The present prospective multicenter study indicates that the prefabrication, on the basis of models derived from three-dimensional oral implant planning software, of both surgical templates for flapless surgery and dental prostheses for immediate loading is a very reliable treatment option. It is evident that the same approach could be used for staged surgery and in partial edentulism.
The hypothesis was rejected, as the statistical results indicated that there were significant differences between virtually planned implants' position and the final position of implants placed clinically.
Statistically significant differences were observed in positions between the implant replicas in the pre-operative plaster models created from a CAD/CAM surgical template and the implant replicas in the post-operative plaster models that were made from patients' impressions taken at ≥1-year follow-up. Due to the lack of reference objects in the pre- and post-operative working casts, additional refinements are required in order to validate the impression matching method and recommend the method to be used.
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