Sensitivity and Tooth Whitening Agents

Authors

  • RANDALL M. POHJOLA DDS,

    Corresponding author
    1. Assistant Professor, Department of Oral Rehabilitation, Medical College of Georgia, Augusta, Georgia
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  • WILLIAM D. BROWNING DDS, MS,

    1. Associate Professor, Department of Oral Rehabilitation, Medical College of Georgia, Augusta, Georgia
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  • STEVEN T. HACKMAN DDS,

    1. Assistant Professor, Department of Oral Rehabilitation, Medical College of Georgia, Augusta, Georgia
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  • MICHAEL L. MYERS DMD,

    1. Professor, Vice Chairman, Department of Oral Rehabilitation, Medical College of Georgia, Augusta, Georgia
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  • MARY C. DOWNEY RDH, MS

    1. Assistant Professor, Department of Oral Rehabilitation, Medical College of Georgia, Augusta, Georgia
    2. Assistant Professor, Department of Associated Dental Sciences, Medical College of Georgia School of Dentistry, Augusta, Georgia
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Reprint requests: Randall M. Pohjola, DDS, Assistant Professor, Department of Oral Rehabilitation, 1120 15th Street, Augusta, GA 30912-1260; e-mail: rpohjola@mail.mcg.edu

ABSTRACT

Purpose: Three commercially available dentist-prescribed home-applied bleaching systems were evaluated to identify the incidence of sensitivity and to compare the efficacy of whitening the maxillary anterior teeth of 18 patients.

Methods: Nite White Excel 2Z (Discus Dental), fx (Challenge Products), and Rembrandt Xtra-Comfort (DenMat Corp.) were randomly assigned to six patients each. The fx product was used as a control since it was not advertised as a zero sensitivity product. The manufacturers' instructions for tray fabrication and use were followed while the patients bleached for 2 weeks. The patients kept a diary and were recalled at 1 week, 2 weeks, and 4 weeks. The shade change and the presence or absence of any sensitivity were evaluated at each recall.

Results: Nite White Excel 2Z was used for 83 days of treatment with the following percentage of positive sensitivity reported: 0% hot and cold, 2.4% throat sensitivity, 2.4% tongue sensitivity, and 25.3% gingival sensitivity. Rembrandt Xtra-Comfort was used for 84 days with 0% hot and cold, 0% throat, 11.9% tongue, and 27.4% gingival sensitivity reported. The fx product was used for 83 days and resulted in 14.5% hot and cold, 3.6% throat, 1.2% tongue, and 16.9% gingival sensitivity. All products lightened the teeth an average of eight shade tabs on the Vita guide. There was a statistically significant difference between the groups when comparing the presence of sensitivity (chi-squared test, p < .001) but not when comparing the shade tab change.

Ancillary