Ultra High Translucent Zirconia Bridge
I just wanted to show a case that just got seated today. It was a bridge from 2=5. I would have preferred implants obviously, but the patient did not want to do the required grafting, etc... to do it. She was rather concerned about esthetics... so what do we do? I don't use e.max bridges in the posterior anymore and the high strength zirconia would have not looked good enough. I could have sent to the lab for a layered bridge... but I tried to use translucent zirconia instead. I have talked extensively about the short comings of this material. Even though the flexural strength of this material I used is 600mpa, there is no transfomational toughening present so it is much weaker than the zirconia that we all use same day. This is Copran Ultra Translucent zirconia from Empire Dental Solutions.
The result was excellent... will it work long term? We will see. The connectors were about 14mm2 on this and it was cemented. I fired it for 9 hours in the S1 furnace (cannot use Speedfire for this).
Just thought I would post as an option.
On 6/20/2017 at 12:18 pm, Jake Skowronski said... That looks great! What shade is that? A2?
Yes, shade A2
Nice option and hope the self-healing properties aren't needed to help in the posterior. Glazed or just polished after firing? Still looks a bit opaque, but better than most zirconia bridges!
Looks good, but I'm starting to get respectable esthetics with the ugly stuff. Especially with the S1 furnace, which I think makes a difference.
On 6/20/2017 at 12:24 pm, Ernie Johnson said...Nice option and hope the self-healing properties aren't needed to help in the posterior. Glazed or just polished after firing? Still looks a bit opaque, but better than most zirconia bridges!
It's stained and glazed. It must be the picture. This material looks better than e.max LT by quite a bit. Very translucent stuff. When Gregory sees this he can comment because he has used this material. It's very esthetic.
Always nice work Mike...I'll be curious about how it holds up long term. Did you infiltrate and stain and glaze this one?
Wow 9 hours! Looks good I have am having good results with esthetics and fit with Zirconia and speed fire so will be interested in what the translucent will do when available for it.
On 6/20/2017 at 12:56 pm, Mike Skramstad said...No I can tell that looks nothing like the full zirconia I deliver. I will definitely be trying this out.On 6/20/2017 at 12:24 pm, Ernie Johnson said...Nice option and hope the self-healing properties aren't needed to help in the posterior. Glazed or just polished after firing? Still looks a bit opaque, but better than most zirconia bridges!
It's stained and glazed. It must be the picture. This material looks better than e.max LT by quite a bit. Very translucent stuff. When Gregory sees this he can comment because he has used this material. It's very esthetic.
Jake
The speedfire will not be able to get results like this with the present generation of materials. I hope in the future this will change. This was done in the S1 oven over a period of 8-9 hours.
Mike-did you have to design that in in lab sw or can you design and mill from chairside or Premium sw?
Kevin
On 6/20/2017 at 5:47 pm, Kevin Hicks said... Mike-did you have to design that in in lab sw or can you design and mill from chairside or Premium sw? Kevin
You can design and mill in Chairside. You have to call TZI C to get past the lack of "quality label" on the zirconia. Then fire in traditional zirconia furnace for around 9 hours.
It is a nice material to work with. Good esthetic result. To get a better esthetic result I do a lot of carving in pre sintering stage it allows me to contain stains in a right place. You can also do a small cut back especially if you do anterior teeth. It is very cheap. I usually leave my restorations to sinter over night. Gregory
On 6/20/2017 at 3:55 pm, Peter Gardell said...I'll have to get the s1. I definitely need a more esthetic solution for posterior bridges...have a p CS2 for emax and speed fire for zirc. Should I get the s1 or is a new oven in the pipes?Jake
The speedfire will not be able to get results like this with the present generation of materials. I hope in the future this will change. This was done in the S1 oven over a period of 8-9 hours.
On 6/21/2017 at 6:39 am, Alex Botvinnik said... Or you can wait for the CS4....
I had the opportunity to pick up a barely used Speedfire at a great price but passed on it and decided to wait for the CS4. To me the Speedfire is too limited and inflexible.
Be aware that the CS4 takes twice as long for the same general result for the same day zirconia.
Come Mentor a class in Scottsdale as there is now a CS4 in the lab and I'm sure an Ivoclar rep at the course will be happy to fill you in on the details. :-)
It is a monster...twice as big as the Speedfire in my observation!
On 6/21/2017 at 1:54 pm, Ernie Johnson said...Come Mentor a class in Scottsdale as there is now a CS4 in the lab and I'm sure an Ivoclar rep at the course will be happy to fill you in on the details. :-)
It is a monster...twice as big as the Speedfire in my observation!
Ernie
Did you see the size of the baffle. I think I remember it being said it can process blocks about the same size as the speedfire
It is exactly the same as the S1 footprint and yes it can do the long sintering.
However, I don't do the long sintering much so I would rather have the speedfire for clinical efficiency. The CS4 will add close to 20 min to your appt for chairside zirconia
