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Effects of External Bleaching on Indentation and Abrasion Characteristics of Human Enamel in vitro

The Ohio State University, College of Dentistry, Columbus, Ohio 43221

I. Denry

The Ohio State University, College of Dentistry, Columbus, Ohio 43221

The application of home-bleaching procedures as a means of lightening multiple teeth has become increasingly popular. Very few studies, however, have determined the effect of this treatment upon dental hard tissues. This in vitro study evaluated the effects of a 10% carbamide peroxide gel on the apparent fracture toughness, hardness, and abrasion characteristics of human enamel.

The apparent fracture toughness of enamel was reduced by about 30% after bleaching for a period of 12 hours with no significant change in surface hardness. Enamel treated with the bleaching gels also exhibited a small but significant decrease in abrasion resistance. This behavior was most likely due to an alteration of the organic matrix of enamel under the chemical action of hydrogen peroxide. Further investigation of the clinical significance of this process is needed.

REFERENCES

• Anstis GR, Chantikul P., Lawnbr, Marshall DB (1981). Acritical evaluation of indentation techniques for measuring fracture toughness: I, Direct crack measurements. J Am Ceram Soc 64:533-538.[CrossRef]
• Arens DE, Rich JJ, Healey HJ (1972). A practical method of bleaching tetracycline-stained teeth. Oral Surg Oral Med Oral Pathol 34:812-817.[CrossRef][Medline] [Order article via Infotrieve]
• Arwill T., Myrberg N., Soremark R. (1969). Penetration of radioactive isotopes through enamel and dentine. Odontol Revy 20:47-54.[Medline] [Order article via Infotrieve]
• Atkinson HF (1947). An investigation into the permeability of enamel using osmotic methods. Br Dent J 83:205-214.[Medline] [Order article via Infotrieve]
• Box GE, Cox DR (1964). An analysis of transformations. J R Statist Soc 26:211-243.
• Clinical Research Associates Newsletter (1989 ). Tooth bleaching, home-use products. 13:1-4.
• Cohen S., Parkins FM (1970). Bleaching tetracycline-stained teeth. Oral Surg Oral Med Oral Pathol 29:465-471.[CrossRef][Medline] [Order article via Infotrieve]
• Corcoran JF, Zillich RM (1974). Bleaching of vital tetracycline-stained teeth. J MI Dent Assoc 56:340-343.
• Craig RG, Peyton FA, Johnson DW (1961). Compressive properties of enamel, dental cements, and gold. J Dent Res 40:936-945.[Free Full Text]
• DeLong R., Sasik C., Pintado MR, Douglas WH (1989). The wear of enamel when opposed by ceramic systems. Dent Mater 5:266-271.[CrossRef][Medline] [Order article via Infotrieve]
• Evans AG, Marshall DB (1980). Wear mechanisms in ceramics. In: Rigney DA, editor. Fundamentals of friction and wear of materials. American Society for Metals, 439-453.
• Hassan R., Caputo AA, Bunshah RF (1981). Fracture toughness of human enamel. J Dent Res 60:820-827.[Abstract/Free Full Text]
• Haywood VB, Heymann HO (1989). Nightguard vital bleaching. Quint Int 20:173-176.
• Haywood VB, Leech T., Heymann HO, Crumpler D., Bruggers K. (1990). Nightguard vital bleaching: effects on enamel surface texture and diffusion. Quint Int 21:801-804.
• Hunsaker KJ, Christensen GL (1990). Tooth bleaching chemicals-influence on teeth and restorations (abstract). J Dent Res 69:303.
• Jones DW, Rizkalla AS, King HW, Sutow EJ (1988a). Fracture toughness and dynamic modulus of tetrasilicic-micaglass-ceramic. J Can Ceram Soc 57:39-46.
• Jones DW, Rizkalla AS, Sutow EJ, King HW ( 1988b). Indentation fracture toughness and dynamic Young's modulus of ceramic biomaterials. Mater Sci E A105/106:207-213.
• Lawn BR, Marshall DB (1979). Hardness, toughness, and brittleness: an indentation analysis. JAm Ceram Soc 62:347-350.[CrossRef]
• Ledoux WR, Malloy RB, Hurst RW, McInnes-Ledoux P., Weinberg R. (1985). Structural effects of bleaching on tetracycline-stained vital rat teeth. J Prosthet Dent 54:55-59.[CrossRef][Medline] [Order article via Infotrieve]
• Morena R., Lockwood PE, Fairhurst CW (1988). Fracture toughness of commercial dental porcelains. Dent Mater 2:58-62.[CrossRef]
• Rasmussen ST, Patchin RE, Scott DB, Heuer AH (1976). Fracture properties of human enamel and dentin. J Dent Res 55:154-164.[Abstract/Free Full Text]
• Seghi RR, Rosenstiel SF, Bauer P. (1991). Abrasion of human enamel by different dental ceramics in-vitro. J Dent Res 70:221-225.[Abstract/Free Full Text]
• Wolff MS, Kim H., Gwinnett AJ, Ianzano J., Alexander S. (1990). Effects of "walking" bleach technique on enamel bond strengths (abstract). J Dent Res 69 570.

Journal of Dental Research, Vol. 71, No. 6, 1340-1344 (1992)
DOI: 10.1177/00220345920710061201


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