Casting non precious on ucla abudment with precious base?

[Dimis]

A question again if you can help im using semi only because i cast nobel implants castable that has precious base. People told me that they use a non precious metal to cast and they dont have problems of merging the two metals. Do anybody know anything. I dont want to use semi precious any more and my doc likes nobel




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[CatamountRob]

Didn't like the answer you got yesterday? If people have told you that you can do it, why aren't you?

 

[Car 54]

I agree with CRob's answer form yesterday. Just use HN for castable UCLA abutments and explain it to your Dr that it is the recommended metal to use. http://dentallabnetwork.com/forums/threads/porosity-on-semi-precious.24917/page-2#post-235048

I believe that UCLA abutments do have a gold content, and that's why it's advised to use a HN metal. At least that is what I was told by a manufacturer, and also why UCLA abutments are more expensive.

 

[Car 54]

See if this info helps, especially page 5: http://zimmerdental.com/pdf/lib_guidTsvAdvRestMan5of11.pdf

 

[Baobabtree]

Why not use a non precious ucla base if you must cast in non precious. Here in the UK there are several 3rd party manufacturers selling them, eg Talladium and Omnident.

 

[TheLabGuy]

Galvanic reactions...

 

[CatamountRob]

You can Google it and find 100 places that say not to do it but if we can find just one person to say it's okay on an Internet forum we'll be good to go.......

 

[Baobabtree]

Galvanic reactions...

True, which is why I haven't yet dipped my toe in using these abutments, but here in europe they seem to be getting more popular. For instance Straumann bought into Medentika principally for the reason that 3rd party companies are proving to be very popular on a component cost basis. eg below

http://us10.campaign-archive2.com/?u=8416b9250c26e99453134362f&id=b1e57d4de9&e=aa26fa5cdf

So I would imagine that there are a lot of labs and techs/surgeons using these components regularly. I heard a rumour that Straumann may soften their stance on crco abutments in the near future and mill them from custom cad designs .

 

[Dimis]

Didn't like the answer you got yesterday? If people have told you that you can do it, why aren't you?

when i heard from other people that there are metals you can cast on precious base , i started asking to see if they are wright. I didnt got enough answers yesterday and i wanted to see more peoples opinion i didnt know that that was a problem in any way rob


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[Dimis]

My dr uses nobel implants only and the ucla abudment that they have is with a gold base thats what my dealer told me


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[CatamountRob]

My dr uses nobel implants only and the ucla abudment that they have is with a gold base thats what my dealer told me


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What does Nobel say to use for a casting alloy?

 

[2thm8kr]

What does Nobel say to use for a casting alloy?

Ask the tech's on the forums

 

[sidesh0wb0b]

A question again if you can help im using semi only because i cast nobel implants castable that has precious base. People told me that they use a non precious metal to cast and they dont have problems of merging the two metals. Do anybody know anything. I dont want to use semi precious any more and my doc likes nobel




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don't use non precious. as a general rule for almost anything, including UCLAs, that's what you should think.
just don't use non precious.

 

[TheLabGuy]

its car bumper metal...maybe even Canadian car bumper metal, therefore much worse!!!

 

[rkm rdt]

 

[Affinity]

CrCo may not react with Ti, but the NB UCLA bases are in fact Au, it says on the package. CrCo and gold could have a reaction. But really why spend $300 on an abutment just to cast a nickels worth of metal over it..?

 

[rkm rdt]

CrCo may not react with Ti, but the NB UCLA bases are in fact Au, it says on the package. CrCo and gold could have a reaction. But really why spend $300 on an abutment just to cast a nickels worth of metal over it..?

..because the lab fees are too high and this is forcing some drs to become techs through no fault of their own?

 

[JohnWilson]

If you are looking for cheap then buy a plastic UCLA pattern and cast the interface.

All quality UCLA abutments use a non oxidizing gold which allows for the bond of precious metal. It has been proven that an alloy like 65sf is the best material for this abutment. PD based alloys are the worst and ironically are the #1 alloy used today.

You will destroy the gold if you chuck NP at it.

 

[Affinity]

I use lodestar which is a 60+/- SF. Works great.

Edit: its 51% gold

 

[Juko]

Just try it. Then come back with the results.