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Lab talk, the good, the bad, and the ugly
Porcelain
S.O.S - Cheap zirconia ceramic block from China
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<blockquote data-quote="Gita" data-source="post: 57292" data-attributes="member: 5966"><p>We had used China Zr block before but we stop using it.. But we are using the 98mm round block... Reason of stop using:</p><p>1. Not very fit after sintering, esp for long span bridge (we do lotss of long span bridge). Of course u can do the grind etc, but i think it takes too much time... so if u count on labour cost it will be not very profitable... </p><p>2. Mostly China blocks are high opacity, which dentist here hate so much...</p><p>3. If u buy in bulk quantity, i think VITA had good price only a bit more expensive than China, but so much better fit, we rarely grind or do any seating at all, even at long span bridge..</p><p>4. I had 1 case single crown that breaks in 1 month. Well... only 1 case out of so many case we had done with China Zr, but it makes me doubt the quality...</p></blockquote><p></p>
[QUOTE="Gita, post: 57292, member: 5966"] We had used China Zr block before but we stop using it.. But we are using the 98mm round block... Reason of stop using: 1. Not very fit after sintering, esp for long span bridge (we do lotss of long span bridge). Of course u can do the grind etc, but i think it takes too much time... so if u count on labour cost it will be not very profitable... 2. Mostly China blocks are high opacity, which dentist here hate so much... 3. If u buy in bulk quantity, i think VITA had good price only a bit more expensive than China, but so much better fit, we rarely grind or do any seating at all, even at long span bridge.. 4. I had 1 case single crown that breaks in 1 month. Well... only 1 case out of so many case we had done with China Zr, but it makes me doubt the quality... [/QUOTE]
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Lab talk, the good, the bad, and the ugly
Porcelain
S.O.S - Cheap zirconia ceramic block from China
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