims 1100MPA.</p><p>The Zirconia strength is supposedly dependent on the brand. Due to the</p><p>differences in the Therming process that the zirconia goes through </p><p>after it has been milled. 3M is claiming to have a superior therming method to other brands. All I know is that they spend a ton of Cash on Research and Development and 3M does indeed back up their 5 year warranty.</p><p></p><p>A Friend in the business who does a ton of zirconia told me that the other companies are terrible about backing up their warranties and literally has a coffee can full of broken substructures. The company always had an excuse why they didn't have to warranty any of them. Literally hundreds of them.</p><p></p><p> There is another lesser known brand in the Magazines claiming to be stronger. ( I cant remember the brand off the top of my head )</p><p>But I have never felt any of it was an issue past a certain point 900-1100 MPA is strong enough for me ( as far as substructures go )</p><p></p><p> </p><p> I have made this debate that you guys are talking about Relating to the hand stacked porcelain being the weakest link but I have had mixed success. Several Doctors are very concerned about breakage because of the years past and the claims of previous systems. Many of my clients had to remake several cases and in some cases had to remake every single unit.</p><p></p><p>I Can see that some of you are having success with your Doctors </p><p> and Id love to do more 400MPa press work. What are you sharing with them that helps make them comfortable with Lithium Disillicate?</p><p></p><p>I'm also very sincerely interested in your % success rate with the Lithium Disillicate. What are your Failure/Success Ratios? </p><p></p><p>- Justin</p></blockquote><p></p>
[QUOTE="AcademyDL, post: 7910, member: 673"] Ivoclar Zircad is 900MPA and Lava claims 1100MPA. The Zirconia strength is supposedly dependent on the brand. Due to the differences in the Therming process that the zirconia goes through after it has been milled. 3M is claiming to have a superior therming method to other brands. All I know is that they spend a ton of Cash on Research and Development and 3M does indeed back up their 5 year warranty. A Friend in the business who does a ton of zirconia told me that the other companies are terrible about backing up their warranties and literally has a coffee can full of broken substructures. The company always had an excuse why they didn't have to warranty any of them. Literally hundreds of them. There is another lesser known brand in the Magazines claiming to be stronger. ( I cant remember the brand off the top of my head ) But I have never felt any of it was an issue past a certain point 900-1100 MPA is strong enough for me ( as far as substructures go ) I have made this debate that you guys are talking about Relating to the hand stacked porcelain being the weakest link but I have had mixed success. Several Doctors are very concerned about breakage because of the years past and the claims of previous systems. Many of my clients had to remake several cases and in some cases had to remake every single unit. I Can see that some of you are having success with your Doctors and Id love to do more 400MPa press work. What are you sharing with them that helps make them comfortable with Lithium Disillicate? I'm also very sincerely interested in your % success rate with the Lithium Disillicate. What are your Failure/Success Ratios? - Justin [/QUOTE]
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Lab talk, the good, the bad, and the ugly
All Porcelain-Press
Lithium Disilicate
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