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Etched implants: A comparative surface analysis of four implant systems
Author(s) -
SzmuklerMoncler S.,
Testori T.,
Bernard J. P.
Publication year - 2003
Publication title -
journal of biomedical materials research part b: applied biomaterials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.665
H-Index - 108
eISSN - 1552-4981
pISSN - 1552-4973
DOI - 10.1002/jbm.b.20021
Subject(s) - profilometer , implant , materials science , surface finish , surface roughness , scanning electron microscope , etching (microfabrication) , biomedical engineering , reproducibility , dental implant , dentistry , composite material , mathematics , medicine , surgery , layer (electronics) , statistics
Surface texturing by acid etching has recently become popular among dental implant manufacturers. The aim of this study was to compare the surface topography of four implant systems and to check the reproducibility of the industrial process of each implant system. Three implants per system have been selected from three distinct batches. They were observed under a scanning electron microscope (SEM), and roughness was determined with a contact profilometer by measuring five height‐descriptive parameters ( Ra , Rq , Rz ISO , Rt , and Rsk , a texture parameter Sm , and a hybrid parameter R Δ q . The analysis showed that each implant system displayed a distinct surface topography that could not be mistaken. When sandblasting was performed prior to etching, surface topography was a combination of macro‐ and microroughness. The roughness and the amount of remaining sand varied among the batches, showing that the industrial process is not fully developed. Deviation from the released technical information was found for two out of four implant manufacturers. Based on the available biological and clinical data on textured surfaces, it is suggested that it is bone interlocking at the interface that maintains the biological properties of textured surfaces, rather than a strong implant fixation per se. © 2003 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater 69B: 46–57, 2004