title: The influence of surface treatment on the implant roughness pattern.
abstract: An important parameter for the clinical success of dental implants is the formation of direct contact between the implant and surrounding bone, whose quality is directly influenced by the implant surface roughness. A screw-shaped design and a surface with an average roughness of Sa of 1-2 µm showed a better result. The combination of blasting and etching has been a commonly used surface treatment technique. The versatility of this type of treatment allows for a wide variation in the procedures in order to obtain the desired roughness.
  
  
  OBJECTIVE
  To compare the roughness values and morphological characteristics of 04 brands of implants, using the same type of surface treatment. In addition, to compare the results among brands, in order to assess whether the type of treatment determines the values and the characteristics of implant surface roughness.
  
  
  METHODS
  Three implants were purchased directly from each selected company in the market, i.e., 03 Brazilian companies (Biomet 3i of Brazil, Neodent and Titaniumfix) and 01 Korean company (Oneplant). The quantitative or numerical characterization of the roughness was performed using an interferometer. The qualitative analysis of the surface topography obtained with the treatment was analyzed using scanning electron microscopy images.
  
  
  RESULTS
  The evaluated implants showed a significant variation in roughness values: Sa for Oneplant was 1.01 µm; Titaniumfix reached 0.90 µm; implants from Neodent 0.67 µm, and Biomet 3i of Brazil 0.53 µm. Moreover, the SEM images showed very different patterns for the surfaces examined. CONCCLUSIONS: The surface treatment alone is not able to determine the roughness values and characteristics.
authors.affiliation: Division of Implantology, School of Dentistry, São Leopoldo Mandic University, Campinas, SP, Brazil. marcio@implantare.com.br
authors.forename: Marcio Borges
authors.initials: MB
authors.lastname: Rosa
authors.forename: Tomas
authors.initials: T
authors.lastname: Albrektsson
authors.forename: Carlos Eduardo
authors.initials: CE
authors.lastname: Francischone
authors.forename: Humberto Osvaldo
authors.initials: HO
authors.lastname: Schwartz Filho
authors.forename: Ann
authors.initials: A
authors.lastname: Wennerberg
mesh_terms: D000134:Acid Etching, Dental; D000704:Analysis of Variance; D003758:Dental Implantation, Endosseous / Q000379:methods*; D015921:Dental Implants; D006801:Humans; D008422:Materials Testing; D008855:Microscopy, Electron, Scanning; D012016:Reference Values; D018709:Statistics, Nonparametric; D013499:Surface Properties; D014025:Titanium / Q000737:chemistry*
chemical_list: D015921:Dental Implants; D014025:Titanium