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Revista Estomatológica Herediana
versión impresa ISSN 1019-4355
Resumen
ESTEVES BARATA, Terezinha Jesus et al. Light curing units in the undergraduate dental clinics: 7 years of follow-up. Rev. Estomatol. Herediana [online]. 2021, vol.31, n.1, pp.37-43. ISSN 1019-4355. http://dx.doi.org/10.20453/reh.v31i1.3924.
Objetive:
To monitor the light curing units available at undergraduate dental clinics of a Brazilian Public Higher Education Institution for seven uninterrupted years.
Materials and methods:
In the period between 2011-2017, the quality control of light curing units at the Faculty of Dentistry, Federal University of Goiás, was evaluated by analyzing their state of conservation and power density (mW/cm2). Data obtained were subjected to descriptive statistical analysis and Levene, Shapiro-Wilk, Kruskal-Wallis, Dunn and Chi-square tests (P <0.05).
Results:
Regarding the conservation status of the light curing units, comparatively, there was no statistically significant difference between the years 2012, 2016 and 2017 (p> 0.05). Statistically significant differences were found for power density values between years (p <0.0001). In pairwise comparisons, the power density values for the years 2011 (p <0.01) and 2012 (p <0.05) were statistically different from the years 2015, 2016 and 2017.
Conclusions:
A significant improvement in the state of conservation of light curing units was observed in the initial four years of evaluations, with a decline in the fifth year and stabilization in the last two years. Regarding the power density of the light curing units, a gradual increase was observed in the seven years of study, with stabilization of the results after the fifth year of quality control.
Palabras clave : dental clinics; quality control; polymerization; curing lights dental.