FIT DISCRIMINATION OF IMPLANT-SUPPORTED FIXED PARTIAL DENTURES FABRICATED FROM IMPLANT LEVEL IMPRESSIONS MADE AT STAGE-I SURGERY

Statement of problem. The implant level impression can shorten the ove rall time frame of implant treatment. Purpose of study. The purpose of this study was to analyze the accuracy of fixed partial dentures cons tructed from impressions taken at implant installation surgery in part ially edentulous dogs. The study compared the fit of welded titanium f ixed partial dentures with that of cast gold alloy fixed partial dentu res. Material and methods. Three implants were placed on each side of the mandible in six adult greyhound dogs during stage I surgery Impres sions were taken of the implant positional relationships and two types of fixed partial dentures were fabricated for each side of the mandib le. Stage II surgery was performed after 3 months Results. Both types of fixed partial dentures compared favorably with the fit of implant-s upported fixed partial dentures in the edentulous jaw or traditional c ast fixed partial denture frameworks. Conclusions. Impressions taken a t implant installation surgery provide a valid transfer of information for the laboratory fabrication of the final restoration when the impl ants are placed to fulfill the requirements of primary stability.