Resumo

CAHUANTICO CARHUAPOMA, Yessica; CHENG ABUSABAL, Lizbeth; NOBORIKAWA KOHATSU, Andres Kenichi  e  TAY, Lidia Yileng. Non-vital bleaching: Case report. Rev. Estomatol. Herediana [online]. 2016, vol.26, n.4, pp.244-254. ISSN 1019-4355.

Tooth discoloration varies in etiology, location and severity. It may be extrinsic, intrinsic or a combination of both. A treatment option in such cases is non-vital bleaching, which presents itself as a conservative alternative to other procedures like composite restorations, veneers or ceramic crowns, as it preserves the most of tooth structure. The aim of this paper is to report a clinical case of a patient with non vital tooth discoloration and how it was successfully treated with internal bleaching procedures; also to review the current literature discussing the etiology of discoloration in non-vital teeth, treatment options and agents available. Non-vital bleaching techniques include: In-office bleaching, walking bleach, inside/outside bleaching and finally, the combined technique. Bleaching agents are available in different concentrations for these techniques, whose effectiveness is discussed in this paper. There are several factors that could affect the effectiveness of non-vital bleaching, such as patient age, time, degree and etiology of discoloration. All of these can influence the final result and treatment longevity.

Palavras-chave : Internal bleaching; non-vital bleaching; discoloration; walking bleach.

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