About this Journal Submit a Manuscript Table of Contents
International Journal of Biomaterials
Volume 2012 (2012), Article ID 181024, 14 pages
http://dx.doi.org/10.1155/2012/181024
Research Article

In Vitro Osteogenic Properties of Two Dental Implant Surfaces

1Department of Fundamental Biology and Health Sciences, Research Institute on Health Sciences (IUNICS), University of Balearic Islands, E-07122 Palma de Mallorca, Spain
2Department of Biomaterials, University of Oslo, 0317 Oslo, Norway
3Oral Research Laboratory, Institute for Clinical Dentistry, University of Oslo, 0317 Oslo, Norway

Received 9 May 2012; Revised 12 September 2012; Accepted 15 September 2012

Academic Editor: Paulo Guilherme Coelho

Copyright © 2012 Marta Monjo 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.

Abstract

Current dental implant research aims at understanding the biological basis for successful implant therapy. The aim of the study was to perform a full characterization of the effect of two commercial titanium (Ti) surfaces, OsseoSpeed and TiOblast, on the behaviour of mouse preosteoblast MC3T3-E1 cells. The effect of these Ti surfaces was compared with tissue culture plastic (TCP). In vitro experiments were performed to evaluate cytotoxicity, cell morphology and proliferation, alkaline phosphatase activity, gene expression, and release of a wide array of osteoblast markers. No differences were observed on cell viability and cell proliferation. However, changes were observed in cell shape after 2 days, with a more branched morphology on OsseoSpeed compared to TiOblast. Moreover, OsseoSpeed surface increased BMP-2 secretion after 2 days, and this was followed by increased IGF-I, BSP, and osterix gene expression and mineralization compared to TiOblast after 14 days. As compared to the gold standard TCP, both Ti surfaces induced higher osteocalcin and OPG release than TCP and differential temporal gene expression of osteogenic markers. The results demonstrate that the gain of using OsseoSpeed surface is an improved osteoblast differentiation and mineralization, without additional effects on cell viability or proliferation.