[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.12989/amr.2012.1.1.031

Dental arch wires with tooth-like color

Chen, Sinn-Wen (Department of Chemical Engineering, National Tsing Hua University)
Wu, Hsin-Jay (Department of Chemical Engineering, National Tsing Hua University)
Liu, Chih-Hao (Department of Chemical Engineering, National Tsing Hua University)
Chien, Yuan-Chun (Department of Chemical Engineering, National Tsing Hua University)
Hu, Chih-Chang (Department of Chemical Engineering, National Tsing Hua University)

Publication Information

Advances in materials Research / v.1, no.1, 2012 , pp. 31-35 More about this Journal

Abstract

Unique tooth-like (milky white) color ${\beta}$ -Ti dental arch wires are prepared by anodization in a 1M $H_2SO_4$ electrolyte at $30^{\circ}C$ and 30 V for 88 min and 40 s. Aggregates are formed on these surfaces of the anodized wires with tooth-like colors, and the results are different from those of the anodized wires with monochromatic colors which have smooth oxide surfaces. Similar to the monochromatic wires, the composition of the oxide layer is $TiO_{2-x}$ and the x approaches zero at the outer layer. But different from the amorphous structure observed in monochromatic wires, the oxide layers are partially crystallized with an anatase structure. The milky white colors result from the rough and crystalized oxide layers, not by the interference effect as observed in monochromatic wires.

Keywords

orthodontic materials; surface properties; anodization; tooth color;

Citations & Related Records

Reference

1	Chen, S.W., Wu, H.J., Huang, L.L. and Liou J.W.E. (2009), Metallic dental devices with tooth colors and their preparation methods, United Statues Patent Application Publication, Alexandria, NV.
2	Gaul, E. (1993), "Coloring titanium and related metals by electrochemical oxidation", J. Chem. Educ., 70(3), 176-178. DOI ScienceOn
3	Hrapovic, S., Luan, B.L., D'Amours, M., Vatankhah, G. and Jerkiewicz, G. (2001), "Morphology, chemical composition, and electrochemical characteristics of colored", Langmuir, 17(10), 3051-3060. DOI ScienceOn
4	JCPDS (Joint Committee on Powder Diffraction Standards) database, 44-1288( ${\beta}$ -Ti) and 04-0477(anatase $TiO_2$ ).
5	Kusy, R.P. and Stush, A.M. (1987), "Geometric and material parameters of a nickel-titanium and a beta titanium orthodontic arch wire alloy", Dent. Mater., 3(4), 207-217. DOI ScienceOn
6	Kwon, Y.H., Seol, H.J., Kim, H.I., Hwang, K.J., Lee, S.G. and Kim, K.H. (2005), "Effect of acid fluoride solution on beta titanium alloy wire", J. Biomed. Mater. Res., B: Appl. Biomater., 73(2), 285-290.
7	Moulder, J.F., Stickle, W.F., Sobol, P.E. and Bomben, K.D. (1992), Handbook of X-ray Photoelectron Spectroscopy, Perkin-Elmer Corp., USA.
8	Nakamura, T., Ichitsubo, T., Matsubara, E., Muramatsu, A., Sato, N. and Takahashi, H. (2005), "On the preferential formation of anatase in amorphous oxide film", Scripta Mater., 53(9), 1019-1023. DOI ScienceOn
9	Walker, M.P., Ries, D., Kula, K., Ellis, M. and Fricke, B. (2007), "Mechanical properties and surface characterization of beta titanium and stainless steel orthodontic wire following topical fluoride treatment", Angle Orthod., 77(2), 342-348. DOI ScienceOn
10	Whitters, C. J., Strang, R. and Brown, D. (1999), "Dental materials: 1997 literature review", J. Dent., 27(6), 401-435. DOI ScienceOn
11	Wu, H.J., Huang, L.L., Chen, S.W., Liou, J.W.E. and Lee, Y.T. (2009), "Surface characterization of anodized dental archwires and miniscrews", J. Taiwan Inst. Chem. Eng., 40(5), 563-572. DOI ScienceOn
12	Yang, C.L., Chen, F.L. and Chen, S.W. (2006), "Anodization of the dental arch wires", Mater. Chem. Phys., 100(2-3), 268-274. DOI ScienceOn
13	Aladjem, A. (1973), "Anodic oxidation of titanium and its alloys", J. Mater. Sci., 8(5), 688-704. DOI ScienceOn
14	Carley, A.F., Chalker, P.R., Riviere, J.C. and Roberts, M.W. (1987), "The identification and characterization of mixed oxidation states at oxidized titanium surfaces by analysis of X-ray photoelectron spectra", J. Chem. Soc. Faraday Trans., 83, 351-370. DOI
15	Bass, M., DeCusatis, C., Li, G., Mahajan, V.N. and Stryland, E.V. (2010), Handbook of Optics, Vol. IV: Optical properties of materials, nonlinear optics and quantum optics, 3rd Edition, McGraw-Hill, New York.