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Photofunctionalization and non-thermal plasma activation of titanium surfaces.
Henningsen, Anders; Smeets, Ralf; Hartjen, Philip; Heinrich, Oliver; Heuberger, Roman; Heiland, Max; Precht, Clarissa; Cacaci, Claudio.
Afiliación
  • Henningsen A; Department of Oral and Maxillofacial Surgery, University Hospital Hamburg-Eppendorf, Martinistr. 52, 20246, Hamburg, Germany. a.henningsen@uke.de.
  • Smeets R; Department of Oral and Maxillofacial Surgery, German Armed Forces Hospital, Lesserstrasse 180, 22049, Hamburg, Germany. a.henningsen@uke.de.
  • Hartjen P; Department of Oral and Maxillofacial Surgery, University Hospital Hamburg-Eppendorf, Martinistr. 52, 20246, Hamburg, Germany.
  • Heinrich O; Department of Oral and Maxillofacial Surgery, University Hospital Hamburg-Eppendorf, Martinistr. 52, 20246, Hamburg, Germany.
  • Heuberger R; Department of Oral and Maxillofacial Surgery, University Hospital Hamburg-Eppendorf, Martinistr. 52, 20246, Hamburg, Germany.
  • Heiland M; RMS Foundation, Bischmattstraße 12, 2544, Bettlach, Switzerland.
  • Precht C; Department of Oral and Maxillofacial Surgery, Charité University Hospital, Augustenburger Platz 1, 13353, Berlin, Germany.
  • Cacaci C; Department of Oral and Maxillofacial Surgery, University Hospital Hamburg-Eppendorf, Martinistr. 52, 20246, Hamburg, Germany.
Clin Oral Investig ; 22(2): 1045-1054, 2018 Mar.
Article en En | MEDLINE | ID: mdl-28730456
ABSTRACT

OBJECTIVE:

The aim of this study was to compare UV light and non-thermal plasma (NTP) treatment regarding the improvement of physical material characteristics and cell reaction on titanium surfaces in vitro after short-term functionalization. MATERIALS AND

METHODS:

Moderately rough (Ra 1.8-2.0 µm) sandblasted and acid-etched titanium disks were treated by UV light (0.05 mW/cm2 at λ = 360 nm and 2 mW/cm2 at λ = 250 nm) or by NTP (24 W, -0.5 mbar) of argon or oxygen for 12 min each. Surface structure was investigated by scanning electron microscopy, confocal microscopy and X-ray photoelectron spectroscopy (XPS). Hydrophilicity was assessed by dynamic contact angle measurement. Cell attachment, viability, cell proliferation and cytotoxicity were assessed in vitro using murine osteoblast-like cells.

RESULTS:

UV irradiation or NTP treatment of titanium surfaces did not alter the surface structure. XPS analysis revealed a significantly increased oxidation of the surface and a decrease of carbon after the use of either method. NTP and UV light led to a significant better cell attachment of murine osteoblasts; significantly more osteoblasts grew on the treated surfaces at each time point (p < 0.001).

CONCLUSIONS:

UV light as well as NTP modified the surface of titanium and significantly improved the conditions for murine osteoblast cells in vitro. However, results indicate a slight advantage for NTP of argon and oxygen in a short time interval of surface functionalization compared to UV. CLINICAL RELEVANCE UV light and NTP are able to improve surface conditions of dental implants made of titanium.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Titanio / Rayos Ultravioleta / Gases em Plasma Límite: Animals Idioma: En Revista: Clin Oral Investig Asunto de la revista: ODONTOLOGIA Año: 2018 Tipo del documento: Article País de afiliación: Alemania

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Titanio / Rayos Ultravioleta / Gases em Plasma Límite: Animals Idioma: En Revista: Clin Oral Investig Asunto de la revista: ODONTOLOGIA Año: 2018 Tipo del documento: Article País de afiliación: Alemania
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