Sodium ascorbate use in bleached teeth

Robson De Sousa Ferreira,Elanno Pádua Albuquerque Do Nascimento

doi:10.15448/1980-6523.2016.4.23264

Robson De Sousa Ferreira, Elanno Pádua Albuquerque Do Nascimento

Open Access

https://doi.org/10.15448/1980-6523.2016.4.23264

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Abstract

OBJECTIVE: Tooth bleeching is a routine intervention in dental office, to be effective in removing stains and browning that compromise the aesthetics of smile. Sometimes there is a need of complementing with composite restorations, but for the use of these requires a certain waiting time. Thus, use of antioxidants such as sodium ascorbate increases the bond strength values due to removal of residual oxygen hinder polymerization. This study examined the use of sodium ascorbate as measure to allow for immediate adhesive restorations after bleaching procedures in vital teeth.METHODS: For that, they consulted national and international studies published between 1973 and 2015 available in Scielo, VHL and PubMed platforms.CONCLUSION: It can be concluded that sodium ascorbate has clinical relevance, but its use should be performed with caution, necessitating further investigation. The fact that in some studies its application introduced effective can not be attributed to factors inherent in the methodology.

Highlights

Among the aesthetic treatments currently available, it can highlight the tooth bleaching, routine intervention in dental office [1]
Several other measures have been reported in the literature aiming to make possible the production of instant adhesive restorations in bleached teeth, as the surface treatment with substances such as butylhydroxyanisole16, catalase and etanol [5], finding no significant values increase in bond strength immediately after implementation [21]
The effect of three antioxidants (SA, sodium ascorbate (SA) combined with a surfactant, and catalase) in microleakage of composite resin restorations after external tooth bleaching with Carbamide Peroxide (CP) 10%, it was observed that catalase was more effective at increasing bond strength, while the postponement of the restoration or treatment with SA were not able to effectively reduce infiltration [36]

Summary

INTRODUCTION

Among the aesthetic treatments currently available, it can highlight the tooth bleaching, routine intervention in dental office [1]. It is necessary to remember that the use of adhesive restorations after tooth bleaching requires a certain waiting time because the bleaching products commit their bond resistance [2]. The waiting 24 hours to 3 weeks for the manufacture of adhesive restorations in bleached teeth has been reported in the literature to recover the strength lost adhesion. This waiting period may not be feasible in situations where the aesthetic requirement is immediate [3]. It has been observed that among of all the methods, the use of antioxidants has improved bond strength values, while others have shown conflicting in recovering such amounts. It is important to note that, even for this agent, the complete reversal of the loss of adhesion is not possible [3, 5]

LITERATURE REVIEW

DISCUSSION

CONCLUSION