Assessment of the surface roughness of a flowable resin subjected to different salivary pH

Authors

  • Marjorie Guissela Amaya-Sanchez Central University of Ecuador, Faculty of Dentistry.
  • Maria Alejandra Cabrera Arias Central University of Ecuador, Faculty of Dentistry.
  • Ana Armas Vega Central University of Ecuador, Faculty of Dentistry.

Keywords:

Artificial saliva, pH, Composite resin, Colorimetry

Abstract

 

            

Objective: To determine the surface roughness and color stability of a nanohybrid resin subjected to different salivary pH at different times. Materials and methods: experimental, comparative, in vitro study, in which 45 discs of EA2 nanohybrid resin (OPALLIS FGM) of 10 mm in diameter and 1 mm in thickness. They were randomly distributed in three groups (n = 15), each of the resin discs was subjected to an evaluation of its roughness by means of a digital roughness meter (TESTER SRT-6200) and color by colorimeter (Tooth Color Comparator). The discs according to their group were immersed in 18ml of artificial saliva modified with citric acid until obtaining saliva of pH 5, 6 and 7 respectively and placed in specific reservoirs maintained at 37 ° C, according to the specifications of the ANSI / ADA n0 standard. 66, after 168 and 504 hours of storage, a second and third evaluation was carried out. For the statistical analysis, the Friedman and Kruskal Wallis tests were used. Results: The three salivary pHs modified the surface roughness of the material used in a more evident way, pH 5, observing an increase in surface roughness with the time of exposure to substances with different pH analyzed (p <0.01), the color showed an evident increase of 4 tones in all the samples. Conclusions: The increase in roughness was proportional with time and inversely proportional with the pH, more evident with pH5. The color evaluation mechanism did not allow obtaining a conclusive data.

 

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Author Biographies

  • Marjorie Guissela Amaya-Sanchez, Central University of Ecuador, Faculty of Dentistry.


    Dentist

  • Maria Alejandra Cabrera Arias, Central University of Ecuador, Faculty of Dentistry.
    Specialist in Pediatric Dentistry. Teacher.

  • Ana Armas Vega, Central University of Ecuador, Faculty of Dentistry.
    Dental Operative PhD. teacher

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Published

2021-01-08

Issue

Section

Artículos Originales/ Original articles

How to Cite

Assessment of the surface roughness of a flowable resin subjected to different salivary pH. (2021). KIRU , 18(2). https://portalrevistas.aulavirtualusmp.pe/index.php/Rev-Kiru0/article/view/2109

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