Hello

Obtaining a replica of the RPD frame can be interlaced by 3D scanning and subsequent 3D printing.

For this retrieval technology you can find a lot of information especially about dentures.

Here's more information:

https://www.youtube.com/watch?v=7FARxi0Qr8s

https://www.youtube.com/watch?v=SLYZTACt5Y0

https://www.youtube.com/watch?v=T0gK1QfGMY0

http://www.proslab.com.au/3d-Removable-Partial-Denture-RPD-Laser-Printing-Melbourne.shtml

Success in research

With respect

Emil Yankov

Unfortunately, our ability to duplicate a cast metal frame using traditional lost wax techniques are probably going to fall well short of actually doing this as an exact, or even a decent approximation, duplication. The idea of using a copy milling process would probably be a little closer, the recommendation from Dr. Yankov above for scanning and printing is also going to be pretty close.

The problem with a removable partial denture framework is that you have metal and you have acrylic and then you have to try to assemble them to each other in a very precise way. If you have an all acrylic removal dental prosthesis it would be fairly easy to do a copy milling or a printing approach but when you add the metal frame in it becomes more complex. And dare I say less predictable.

Technically not possible

I have asked from my institute none answer is available

I suggest as follows

Step 1 remove the metallic frame from R P D

Step 2 contract the frame by putting in freezer

Step 3 apply thin film of separating medium

Step 4 duplicate the frame in duplicating flask in wax

Step 5 remove the wax template

Step 6 attach the sprue of desired dimensions and location

Step 7 invest the frame in investment material

Step 8 do the casting by lost wax technique

Step 9 make acrylic framework over this

I hope you can create complete prosthesis

I am not prosthodontist ,I am periodontist my language may be no upto mark but still may be understood

Two methods:

1_ conventional 2-using sophistication duplicator