IOS implant verification

[rookiee]

Hi guys!

I got some bad results doing few ALLon4 arches in zirconia, one broken, one had misaligned MUA positions etc...of course, doc doesn't want to hear about PIC for example, he wants it to be digital completely etc...I stoped doing them right now because don't want to redo them after a while...

So what is the best way to do a verification jig on IOS implant cases? Print model and do a jig on that model, stone jig or acrylic one? And if there is a problem, how do you make a new model? You have a new position of implants with jig but you can't just pour some stone and make model, there is gingiva missing etc...

 

[zero_zero]

Sh1t in, sh1t out.

So what is the best way to do a verification jig on IOS implant cases?

No need for that if you have an accurate scan, the good dr. should invest in a photogrammetric system like PIC or iCam 4D then combine it with his IOS.

And if there is a problem, how do you make a new model?

Make a good model to begin with, a milled one... print the soft tissue if necessary. I have yet to see a printed one with tolerances close enough the get a truly passive fit.

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[CoolHandLuke]

if the doc is wanting to go all digital theres more to it than just the scans. no scanner alone will produce a vrifiably accurate data set, it must be accompanied by ct/xray scans showing correct seating, it must be accompanied by proper autoclave procedure of scan bodies, and must be accompanied by the oodles of diagnostic work that went into the prep work before starting this all on x. it is NOT as simple as take a scan, get a prosthetic.

make (mill or print) a METAL bar to use as a verification jig. ask to use it to verify placement, and if it doesnt fit passively, go ahead with a new scan of the scan bodies, do not cut the bar. this should work out to costing between 50-120$ per bar depending on the price you paid for the disc.

with two scans of scan bodies you can align the scans and SHOW the difference from scan to scan and hopefully communicate this to your clinic, they need to see that IOS alone does not give passive fit objects unless you get lucky. you need the PIC or iCam to bring accuracy to your case, or you'll just be mucking about like a fool in the dark.

and, when you are capable of error proof prosthetics, you can now grow to work with more clinics to accomplish this and grow your reputation and business. start a club. get referrals.

hard bars are tough medicine. deviant scan demonstrations are the cure.