There are three basic fabrication methods for Implant-Supported Partial Prostheses: one-piece casting, framework cemented on prepared abutments, and laser welding. Which of these is preferred? A recent study 1, evaluated the vertical misfit of implant-supported frameworks made using these different techniques to obtain passive fit.
The study concluded:
The one-piece casted frameworks presented significantly higher vertical misfit values than those found for framework cemented on prepared abutments and laser welding techniques (P < .001 and P < .003, respectively). Laser welding and framework cemented on prepared abutments are effective techniques to improve the adaptation of three-unit implant-supported prostheses. These techniques presented similar fit.1
What has been your experience with these different techniques and which one do you prefer?
Read the Full Abstract Here
1. Int J Prosthodont. 2016 Jul-Aug;29(4):351-3 Fit Analysis of Different Framework Fabrication Techniques for Implant-Supported Partial Prostheses..Spazzin AO, et al.