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Lab talk, the good, the bad, and the ugly
All Porcelain-Press
Intaglio surface of E.max
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<blockquote data-quote="TheLabGuy" data-source="post: 25072" data-attributes="member: 126"><p>Alright, this is what my Ivoclar sales weasel (really a good guy) but that's my nomenclature for such a career path <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /> </p><p></p><p>-He states that NO sandblasting should occur after the reaction layer has been removed.</p><p>-Etching with HF for 20 secs is the only recommended protocol with E.MAX (Empress Esthetic is different)</p><p>-When asked, what if some glaze gets on the intaglio surface. A light sandblast 20-30 p.s.i. in that specific area is not going to be an issue.</p><p>-When asked, so it's okay to sandblast the crown to remove the reaction layer but not before it's sent out, it's not like you're reaching the press temps again, so what gives, why the hoopla about sandblasting....the answer, is because sandblasting can change the crystalline structure between the lithium disilicates and too much sandblasting can change this. </p><p>-What if your Dentist uses some type of acid to etch already (i.e. Apex interface). The answer is our acid is almost always stronger and their (phosphoric, nitrate) acid is more for killing the debris from trying it in than etching the lithium disilicate. </p><p></p><p>If anyone else has anything else, please feel free to chime in.......</p></blockquote><p></p>
[QUOTE="TheLabGuy, post: 25072, member: 126"] Alright, this is what my Ivoclar sales weasel (really a good guy) but that's my nomenclature for such a career path :) -He states that NO sandblasting should occur after the reaction layer has been removed. -Etching with HF for 20 secs is the only recommended protocol with E.MAX (Empress Esthetic is different) -When asked, what if some glaze gets on the intaglio surface. A light sandblast 20-30 p.s.i. in that specific area is not going to be an issue. -When asked, so it's okay to sandblast the crown to remove the reaction layer but not before it's sent out, it's not like you're reaching the press temps again, so what gives, why the hoopla about sandblasting....the answer, is because sandblasting can change the crystalline structure between the lithium disilicates and too much sandblasting can change this. -What if your Dentist uses some type of acid to etch already (i.e. Apex interface). The answer is our acid is almost always stronger and their (phosphoric, nitrate) acid is more for killing the debris from trying it in than etching the lithium disilicate. If anyone else has anything else, please feel free to chime in....... [/QUOTE]
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Lab talk, the good, the bad, and the ugly
All Porcelain-Press
Intaglio surface of E.max
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