How to create an accurate solder transfer connection. Use a carbide disk to create channels in proximal metal frameworks that you plan to attach using GC Resin so they will lock together more accurately.
Hi everybody this is Dr. Jeff Dorfman at The Center for Special Dentistry in New York City talking about how to create proper contacts for a solder transfer on a full arch porcelain fused to metal bridge. If you look here you will see this is a full arch case and that the entire upper jaw of the patient actually has been prepared for porcelain fused to metal crowns and here is one side of the framework that will fit here and here is another side of the framework that fits here. What I will be doing is checking the fit of both sides of the frames to make sure they fit well around the teeth and to make sure there is also no rocking. At the very end what I will be doing is I need to connect these two pieces with GC resin to give a one piece frame. What is common if we can do a close up now in the two sections here it is very common to have a straight connection between the two pieces. What I like to do is I like to take a disk and in here create a couple slots. I like to do it on this side here and I will like to do it on the other side. And I may try to get one more in on this side. And the result can you see clearly I have made two little channels exactly where the solder connection is going to be made. The reason for that is when I put in my GC resin and it is going to flow between these during the solder transfer the GC resin will be much better able to lock into these little channels to hold the two separate pieces of the framework more accurately together when it goes back to the lab for the transfer. This is Dr. Dorfman at the Center for Special Dentistry wishing you a great day.