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Changes in surface characteristics of titanium and zirconia after surface treatment with ultraviolet light or non‐thermal plasma
Author(s) -
Henningsen Anders,
Smeets Ralf,
Heuberger Roman,
Jung Ole T.,
Hanken Henning,
Heiland Max,
Cacaci Claudio,
Precht Clarissa
Publication year - 2018
Publication title -
european journal of oral sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.802
H-Index - 93
eISSN - 1600-0722
pISSN - 0909-8836
DOI - 10.1111/eos.12400
Subject(s) - cubic zirconia , titanium , x ray photoelectron spectroscopy , ultraviolet , materials science , wetting , irradiation , surface roughness , contact angle , argon , analytical chemistry (journal) , ultraviolet light , thermal treatment , thermal oxidation , chemical engineering , chemistry , composite material , metallurgy , chromatography , ceramic , optoelectronics , organic chemistry , layer (electronics) , physics , nuclear physics , engineering
Positive effects of irradiation with ultraviolet ( UV ) light or treatment with non‐thermal plasma on titanium and zirconia surfaces have been described in various studies. The aim of this study was to assess and compare the changes in the physicochemical surface conditions of titanium and zirconia surfaces after a short treatment with UV light or with non‐thermal plasmas of argon or oxygen. Titanium and zirconia samples with moderately rough surfaces were treated for 12 min either in a UV ‐light oven or in a non‐thermal plasma reactor that generates non‐thermal plasmas of oxygen or argon. Changes in surface conditions were assessed by confocal microscopy, dynamic contact angle measurement, and X‐ray photoelectron spectroscopy ( XPS ). No changes in roughness occurred. Ultraviolet irradiation and non‐thermal plasma significantly increased the wettability of the titanium and zirconia surfaces. X‐ray photoelectron spectroscopy showed an increase of oxygen and a significant decrease of carbon after treatment with either method. Thus, ultraviolet light and non‐thermal plasma were found to be able to improve the chemical surface conditions of titanium and zirconia following a short exposure time. However, further in vitro and in vivo studies are needed to determine the relevance of the results.