Effect of light curing unit and antiseptic mouthwashes on the physical properties of gingiva-colored composite resin


  • Tatiane Cristina Dotta Universidade de São Paulo
  • Leonardo de Pádua Andrade Almeida Universidade de São Paulo
  • Mayara Manfrin Arnez Universidade de São Paulo
  • Raisa Castelo Universidade de São Paulo
  • David Emanuel Ugarte University National of Concepción
  • Andréa Cândido dos Reis Universidade de São Paulo
  • Alma Blasida Concepcion Elizaur Benitez Catirse Universidade de São Paulo




Composite resins, Light curing, Mouthwashes


Objective: This study evaluated surface roughness (Ra) and color difference (ΔE00) of a gingiva-colored composite resin (NT Premium Gengiva, Coltene), light-activated with three light curing units (LCU) and immersed in different mouthwash solutions. Methods: 90 composite specimens (n=10) were divided according to the LCU: L1-Valo, L2-Bluephase and L3-Optilight Max; and solution: S1-alcohol-based antiseptic mouthwash (Listerine Cool Mint), S2-alcohol-free antiseptic mouthwash (Listerine Cool Mint Zero Alcohol) and S3-water (control). Immersions were performed for 30 s, 2x/day, for 21 days. Ra and coordinates of luminosity (L*) and color (a* and b*) were measured using a rugosimeter (SJ-201 P/M) and a spectrophotometer (SP62S), respectively, at: T0-start, T1-7 days, T2-14 days and T3-21 days. Results: L1 (1.3±0.9) presented higher Ra than L3 (0.7±0.6) and L2 (1.0±0.8); and Ra for S2 (0.9±0.1) was greater than S3 (-0.1±0.1), and S1 (0.1±0.1). Moreover, L1 (23.3±0.3) presented lower ΔE00 t han L 2 (24.7±0.3) a nd L 3 (25.1±0.3). Conclusion: Ra of the gingiva-colored composite resin tested increased when L1 and S2 were used, although L1-cured specimens also showed the lowest ΔE00.


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Author Biographies

  • Tatiane Cristina Dotta, Universidade de São Paulo

    Department of Dental Materials and Prosthodontics, School of Dentistry, University of São Paulo (USP), Ribeirão Preto, SP, Brazil

  • Leonardo de Pádua Andrade Almeida, Universidade de São Paulo

    Department of Dental Materials and Prosthodontics, School of Dentistry, University of São Paulo (USP), Ribeirão Preto, SP, Brazil

  • Mayara Manfrin Arnez, Universidade de São Paulo

    Department of Dental Materials and Prosthodontics, School of Dentistry, University of São Paulo (USP), Ribeirão Preto, SP, Brazil

  • Raisa Castelo, Universidade de São Paulo

    Department of Dental Materials and Prosthodontics, School of Dentistry, University of São Paulo (USP), Ribeirão Preto, SP, Brazil

  • David Emanuel Ugarte, University National of Concepción

    Department of Rehabilitation, University National of Concepción, School of Dentistry, Concepción, Paraguay.

  • Andréa Cândido dos Reis, Universidade de São Paulo

    Department of Dental Materials and Prosthodontics, School of Dentistry, University of São Paulo (USP), Ribeirão Preto, SP, Brazil

  • Alma Blasida Concepcion Elizaur Benitez Catirse, Universidade de São Paulo

    Department of Dental Materials and Prosthodontics, School of Dentistry, University of São Paulo (USP), Ribeirão Preto, SP, Brazil


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Original Research

How to Cite

Dotta, T. C., Almeida, L. de P. A., Arnez, M. M., Castelo, R., Ugarte, D. E. ., Reis, A. C. dos, & Catirse, A. B. C. E. B. (2021). Effect of light curing unit and antiseptic mouthwashes on the physical properties of gingiva-colored composite resin. Clinical and Laboratorial Research in Dentistry. https://doi.org/10.11606/issn.2357-8041.clrd.2021.180868