A study of the bleaching effect of a tooth bleaching product on a black tea extract by spectrophotometry

Silviya Stankova; Rumyana Cherkezova; Temenuga Trifonova; Slavcho Dimitrov

doi:10.14748/ssm.v45i0.985

A study of the bleaching effect of a tooth bleaching product on a black tea extract by spectrophotometry

Silviya Stankova, Rumyana Cherkezova, Temenuga Trifonova, Slavcho Dimitrov

Abstract

Tooth colour is determined by the complex combination of colours and optical properties of hard dental tissues (dentine, enamel) and any additional intrinsic and extrinsic stains that may be included in the tooth structure.Tooth bleaching is a non-invasive technique for tooth shade lightening by the application of tooth bleaching products for removing the discolorations that darken the tooth shade. The purpose of this research was to study the influence of two physical factors -blue light (LED, 450 nm) and electric current (2 mA) on the bleaching effect of a tooth bleaching product on black tea stain molecules, avoiding the complexity of tooth structure and the physics of hydrogen peroxide diffusion and light penetration in tooth. Spectrophotometry was used to compare the bleaching effect of H2O2 by the change of light absorption and optical density of the samples analyzed. Spectrophotometry manifested a decrease in the light absorption of all samples, most prominent and twice faster in the blue light exposed ones.

Keywords

tooth bleaching; hydroxide peroxide; spectrophotometry

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References

Buchalla, W., T.Attin. External bleaching therapy with activation by heat, light or laser - a systematic review. - Dent Mater., 23,2007, ¹ 5, 586-596.

Goldberg, M., M. Grootveld , E. Lynch. Undesirable and adverse effects of tooth-whitening products: a review. - Clin Oral Invest., 14, 2010, ¹1, 1-10

Joiner A; Pickles MJ, Matheson JR, Weader E, Noblet L, Huntingdon E. Whitening toothpastes: effects on tooth stain and enamel.- International Dental Journal, 52, 2002, ¹ S5, 424-30.

Joiner, A. Tooth colour: a review of the literature. - J Dent.,32, 2004, Suppl 1, 3-12.

Joiner A. The bleaching of teeth: A review of the literature. - J Dent., 34, 2006, ¹ 7, 412 - 419.

Kaneko, J., S. Inoue, S. Kawakami, H. Sano. Bleaching effect of sodium percarbonate on discolored pulpless teeth in vitro.- J Endod., 26, 2000, ¹1, 25-28.

Kashima-Tanaka, M., Y.Tsujimoto, K.Kawamoto, N. Senda, K. Ito, M. Yamazaki. Generation of free radicals and/or active oxygen by light or laser irradiation of hydrogen peroxide or sodium hypochlorite. - J Endod., 29, 2003, ¹ 2, 141-143.

Kroschwitz, J. I., ÃŒ.Howe-Grant M (eds): Encyclopedia of chemical technology, 4th ed, John Wiley and Sons, New York, 1992, pp.290-291.

Kwon, SR., SH. Ko, L. Greenwall: Tooth Whitening in Esthetic Dentistry: Principles and Techniques. London:Quintessence Publishing Co, Ltd, 2009

Lee, B-S., SH. Huang, YC.Chiang, YS Chien, CY. Mou , CP. Lin CP. Development of in vitro tooth staining model and usage of catalysts to elevate the effectiveness of tooth bleaching. - Dent Mater.,24, 2008, ¹1, 57-66

Nguyen, B.L., L.H. Nguyen. US Patent Appl.Public. ¹ US 2006/0127837 A1 ,Pub.date: Jun.15, 2006. Dental Bleaching using regenerative ionophoresis

Ontiveros, J.C., In -office Vital Bleaching with Adjunct Light. - Dent Clin North Am., 55, 2011, ¹2, 241-253.

Ostler et al. US Patent Application, Pub.¹: 20080311545, Pub. Date : Dec.18, 2008. Systems and Methods for Utilizing Ultrasonic Energy to Activate Tooth Whitening Substances.

Sun G. The role of lasers in cosmetic dentistry. - Dent Clin North Am., 44, 2000, ¹4, 831-850.

Suyama, Y., M. Otsuki, S. Ogisu, R. Kishikawa, J.Tagami, M.Ikeda et al. Effects of light sources and visible light-activated titanium dioxide photocatalyst on bleaching. - Dent Mater J., 28, 2009, ¹ 6, 693-699.

Watts, A., ÃŒ.Addy. Tooth discolouration and staining: a review of the literature. - Br Dent J., 190, 2001,¹ 6, 309-316.

Young, N., P. Fairley, V. Mohan, C. Jumeaux. A study of hydrogen peroxide chemistry and photochemistry in tea stain solution with relevance to clinical tooth whitening. - J Dent., 40, 2012, Suppl 2: e11-16.

DOI: http://dx.doi.org/10.14748/ssm.v45i0.985

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