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Journal of Prosthetic Dentistry

The effect of current bleaching agents on the color of light-polymerized composites in vitro

      Abstract

      Statement of problem

      Bleaching agents may affect the color of existing composite restorations.

      Purpose

      The purpose of this study was to compare the effect of 10% carbamide peroxide and 10% hydrogen peroxide on the color of light-polymerized hybrid, macrofilled, and polyacid-modified composites.

      Material and methods

      Two light-polymerized hybrid composites (3M Valux and Spectrum TPH), 1 macrofilled condensable composite (Solitaire), and 2 polyacid-modified composites (Dyract AP and Compoglass) were used. The hybrid composites served as controls. The color of 8 specimens of each material was analyzed by use of a spectrophotometer before bleaching. The specimens were then divided randomly into 2 subgroups (n=4). One group was immersed in 10% carbamide peroxide solution and the other in 10% hydrogen peroxide, for 8 hours each for 14 consecutive days. After bleaching, color changes (Δ E) were determined for each material and compared by use of the Kruskal-Wallis test, followed by the Mann-Whitney U test (P<.05).

      Results

      After bleaching with carbamide peroxide, the color changes (ΔE) for Dyract AP (2.18; SD = 1.41), Compoglass (1.14; SD = 0.26) and Solitaire (1.56; SD = 0.89) were higher than the color changes recorded for 3M Valux (0.63; SD = 3.60), and Spectrum TPH (0.66; SD = 1.24). The differences between materials bleached with carbamide peroxide were not statistically significant. After bleaching with hydrogen peroxide, the color changes for Dyract AP (9.39; SD = 0.53) and Compoglass (5.15; SD = 0.52) were higher than the changes recorded for Spectrum TPH (4.53; SD = 1.53) and 3M Valux (3.41; SD = 4.40), whereas the color change of Solitaire (3.69; SD = 0.57) was significantly higher than that of 3M Valux (P=.01). The color changes for all restorative materials tested were clinically detectable after the application of 10% hydrogen peroxide. However, clinically noticeable discoloration was observed only for Dyract AP treated with 10% carbamide peroxide.

      Conclusion

      In comparison to 10% carbamide peroxide, 10% hydrogen peroxide caused more color changes in the composites tested.
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      References

        • Haywood V.B
        • Heymann H.O
        Nightguard vital bleaching.
        Quintessence Int. 1989; 20: 173-176
        • Li Y
        Tooth bleaching using peroxide-containing agents.
        Compend Contin Educ Dent. 1998; 19: 783-786
        • Dunn J.R
        Dentist-prescribed home bleaching.
        Compend Contin Educ Dent. 1998; 19: 760-764
        • Haywood V.B
        • Leech T
        • Heymann H.O
        • Crumpler D
        • Bruggers K
        Nightguard vital bleaching.
        Quintessence Int. 1990; 1: 801-804
        • Murchison D.F
        • Charlton D.G
        • Moore B.K
        Carbamide peroxide bleaching.
        Oper Dent. 1992; 17: 181-185
        • Bitter N.C
        • Sanders J.L
        The effect of bleaching agents on the enamel surface.
        Quintessence Int. 1993; 24: 817-824
        • Ernst C.P
        • Marroquin B.B
        • Willershausen-Zonnchen B
        Effects of hydrogen peroxide-containing bleaching agents on the morphology of human enamel.
        Quintessence Int. 1996; 27: 53-56
        • Oltu U
        • Gurgan S
        Effects of three concentrations of carbamide peroxide on the structure of enamel.
        J Oral Rehabil. 2000; 27: 332-340
        • Mor C
        • Steinberg D
        • Dogan H
        • Rotstein I
        Bacterial adherence to bleached surfaces of composite resin in vitro.
        Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 1998; 86: 582-586
        • Monaghan P
        • Lim E
        • Lautenschlager E
        Effects of home bleaching preparations on composite resin color.
        J Prosthet Dent. 1992; 68: 575-578
        • Council on Dental Materials and Devices
        Revised American Dental Association specification No.12 for denture base polymers.
        J Am Dent Assoc. 1975; 90: 451-458
      1. CIE Recommendations on uniform color spaces. Color difference equations. Psychometric Color Terms. Suppl. No. 2 to CIE Publication No.15 (e-13.1)1971/(TC-1.3), Paris: Bureau Central de la CIE

        • Leonard R.H
        • Sharma A
        • Haywood V.B
        Use of different concentrations of carbamide peroxide for bleaching teeth.
        Quintessence Int. 1998; 29: 503-507
        • Ruyter I.E
        • Nıner K
        • Moller B
        Color stability of dental composite resin materials for crown and bridge veneers.
        Dent Mater. 1987; 3: 246-251
        • Seghi R.R
        • Hewlett E.R
        • Kim J
        Visual and instrumental colorimetric assessments of small color differences on translucent dental porcelain.
        J Dent Res. 1989; 68: 1760-1764
        • Johnston W.M
        • Kao E.C
        Assessment of appearance match by visual observation and clinical colorimetry.
        J Dent Res. 1989; 68: 819-822
        • Shotwell J.L
        • Razzoog M.E
        • Koran A
        Color stability of long-term soft denture liners.
        J Prosthet Dent. 1992; 68: 836-838