Predictability and outcome of titanium color after different surface modifications and anodic oxidation

• Published in: Dental Materials Journal Vol. 41; no. 6; pp. 930 - 936
• Main Authors: SEYIDALIYEVA, Aida, RUES, Stefan, EVAGOROU, Zinonas, HASSEL, Alexander Jochen, BÜSCH, Christopher, RAMMELSBERG, Peter, ZENTHÖFER, Andreas
• Format: Journal Article
• Language: English
• Published: Tokyo The Japanese Society for Dental Materials and Devices 25-11-2022; Japanese Society for Dental Materials and Devices; Japan Science and Technology Agency
• Subjects: Anodizing; Color; Color anodizing; Etching; Oxidation; Polishing; Sandblasting; Spectroradiometers; Surface modification technique; Surface treatment; Titanium; Variance analysis
• ISSN: 0287-4547; 1881-1361
• DOI: 10.4012/dmj.2022-075

To investigate the predictability and the outcome of surface modification techniques, including anodization. Four surface modification techniques were evaluated in this in-vitro study: sandblasting (S), polishing+anodizing (PA), sandblasting+anodizing (SA), polishing+etching+ anodizing (PEA). Color coordinates L*, a* and b* were collected using a spectroradiometer. Color differences between all groups were quantified by use of ΔE00. A possible influence of group membership was evaluated using 1-way ANOVA. Pair-wise inter-group comparisons were performed using post-hoc Tukey tests. PA specimens were the brightest and showed a pronounced yellowish and reddish hue. S and SA groups were significantly darker and predictability of outcome was higher compared to another groups. The most predictable surface treatment method is sandblasting. Anodizing techniques come along with the brightest and most chromatic color impression of the titanium.