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Purpose: To characterize the surface of implants from Brazilian companies by light interferometry and evaluate the level of control of the surface treatment process. Materials and Methods: Oral implants from the five largest Brazilian companies were evaluated topographically. The surfaces of the implants were analyzed on the tops, valleys, and flanks of the threads, totaling nine measurements for each unit. The implants and results were separated in groups by their types of surface treatment and compared with wellknown international implants used as references. Results: The implants examined presented a mean height deviation of less than 1 μm, which was considered minimally rough, except for the SIN-SW implant (1.01 μm) and the Vulcano Actives design (1.26 μm). The surface enlargement values varied considerably in relation to the reference implant, with lower values noted in the group of implants subjected to sandblasting and acid-etching and with higher values obtained in the group treated by acid-etching and anodizing. There were statistically significant differences between batches of implants from all companies assessed, indicative of a substantial variance in implant topography from one batch to another. Conclusions: The low values of roughness found in the measurements and the differences between the values of the batches suggest that these companies should consider improving their surface treatments to achieve more uniform roughness. [ABSTRACT FROM AUTHOR]

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, more than two million implants per year are installed, 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. The aims of this study are to evaluate and characterize numerically the surface of the implants of SIN (Sistema de Implante Nacional) 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 (Tryon-HE and Strong-SW) 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 0.84μm for Tryon-HE and 1.01μm for Strong SW. Comparing the batches, only the SW design showed statistically significant differences between them. Conclusions: the roughness values found herein categorize the surfaces of Tryon-HE as minimally rough, and Strong-SW implants as moderately rough. [ABSTRACT FROM AUTHOR]

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. [ABSTRACT FROM AUTHOR]

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 2 μm, 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. The aims of this study are to evaluate and characterize numerically the surface of the implants of Neodent company, one of the five largest companies in the Brazilian market. Methods: Were evaluated a total of 9 implants, purchased directly on the market, of 3 different designs and different batches of the company, using a light interferometer. 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: In general, implants analyzed in this company, showed Sa values of 0.75 μm, 0.67 μm and 0.65 μm, respectively, for each design. Comparing the batches, all designs presented statistically significant differences between at least one batches in relation to other. Conclusions: The roughness values found, classify the surfaces of the three implants evaluated as minimally rough. [ABSTRACT FROM AUTHOR]