Effect of hydrogen peroxide application on color and surface roughness of two restorative materials

Authors

  • Dilcele Silva Moreira Dziedzic Universidade Positivo http://orcid.org/0000-0002-9528-5189
  • Lucia Helena Ramos da Silva Universidade de Ribeirão Preto
  • Bruna Luiza do Nascimento Universidade Positivo
  • Marina Samara Baechtold Universidade Positivo
  • Gisele Maria Correr Universidade Estadual de Campinas
  • Carla Castiglia Gonzaga Universidade Positivo

DOI:

https://doi.org/10.20396/bjos.v15i3.8649978

Keywords:

Resin-modified glass-ionomer cement. Composite. In vitro bleaching. Color behaviour.

Abstract

Aim: This study investigated the effect of an in-office bleaching technique on lightness, color and surface roughness of two commercially available materials: a resin-modified glass-ionomer cement and a nanohybrid resin composite. Methods: Twelve disk-shaped specimens were prepared with both materials. The samples were bleached with 35% hydrogen peroxide. Bleaching was tested initially onto a smooth surface and later onto a polished one of the same specimens. The effect of the treatments on lightness and color was verified with a spectrophotometer. Surface roughness was measured with a digital surface roughness tester. The data were statistically analyzed by repeated measures ANOVA and post hoc Tukey’s test (alpha = 0.05). Results: Significant variation in lightness and color was observed on the resin-modified glass-ionomer cement after the first bleaching procedure. Roughness increased significantly only after polishing the resin-modified glass-ionomer cement surface. Composite color variation was evident in the last observation period, but roughness and lightness variation due to bleaching and polishing was not significant. Conclusion: The bleaching treatment caused significant color alterations on the materials tested. This study observed that the application of in-office bleaching onto the glass-ionomer cement promoted clinically observable color alteration, and polishing after bleaching is contraindicated for this material.

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Author Biographies

Dilcele Silva Moreira Dziedzic, Universidade Positivo

Possui graduação em Odontologia pela Universidade Federal de Alfenas (1985) e mestrado em Odontologia - University of Toronto (1995). Atualmente é professora adjunto da Universidade Positivo. Tem experiência na área de Odontologia, com ênfase em Biomateriais, atuando principalmente nos seguintes temas: titânio, osteocondução, resposta óssea, PLGA e câmara de crescimento.

Lucia Helena Ramos da Silva, Universidade de Ribeirão Preto

Possui especialização em PROGRAMA DA SAUDE DA FAMILIA pela Universidade de Ribeirão Preto(2003). Tem experiência na área de Enfermagem, com ênfase em Enfermagem de Saúde Pública.

Bruna Luiza do Nascimento, Universidade Positivo

Graduada em Odontologia pela Universidade Positivo (2015). Aluna da Especialização de Dentistica da Universidade Positivo (2016-2017). Mestranda em Odontologia pela Universidade Positivo (2016-2017). Realizou estágio supervisionado na área de Dentística. Atua especialmente nos temas de técnicas e materiais restauradores.

Marina Samara Baechtold, Universidade Positivo

Graduação em Comércio Exterior pela Universidade Positivo (2008). Graduação em Odontologia pela Universidade Positivo (2013). Estágio extra curricular em consultórios das áreas de endodontia, odontopediatria e implantodontia.

Gisele Maria Correr, Universidade Estadual de Campinas

Possui graduação em Odontologia pela Universidade Estadual de Campinas (2000) e Doutorado em Materiais Dentários pela Universidade Estadual de Campinas (2007). Pós-Doutorado em Odontopediatria na FOP/UNICAMP (2007-2008). Atualmente é Professora Titular dos cursos de Odontologia e Mestrado em Odontologia Clínica da Universidade Positivo - Curitiba-PR.

Carla Castiglia Gonzaga, Universidade Positivo

Possui graduação em Odontologia pela Universidade de São Paulo (2002) e doutorado em Odontologia (Materiais Dentários) pela Universidade de São Paulo (2007). Atualmente é professora titular dos cursos de Graduação em Odontologia, do Mestrado Profissional em Odontologia Clínica e do Doutorado em Odontologia da Universidade Positivo.

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Published

2017-08-11

How to Cite

1.
Dziedzic DSM, Silva LHR da, Nascimento BL do, Baechtold MS, Correr GM, Gonzaga CC. Effect of hydrogen peroxide application on color and surface roughness of two restorative materials. Braz. J. Oral Sci. [Internet]. 2017 Aug. 11 [cited 2022 Sep. 30];15(3):185-9. Available from: https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8649978

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