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Dental Materials Supporting Your Practice

Secondary Pours Can Minimize Second-Guessing


In this short video segment, Rob Waters from Watersedge Dental Laboratory speaks to Dr. Suham Alexander about how the lab has instituted a protocol to help ensure the predictability and consistency in outcomes for dentists and their patients.

When an impression is taken for crown and bridge or implant restorations, a master model is poured. There are times, however, when the restoration may seat fully and accurately on the master model but, may differ when seated in the patient’s mouth. This may be caused by distortion and the fact that master models may get worn at times with the constant removal and replacement of the restoration on the die. To counter this, the Watersedge team pours a secondary (and at times, a tertiary) model to check the fit and accuracy of the restoration. If the fit is different from the die on the master model, the technician’s will troubleshoot to see what the issue(s) may be.

With implant restorations, the lab also pours a secondary model using an appropriate analog to check the restoration. Additionally, before the restoration is fabricated, an alignment jig is produced to ensure that the analog is seated properly on the implant in all dimensions (vertical, horizontal and bucco-lingual) and is tried on both the master as well as the secondary model.

This practice has taken the stress out of delivery of final restorations for dentists as little adjustment time is required chairside.



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