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brad
Joined: 13 May 2005
Posts: 346
Location: Cincinnati, Ohio
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 Posted: Wed Nov 14, 2012 8:54 am Post subject: a few troubles lately |
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Hi all-
I have loved surpass for many years.
I have had 3 cases recently (last three months) where I have been doing some class 4 resins, and they have debonded within a day or two-- an adhesive failure, not cohesive.
I am always very careful to avoid anterior guidance on these restorations.
My technique has not changed--
prep, isoporpoyl, rinse, dry, surpass as directed.
the only addition i have made is using a little seam free on my instruments to help adapt the resin.
Would you consider phophoric etch (prior to and in addition to) surpass 1?
It's very frustrating. ALl the surpass composnents are new, not expired, all the composites (empress direct and filtek supreme) are moderately new as well.
any thoughts/help are much appreciated.
_________________
Bradley A Dorsch, DDS
Forest Hills Family Denitstry
1055 Nimitzview Dr
Cincinnati, OH 45244
513-231-5353
www.cincytoothdoc.com |
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priior
Joined: 10 Feb 2009
Posts: 345
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| Posted: Wed Nov 14, 2012 9:38 am Post subject: |
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could the silicone o-rings in your air water syringe starting to be old?
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Nareg Apelian DMD
Montreal, Qc, Canada |
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john kanca
Joined: 14 May 2005
Posts: 6346
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| Posted: Thu Nov 15, 2012 6:01 am Post subject: Re: a few troubles lately |
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| brad wrote: | Hi all-
I have loved surpass for many years.
I have had 3 cases recently (last three months) where I have been doing some class 4 resins, and they have debonded within a day or two-- an adhesive failure, not cohesive.
I am always very careful to avoid anterior guidance on these restorations.
My technique has not changed--
prep, isoporpoyl, rinse, dry, surpass as directed.
the only addition i have made is using a little seam free on my instruments to help adapt the resin.
Would you consider phophoric etch (prior to and in addition to) surpass 1?
It's very frustrating. ALl the surpass composnents are new, not expired, all the composites (empress direct and filtek supreme) are moderately new as well.
any thoughts/help are much appreciated. |
Check your air supply. Always do that first.
You have any pictures of these restorations? Are they small incisal edge restorations?
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"You need me on that wall."
"You don't have a town named after you" |
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Kro
Joined: 29 Oct 2012
Posts: 27
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| Posted: Thu Nov 15, 2012 9:47 am Post subject: |
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| priior wrote: | | could the silicone o-rings in your air water syringe starting to be old? |
Absolutely, one-button DСI syringe for air and sand blasting |
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