Edition V06N02 | Year 2012 | Editorial Artigo Inédito | Pages 44 to 55
Introduction: The quality of the bone-implant interface is directly influenced by implant surface roughness and a roughness average, with the Sa between 1 to 2µm, has demonstrated better clinical and laboratory results. In Brazil, are installed more than two million implants per year, where 79% are manufactured by domestic companies. However, very little is known or published about the characterization of surfaces of these implants, on the micrometer level.
Objective: The aims of this study are to evaluate and characterize numerically the surface of the implants BoneLike, of Biomet 3i do Brasil company, one of the five largest companies in the Brazilian market.
Methods: Were evaluated a total of 6 implants, purchased directly on the market, of two different designs (BoneLike-HE and BoneLike-CM) and different batches, using light interferometry. Were performed 9 measurements randomly chosen for each unit, 3 on the tops, 3 on the valleys and 3 on the flanks of the threads. The same pattern was followed for evaluation by scanning electron microscope.
Results: The analyzed implants from this company showed Sa values of 0.47µm for BoneLike-HE and 1.01µm for BoneLike-CM. Comparing the batches, both designs showed statistically significant differences between them.
Conclusions: The roughness values found herein categorize the surfaces of BoneLike–HE implants as smooth, and BoneLike–CM implants as moderately rough, with Sa values quite close to a smooth surface.
Rosa MB, Albrektsson T, Francischone CE, Schwartz Filho HO, Wennerberg A. Characterization of implants surface of the five largest companies in the Brazilian market, on micrometric level. Part II: Biomet 3i Bone- Like implants. Dental Press Implantol. 2012 Apr-June;6(2):44-55.