how to make a sure fire solder index for an impant bridge or splinted crowns?

Splinted implant crowns -
note one on right is not full seated



Sometimes when we are lucky and we dentists can take an elastomeric impression of multiple restorative sites and generate a model accurate to be used to fabricate an accurate fitting splinted restoration. When this happens when we try in connected crowns they fit perfectly in the mouth. Sometimes they do not, especially when we are dealing with the splinting of implant restorations.

The above radiograph shows a check film for a try in of two splinted implant crowns. The posterior unit is not seating fully .  then I removed it from the mouth and separated most of the connection between the two crowns. Before I completed the separation I reinserted the two crowns and screwed them down. At that point I finished separating them with a small flame diamond and then finished screwing down the posterior unit that was "non engaging". This allowed me to more perfectly seat it since It was more or less in the right orientation.
Separated castings screwed down before adding GC resin to make
 solder index. Note that the posterior casting is fully seated now


two screw retained implant crowns
with gc resin index with coat hanger



The lab fabricates an altered model and soldered the two casting together in the correct position and I returned it for try in. Below a radiograph showing the fully seated splinted crown copings.
Since wire coat hangers are not always available, a paper clip that has been cut and doubled over can be substituted for a coat hanger. It works equally well.



from Ask Dr. Spindel - http://lspindelnycdds.blogspot.com/2019/11/how-to-make-sure-fire-solder-index-to.html - http://lspindelnycdds.blogspot.com/

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