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Effect of fluoride solutions on color and surface roughness of dental composites / Efeito de soluções fluoretadas sobre a cor e rugosidade de superfície de compósitos odontológicos
Mundim, Fabrício Mariano; Rodrigues Cruvinel , Diogo; Fonseca Roberti Garcia, Lucas da; Carvalho Panzeri Pires-de-Souza, Fernanda.
Afiliação
  • Mundim, Fabrício Mariano; University of São Paulo. Ribeirão Preto. BR
  • Rodrigues Cruvinel , Diogo; University of São Paulo. Ribeirão Preto. BR
  • Fonseca Roberti Garcia, Lucas da; University of São Paulo. Ribeirão Preto. BR
  • Carvalho Panzeri Pires-de-Souza, Fernanda; University of São Paulo. Ribeirão Preto. BR
RFO UPF ; 19(1): 77-82, abr. 2014.
Article em En | LILACS-Express | LILACS | ID: lil-726463
Biblioteca responsável: BR1.1
ABSTRACT

Objective:

The aim of this study was to assess the ac-tion of fluoride solutions on color stability (?E) and sur-face roughness (Ra) of composites (HeliomolarTM, 4 Sea-sonsTM, Tetric N-CeramTM, SR AdoroTM). Materials and

method:

A Teflon matrix (12x2 mm) was used to fabri-cate 24 test specimens for each composite. The samples were separated into 4 groups (n=6), according to the immersion solution distilled water (control), acidulated phosphate fluoride (1.23%), neutral sodium fluoride gel (2%), and solution of sodium fluoride (0.05%). Color (Spectrophotometer PCB 6807) and roughness (Surf-corder SE 1700) readings were performed before and after immersion into the solutions.

Results:

Composites presented color alteration within clinically acceptable limits (?E<3.3), increasing according to the periods of immersion. Regarding roughness, it was observed that Ra values were lower than the critical limit to promote increase in dental biofilm retention (Ra>0.2 µm). Con-clusions Color and surface roughness alteration of the different composites was clinically acceptable after im-mersion in all fluoride solutions and in all periods.
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Texto completo: 1 Coleções: 01-internacional Base de dados: LILACS Idioma: En Revista: RFO UPF Assunto da revista: ODONTOLOGIA Ano de publicação: 2014 Tipo de documento: Article País de afiliação: Brasil País de publicação: Brasil
Texto completo: 1 Coleções: 01-internacional Base de dados: LILACS Idioma: En Revista: RFO UPF Assunto da revista: ODONTOLOGIA Ano de publicação: 2014 Tipo de documento: Article País de afiliação: Brasil País de publicação: Brasil