Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2018 Apr-Jun;12(2):163-170.
doi: 10.4103/ejd.ejd_165_17.

Effect of sodium metabisulfite gel on the bond strength of dentin of bleached teeth

Henrique Heringer Vieira  1 , Josè Carlos Toledo Jr  2 , Anderson Catelan  1 , Thayla Hellen Nunes Gouveia  1 , Flávio Henrique Baggio Aguiar  1 , Josè Roberto Lovadino  1 , Dèbora Alves Nunes Leite Lima  1
Affiliations

Effect of sodium metabisulfite gel on the bond strength of dentin of bleached teeth

Henrique Heringer Vieira et al. Eur J Dent. 2018 Apr-Jun.

Abstract

Objective: This study aimed to evaluate the effect of the application of sodium metabisulfite (SMB) on the bond strength of bleached teeth.

Materials and methods: The study was divided into two parts. The first part evaluated the application of various concentrations of SMB for 1 h prior to the completion of bonding procedures. Fifty blocks were divided into five groups (n = 10): control; bleaching with 35% hydrogen peroxide (HP); HP + 5% SMB; HP + 12.5% SMB; and HP + 25% SMB. The second part evaluated the application of 25% gel SMB to either enamel or dentin, including the application time. Sixty blocks were divided into six groups (n = 10): control; bleaching with 35% HP; HP + 25% SMB for 1 h in enamel; HP + 25% SMB for 1 h in dentin; HP + 25% SMB for 10 min in enamel; and HP + 25% SMB for 10 min in dentin.

Statistical analysis: Following the completion of microshear bond testing, data were analyzed using one-way analysis of variance as well as Tukey's and Dunnett's tests.

Results: In part 1, data analysis revealed statistical differences (P < 0.0001) between HP and HP + 5% SMB. No statistical differences were found between the control and both HP + 12.5% SMB and HP + 25% SMB. Part 2 revealed a statistical difference (P = 0.001359) only between the bleached group and others.

Conclusions: The use of 25% SMB gel immediately after bleaching was able to reverse the deleterious effect of bleaching on the bond strength of dental composites to dentin.

Keywords: Antioxidant; bond strength; free radicals; microshear.

PubMed Disclaimer

Conflict of interest statement

There are no conflicts of interest.

Figures

Figure 1
Figure 1
Mean and standard deviation of bond strength as a function of concentration of sodium metabisulfite, in percentage. *Significantly differs from the control group (P < 0.05). The gray ribbon represents the standard deviation of the control group
Figure 2
Figure 2
Mean and standard deviation of bond strength as a function of substrates and application times of sodium metabisulfite 25%, in part 2. All groups differed from and hydrogen peroxide group–35% hydrogen peroxide (P < 0.05). No significant difference was found between times or substrates (P > 0.05). The gray ribbon represents the standard deviation
See this image and copyright information in PMC

References

    1. Kihn PW. Vital tooth whitening. Dent Clin North Am. 2007;51:319, viii–31. - PubMed
    1. Minoux M, Serfaty R. Vital tooth bleaching: Biologic adverse effects – A review. Quintessence Int. 2008;39:645–59. - PubMed
    1. Eimar H, Siciliano R, Abdallah MN, Nader SA, Amin WM, Martinez PP, et al. Hydrogen peroxide whitens teeth by oxidizing the organic structure. J Dent. 2012;40(Suppl 2):e25–33. - PubMed
    1. Giachetti L, Scaminaci Russo D, Baldini M, Goracci C, Ferrari M. Reparability of aged silorane with methacrylate-based resin composite: Micro-shear bond strength and scanning electron microscopy evaluation. Oper Dent. 2012;37:28–36. - PubMed
    1. Garcia EJ, Mena-Serrano A, de Andrade AM, Reis A, Grande RH, Loguercio AD, et al. Immediate bonding to bleached enamel treated with 10% sodium ascorbate gel: A case report with one-year follow-up. Eur J Esthet Dent. 2012;7:154–62. - PubMed