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BioMed Research International
Volume 2016 (2016), Article ID 8767845, 6 pages
http://dx.doi.org/10.1155/2016/8767845
Clinical Study

Findings of a Four-Year Randomized Controlled Clinical Trial Comparing Two-Piece and One-Piece Zirconia Abutments Supporting Single Prosthetic Restorations in Maxillary Anterior Region

1Private Practice, 80131 Naples, Italy
2Division of Oral Surgery and Implantology, Department of Neurosciences, Reproductive and Odontostomatological Sciences, University of Naples Federico II, Via Pansini 5, 80131 Naples, Italy
3Department of Neurosciences, Reproductive and Odontostomatological Sciences, University of Naples Federico II, Via Pansini 5, 80131 Naples, Italy

Received 1 June 2015; Revised 4 December 2015; Accepted 15 December 2015

Academic Editor: Konstantinos Michalakis

Copyright © 2016 Guerino Paolantoni et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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