Avaliação do potencial selador de tampões cervicais em dentes submetidos ao clareamento dental interno: uma revisão integrativa da literatura
Introduction: internal tooth bleaching is a non-invasive treatment modality for teeth with color changes. It is performed using bleaching agents, which react with dental pigments, resulting in crown whitening. Despite being a minimally invasive and relatively low-cost technique, internal bleac...
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| Formato: | bachelorThesis |
| Idioma: | pt_BR |
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Universidade Federal do Rio Grande do Norte
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| Endereço do item: | https://repositorio.ufrn.br/handle/123456789/52972 |
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| Resumo: | Introduction: internal tooth bleaching is a non-invasive treatment modality for teeth with color
changes. It is performed using bleaching agents, which react with dental pigments, resulting in
crown whitening. Despite being a minimally invasive and relatively low-cost technique,
internal bleaching can cause adverse effects, such as external root resorption. In this sense, the
present review aims to evaluate the effectiveness of different cervical plug materials in relation
to dentin permeability in teeth submitted to internal dental bleaching. Methodology: an
integrative literature review was carried out in the BVS, Pubmed, SciELO, Scopus and Web of
Science databases, with the descriptors “Nonvital teeth”, “Non-vital teeth whitening”,
“Coronal Barrier”, “Dental Leakage”, “External Cervical Reabsorption” and alternative
terms. The sample included articles in English and Portuguese, with no period restriction.
Inclusion criteria were in vitro studies that included a control group and were performed in
human teeth, excluding literature reviews, clinical trial protocols and letters to the editor. At
first, 143 articles were found, however after excluding duplicates and reading the title and
abstract, 7 were selected to compose the final sample. Results: all studies found in the literature
made a comparative analysis of different materials regarding the cervical sealing capacity in
order to prevent the diffusion of whitening agents. The reported materials were composite resin,
glass ionomer cement, calcium-enriched mix cement, MTA, biodentin, OrthoMTA and
coltosol. Studies showed similar effectiveness among all materials, with the exception of
composite resin, which showed inferior performance. Conclusion: the use of the analyzed
materials was crucial for the reduction in the levels of penetration of the bleaching agents in the
dentinal tubules, when compared to the control groups. In this sense, all materials showed a
certain degree of infiltration, however, the sealing promoted by coltosol, MTA, biodentin, glass
ionomer cement, OrthoMTA and the mixture enriched with calcium (CEM cement) was
considered satisfactory, being, therefore, the use of any of these is encouraged in order to avoid
the high degree of penetrability of the bleaching agents. |
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