Pj. Henry et al., FIT DISCRIMINATION OF IMPLANT-SUPPORTED FIXED PARTIAL DENTURES FABRICATED FROM IMPLANT LEVEL IMPRESSIONS MADE AT STAGE-I SURGERY, The Journal of prosthetic dentistry, 77(3), 1997, pp. 265-270
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.