Evaluation of the accuracy of implant | 合法醫療器材資訊網

由JHChoi著作·2007·被引用134次—Withinthelimitationsofthisstudy,usinga2-implantmodel,theaccuracyofimplant-levelimpressionsforinternal-connectionimplantrestorationswassimilarfor ...

Purpose: This study evaluated the accuracy of 2 implant-level impression techniques (direct nonsplinted and splinted) for the fabrication of multi-unit internal-connection implant restorations in 2 simulated clinical settings (parallel and divergent) using a laboratory model.

Materials and methods: A dental stone master model was fabricated with 2 pairs of implant replicas. One pair simulated a parallel clinical condition and the other an 8-degree-divergent condition. Ten stone casts were made from vinyl polysiloxane impressions of the master model for each impression technique. Half of the samples were created by a direct nonsplinted technique (square impression copings, custom tray), and the other half were made by a direct splinted technique (square impression copings splinted with autopolymerizing acrylic resin, custom tray). Four strain gauges were fixed on each metal framework to measure t...