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Comparative Study
. 2019 Jul 3;20(13):3267.
doi: 10.3390/ijms20133267.

Comparison between Sandblasted Acid-Etched and Oxidized Titanium Dental Implants: In Vivo Study

Eugenio Velasco-Ortega  1 , Ivan Ortiz-García  2 , Alvaro Jiménez-Guerra  2 , Loreto Monsalve-Guil  2 , Fernando Muñoz-Guzón  3 , Roman A Perez  4 , F Javier Gil  5
Affiliations
Comparative Study

Comparison between Sandblasted Acid-Etched and Oxidized Titanium Dental Implants: In Vivo Study

Eugenio Velasco-Ortega et al. Int J Mol Sci. .

Abstract

The surface modifications of titanium dental implants play important roles in the enhancement of osseointegration. The objective of the present study was to test two different implant surface treatments on a rabbit model to investigate the osseointegration. The tested surfaces were: a) acid-etched surface with sandblasting treatment (SA) and b) an oxidized implant surface (OS). The roughness was measured by an interferometeric microscope with white light and the residual stress of the surfaces was measured with X-ray residual stress Bragg-Bentano diffraction. Six New Zealand white rabbits were used for the in vivo study. Implants with the two different surfaces (SA and OS) were inserted in the femoral bone. After 12 weeks of implantation, histological and histomorphometric analyses of the blocks containing the implants and the surrounding bone were performed. All the implants were correctly implanted and no signs of infection were observed. SA and OS surfaces were both surrounded by newly formed trabeculae. Histomorphometric analysis revealed that the bone-implant contact % (BIC) was higher around the SA implants (53.49 ± 8.46) than around the OS implants (50.94 ± 16.42), although there were no significant statistical differences among them. Both implant surfaces (SA and OS) demonstrated a good bone response with significant amounts of newly formed bone along the implant surface after 12 weeks of implantation. These results confirmed the importance of the topography and physico-chemical properties of dental implants in the osseointegration.

Keywords: acid-etched surface; implant surface; osseointegration; oxidized surface; sandblasted surface; titanium.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Scanning Electronic Microscope images of the two different implants tested: (a) dental implant sandblasted and acid-etched surface (SA); (b) dental implants with oxidized surface (OS); (c) surface of SA dental implants; (d) surface of OS dental implants.
Figure 2
Figure 2
Light microscope images of the two different implants tested: (a) sandblasted and acid-etched surface implant (SA); (b) oxidized surface implant (OS).
See this image and copyright information in PMC

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