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Physical properties

 
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Triad



Joined: 22 Sep 2008
Posts: 15

PostPosted: Sat Mar 14, 2009 10:32 am    Post subject: Physical properties Reply with quote

John, can you compare the physical properties of titan and clearfil majesty flow. according to kurrary:

• Very high filler loading (81wt%) for exceptional strength and wear
resistance even for posterior restorations
• Lowest polymerization shrinkage of the current flowables

Are their claims true compared to titan? What is the filler load of titan? How do the polymerization shrinkages compare? If titan has superior physical properties, as I suspect, why do you not recommend that it be used as a universal composite as Kurrary does?

from their website:
Clinical Applications
• Intraoral repairs
• Posterior restorations including Class I’s, Class II’s and Class V’s
• Cavity liner and base for direct restorations, and indirect restorations using the IDS (Immediate
Dentin Sealing) technique; the IDS procedure refers to sealing dentin immediately after the
preparation and before the final impression
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john kanca



Joined: 14 May 2005
Posts: 6346

PostPosted: Sat Mar 14, 2009 3:04 pm    Post subject: Reply with quote

Titan has a loading of 68%. I find the claim of 81% loading questionable since loading that high and claiming polishability is somewhat incompatibile with an ability to flow. Shrinkage is irrelevant.
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jasonl



Joined: 25 Aug 2005
Posts: 272
Location: Florida

PostPosted: Mon Mar 16, 2009 6:19 am    Post subject: Reply with quote

john kanca wrote:
Titan has a loading of 68%. I find the claim of 81% loading questionable since loading that high and claiming polishability is somewhat incompatibile with an ability to flow. Shrinkage is irrelevant.


worth repeating. Very Happy
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twmdds



Joined: 16 May 2006
Posts: 142

PostPosted: Wed May 20, 2009 4:29 pm    Post subject: Reply with quote

I give up! Why is shrinkage irrelevant with flowables?
Tom Mitchell
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john kanca



Joined: 14 May 2005
Posts: 6346

PostPosted: Wed May 20, 2009 4:54 pm    Post subject: Reply with quote

It really isn't.
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twmdds



Joined: 16 May 2006
Posts: 142

PostPosted: Wed May 20, 2009 5:37 pm    Post subject: Reply with quote

OK??? Why do we cure flowables for so long? I'm curing the flowable layer for 30-40 secs, as I believe you've recommended.
Tom Mitchell
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john kanca



Joined: 14 May 2005
Posts: 6346

PostPosted: Wed May 20, 2009 8:21 pm    Post subject: Reply with quote

twmdds wrote:
OK??? Why do we cure flowables for so long? I'm curing the flowable layer for 30-40 secs, as I believe you've recommended.
Tom Mitchell


We have toned that down to ten seconds with a good light.

That's consequent to data I have obtained since the original work. The 30-40 seconds won't hurt you one bit, though.
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