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Title: RCT comparing minimally with moderately rough implants. Part 2: microbial observations
Authors: Quirynen, Marc ×
Van Assche, N #
Issue Date: May-2012
Publisher: Munksgaard
Series Title: Clinical oral implants research vol:23 issue:5 pages:625-634
Article number: 10.1111/j.1600-0501.2011.02255.x
Abstract: BACKGROUND: Most current implants have a moderately rough surface (compared with older minimally rough "turned" implants) to facilitate osseointegration. This randomized controlled trial (RCT), with split-mouth design, examined whether this increased surface roughness influenced the initial subgingival plaque formation. MATERIAL AND METHODS: Ten fully edentulous and eight partially edentulous patients, all with a history of severe periodontitis, received 4-6 implants (mandible or maxilla). Per jaw, both minimally (turned) and moderately rough (TiUnite) implants (MKIII; Nobel Biocare) were alternated. Also, the healing and final abutments had similar surface characteristics. Subgingival biofilm formation was followed up for 1 year, and samples were analyzed by culture technique, qPCR and checkerboard RESULTS: Over the entire period, no statistically significant differences could be detected in subgingival microbiota between the minimally and moderately rough surfaces. In partially edentulous patients, the biofilm matured to a higher concentration of pathogens when compared with fully edentulous patients. The subgingival implant composition and concentration in partially edentulous patients were comparable to the subgingival microbiota along teeth. CONCLUSION: The roughness of the more modern implants did not influence the biofilm formation during the first year of implant loading.
URI: 
ISSN: 0905-7161
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Periodontology
× corresponding author
# (joint) last author

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