Effect of 10% sodium ascorbate on Streptococcus mutans adherence to bleached bovine enamel surface

  • Siavash Savadi Oskoee
  • Parnian Alizadeh Oskoee
  • Mohammad Hosein Soroush
  • Amir Ahmad Ajami
  • Maryam Beheshtirouy
  • Fatemeh Pournaghi-Azar

Abstract

Sodium ascorbate has been suggested to modify bleaching agents’ side effects especially on composite resin bonding to dental hard tissues. The aim of the present study was to evaluate the effect of 10% sodium ascorbate on Streptococcus mutans adherence to bleached enamel surfaces. Sixty enamel slabs from bovine incisors were used. After sterilization of the intact enamel surfaces with UV light, the specimens were randomly divided into the following treatment groups: (1) immersion in normal saline containing 2%NaN3; (2) bleaching of enamel surfaces with 10% carbamide peroxide; (3) bleaching of enamel surfaces with 10% carbamide peroxide followed by 10% sodium ascorbate treatment. Adherence of S. mutans to enamel surfaces was determined bacteriologically. Data was analyzed using one-way ANOVA and post hoc Tukey tests (P < 0.05).10% sodium ascorbate after bleaching (Group 3) caused a significant increase in surface adherence of S. mutans compared to groups 1 and 2 (P < 0.001). Because of bacterial adherence subsequent to use of sodium ascorbate to bleached enamel caries risk may be increased.

Keywords: Sodium ascorbate, Streptococcus mutans, carbamide peroxide

African Journal of Biotechnology Vol. 9(33), pp. 5419-5422, 16 August, 2010

Author Biographies

Siavash Savadi Oskoee
Department of Operative Dentistry, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
Parnian Alizadeh Oskoee
Department of Operative Dentistry, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
Mohammad Hosein Soroush
Department of microbiology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
Amir Ahmad Ajami
Department of Operative Dentistry, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
Maryam Beheshtirouy
Department of Operative Dentistry, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
Fatemeh Pournaghi-Azar
Department of Operative Dentistry, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
Published
2013-08-09
Section
Articles

Journal Identifiers


eISSN: 1684-5315