PMMA vs Processed Acrylic Provisional - Longevity

Contraluz

Contraluz

Well-Known Member
Full Member
So, experience wise, what lasts longer in a real world, long term provisional, situation? I know certain PMMAs are "certified" for long term provisionals. But I often hear that the pts chew them up like there is no tomorrow. Do processed acrylic provisional hold up better?

I don't do too many provisionals, except the ocasional PMMA on bigger implant cases. But, I have a case coming up where I need a provisional that should last up to a year.

What is your experience? And what materials would you use?

Thanks in advance,

M
 
Car 54

Car 54

Well-Known Member
Donator
Full Member
Good question, I was thinking about that one during my other post in user names thread.

When you mention the long term PMMA, since you know the Ivoclar products including their Teilo CAD PMMA that I believe is supposed to be able to withstand
a year at ideal thicknesses, but I've never needed one to last past about the 4 - 6 month mark.
 
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2thm8kr

2thm8kr

Beanosavedmysociallife
Full Member
In my experience industrial processed PMMA is much stronger than traditional.
I have milled temp dentures, full arch SR implant temps, full arch on a few preps opposing each other and in different combinations. If you stay away from cantilevers, respect the law of beams, and bulk up thin areas around implant channels it's quite durable.

Three to six months is typical around here while implants finish cooking. Had some have to much last much longer (1-2yrs)due to varied patient circumstances. Have seen some patients wear down the oclussion, but certainly no more than processed. Replacing or amending for any reason is simple since it's a digital design.

For us it's become a pretty versatile material to work out solutions for long term treatment plans. I'm not using any fancy name branded milled pmma. It's a temp, it may need to be replaced during the treatment.
 
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