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Cosmo Post from Ivoclar work great for me. Wax as You normally would, sprue as you normally would. Cut as cosmo post in half and put a few notches in it. When you invest fill your ring to your pattern (completly cover with only the margins exposed) turn OFF the vibration and insert post, and...

Looking at the picture it looks like there is edentulous space in the posterior. Possibly #18 & 19 missing ? Lets assume the opping side of the mandibular arch is the same, and they are leucite glass. Could the occlusal load these teeth have to bear now be the reason for the cracks?

Yeah I think its the same thing. If It disappears when you reduce the sprue you have nothing to worry about. If it was still visible when the crown is contoured then you may want to re evaluate. Maybe that dark spot comes from when You are cutting thru the sprue and they "pop" off. Could be Un...

If it is a lower value area where the sprue was then he needs to change his spruing. He needs to put the sprue more on the cusp tip than the axial wall of the restoration. It was explained to me that this happens because of the structure of the lithium disilicate and how it needs to flow thru...

I have my L30 set up somewhat the same way. I set to 1562 F and heat while I bench set the rings. I leave my timer @ 0:00 with no for the second stage. After I put the rings in I then set the timer or use the digital one I have for timing my rings. The thing I have noticed with the timer on the...

PG, WHen I do Diasgnostics for my doctors I include a refractory model of the wax up with the case delivery at no charge. By doing this I feel that the doctor will be more likely to use the wax up for his temps. Alot of issues that can arise from not using diagnostics can easily be avoided.If...

I took the Masters course Ethetics and all-ceramics 2 years ago with Jurgen Seger at Ivoclars facility and we used the bleach e.max ingots to do a combo case of veneers bridges and full press crowns. If I remember corectly we started with the BL2 and when we finished everything was BL4. He...

I would hate to have clients that would try and break your nuts by asking for discounts of 5 or 10 bucks off a crown. Those are the kinds of clients that I would want to stay away from because all they are after is price and not quality. What I did with a client that was doing that I told...

I must have been wrong, the bridge seemed to etch so i'm guessing it wasnt tilite. The ADS etch etches all metals except cromium cobalt. I appreciated all the help and quick response. Rob and Six, You had me awake all night with cold sweats thinking that the bridge wouldnt etch and I was...

I was thinking do something like that if he would ok it. But also thinking about telling him if it comes loose again that we should make him a new one out of e.max and bond that bad boy in place. Then you have no worries for a long time.. And by the way It doesnt sound like fun drilling...

Oh yeah I know exactly what you mean about everything your saying. If you you add up a single unit vs. multiple units the profit isnt close. I completely understand your thinking and by doing him this favor I am hoping to get some loyalty back from him. I would love to be home alot earlier...

Rob, You mean instead of etching just blast it n send back ? I guess if the etch doesnt work that is the only other option I have. Thanks for the help and I'll let you know how it goes tomorrow. Six, I am assuming that tiltite is the metal they used for the bridge but not 100% on it...

No actually I find to be a compliment. If it were the other way around I think I would be more disappointed. I look at it as being a dentist is a business just like runninga lab is a business. When I order supplies I always look for the best quality for the price and vice versa so I dont hold it...

Thanks for the response rob. Its a guess but for some reason Tilite is sticking in my head as what he said it was. I may be wrong on that though. I also am wondering how to charge for this considering that I didnt make the bridge. I am in the process of thrying to form a relationship with the...

I was wondering if I could get a refresher on etching a maryland bridge. I have not done this for about 10 years now and had a local doc that called with the request. I ordered the Etch-It kit from american dental supply and if I remember right You cover the porcelain and polished side with wax...

Before I had the inlab I was sending them to a lava lab. I have always had good results with the lava. I personallly like the shaded frameworks and the opal essence that comes from them. When I was milling my own I was adding shaded Zirliner on top after sintering. They looked good after built...

Yeah the system I am using now is a Kerr Ultra-Waxer, some pro art wax and a EP 600 ! Tried and Trusted. I have the emax to the point now that after the invex they are contoured and margins finished in 5 minutes at the longest. It takes longer for the glaze program to run than it does to contour...

Some of the problems I had were chips at the margins, Like you said rocks on longer spans and the biggest problem was after milling a large bridge on a 55 or 65mm block the mcxl would break the bridge as it tried to cut the sprue holder. So as it got close to the end of milling i would just...

Harmony, I also had trouble with Zirconia. The small bridges were ok but once i would get into 55mm - 85mm blocks all I could do was hold my breath and cross my fingers and toes hoping that they would make it..... !!! Al, In the software design you could place occ contacts where every you...

Yeah I got it and sent it back about 7 months after. Personally I was not getting a predictable result. I was getting crowns to a "solid" material state faster but the contouring and finishing was taking me 2-3 times longer than pressing. Previous to the inlab I was pressing e.max for 2 years...