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Determinants of biofilm formation and cleanability of titanium surfaces.
Zaugg, Lucia K; Astasov-Frauenhoffer, Monika; Braissant, Olivier; Hauser-Gerspach, Irmgard; Waltimo, Tuomas; Zitzmann, Nicola U.
Afiliación
  • Zaugg LK; Department of Periodontology, Endodontology and Cariology, University Center for Dental Medicine, University of Basel, Basel, Switzerland.
  • Astasov-Frauenhoffer M; Clinic for Preventive Dentistry and Oral Microbiology, University Center for Dental Medicine, University of Basel, Basel, Switzerland.
  • Braissant O; Center of Biomechanics & Biocalorimetry, University of Basel, Allschwil, Switzerland.
  • Hauser-Gerspach I; Department of Urology, University Hospital Basel, Basel, Switzerland.
  • Waltimo T; Clinic for Preventive Dentistry and Oral Microbiology, University Center for Dental Medicine, University of Basel, Basel, Switzerland.
  • Zitzmann NU; Clinic for Preventive Dentistry and Oral Microbiology, University Center for Dental Medicine, University of Basel, Basel, Switzerland.
Clin Oral Implants Res ; 28(4): 469-475, 2017 Apr.
Article en En | MEDLINE | ID: mdl-26992098
OBJECTIVE: The aim of the present study was to analyze biofilm formation on four different titanium-based surfaces (machined titanium zirconium (TiZr) alloy, M; machined, acid-etched TiZr alloy, modMA; machined, sandblasted, acid-etched TiZr alloy, modSLA; and micro-grooved titanium aluminum vanadium alloy, TAV MG) in an experimental human model. MATERIAL AND METHODS: Custom-made discs were mounted in individual intraoral splint housings and worn by 16 volunteers for 24 h. The safranin staining assay, isothermal microcalorimetry (IMC), and SEM were applied before and after surface cleaning. RESULTS: The hydrophilic surfaces modMA and modSLA with greater surface micro-roughness exhibited significantly more biofilm than the hydrophobic surfaces TAV MG and M. The standardized cleaning procedure substantially reduced the biofilm mass on all surfaces. After cleaning, the IMC analyses demonstrated a longer lag time of the growth curve on TAV MG compared to modSLA. Inter- and intraindividual variations in biofilm formation on the titanium discs were evident throughout the study. CONCLUSIONS: Surface hydrophilicity and roughness enhanced biofilm formation in vivo, whereas surface topography was the most influential factor that determined surface cleanability. While the grooved surface retained larger amounts of initial biofilm, the machined surface was easier to clean, but proliferation indicated by increased metabolic activity (growth rate) in IMC occurred despite mechanical biofilm removal.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Complicaciones Posoperatorias / Titanio / Implantes Dentales / Biopelículas / Aumento de la Cresta Alveolar Tipo de estudio: Etiology_studies / Prognostic_studies / Risk_factors_studies Límite: Adult / Aged / Female / Humans / Male / Middle aged Idioma: En Revista: Clin Oral Implants Res Asunto de la revista: ODONTOLOGIA Año: 2017 Tipo del documento: Article País de afiliación: Suiza Pais de publicación: Dinamarca
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Complicaciones Posoperatorias / Titanio / Implantes Dentales / Biopelículas / Aumento de la Cresta Alveolar Tipo de estudio: Etiology_studies / Prognostic_studies / Risk_factors_studies Límite: Adult / Aged / Female / Humans / Male / Middle aged Idioma: En Revista: Clin Oral Implants Res Asunto de la revista: ODONTOLOGIA Año: 2017 Tipo del documento: Article País de afiliación: Suiza Pais de publicación: Dinamarca