Journal of Prosthodontics News   July 27, 2020

Effects of two post-processing methods onto surface dimension


Now online in the Journal of Prosthodontics, a study aimed to evaluate the effects of intaglio, and cameo surface dimensions of in‐office stereolithographic fabricated implant surgical guides.

Drs. Ammoun, Dalal, Abdulmajeed, Deeb, and Bencharit assessed two post-processing methods to the overall fabricated surface dimensions using stereolithographic printer on 20 identical implant surgical guides. Ten guides were post‐processed using an automated method. The other ten guides were post‐processed using a series of hand washing in combination with ultrasonics.

Results indicate there was a statistical difference between the means of the two methods for the overall, intaglio, and cameo positive and negative discrepancies.

The authors concluded that using hand washing with ultrasonics appeared to be consistently better than the automated method for a single implant tooth-supported implant guide. The manual method presented with more positive discrepancies, while the automated method presented with more negative discrepancies.

Ammoun R, Dalal N, Abdulmajeed AA, Deeb GR, Bencharit S. Effects of two post-processing methods onto surface dimension of in-office fabricated stereolithographic implant surgical guides. J Prosthodont 2020. 


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