alexa Bacterial adherence to bleached surfaces of composite resin in vitro.
Dentistry

Dentistry

Dentistry

Author(s): Mor C, Steinberg D, Dogan H, Rotstein I

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Abstract OBJECTIVE: The effect of bleaching agents on bacterial adherence to polished surfaces of composite resin restorations was assessed in vitro. STUDY DESIGN: Samples of light-curing composite resins were treated with either 10\% carbamide peroxide or 10\% hydrogen peroxide for 1, 3, or 7 days. Bacterial adherence of Streptococcus mutans, Streptococcus sobrinus, and Actinomyces viscosus to the treated resin samples was analyzed and compared with adherence to nonbleached controls. RESULTS: A 10\% solution of carbamide peroxide caused a significant increase in surface adherence of Streptococcus mutans and Streptococcus sobrinus after 3 days (P < .01). A 10\% solution of hydrogen peroxide caused a significant increase in surface adherence of Streptococcus mutans and Streptococcus sobrinus after 3 and 7 days (P < .01). A decrease in adherence of Actinomyces viscosus was found after treatment with 10\% hydrogen peroxide for 7 days (P < .05). CONCLUSIONS: It appears that bleaching agents may affect adherence of certain cariogenic microorganisms to the outer surfaces of composite resin restorations.
This article was published in Oral Surg Oral Med Oral Pathol Oral Radiol Endod and referenced in Dentistry

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