Soldering of removable partial dentures.

Both high- and low-heat removable partial denture alloys were soldered with combinations of different solders and heat sources. The soldered specimens were subjected to tensile strength testing, and a ranking of joint strength was developed. Joint strengths that were 85% as strong as the as-cast metal were created in both alloy types when 0.800 fine solder was used with an electrosoldering device as a heat source. All other combinations tested resulted in greater reductions in joint strength.