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Accuracy evaluation of surgical guides in implant dentistry by non-contact reverse engineering techniques » demajournal.comShare on Facebook | Share on zahnigroups | Share on ALUMNIGROUPS
The comparison between the post-surgical implant replica positions and the positions in the pre-operative cast, for the five patients, shows a maximum distance in the range 1.02–1.25mm, an average distance in the range 0.21–0.41mm and a standard deviation in the range 0.21–0.29mm. The results of this research demonstrate accurate transfer of implant replica position by virtual implant insertion into a pre-operative cast and a post-operative cast obtained from impressioning. In previous studies the evaluation of the implant positions have required a post-surgical CT scan. With the indirect methods by laser scanning technique, proposed in the paper, this extra radiation exposure of the patient can be eliminated.