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Surface roughness and gloss produced by spiral-shaped wheels in resin composites
Edition: 77 | Number: 3 | Year: 2024

Surface roughness and gloss produced by spiral-shaped wheels in resin composites


Summary

The purpose of the present study was to evaluate the effect of three spiral-shaped wheel polishers: Jota (Jota Swivel - JO), Ultradent (Jiffy - JI) e American Burrs (Twist Gloss - TG) on the surface roughness and gloss of four resin composites with different filler particle systems: Z350 – Z3, Estelite Omega - EO, Brilliant Everglow – EG and Vitra - VI. Specimens produced with the four composite resins (n = 5) were polished with the spiral-shaped wheels using a standardized protocol. The surface roughness (Sa parameter) was evaluated using 3D laser confocal microscopy and gloss (gloss units - GU) using a glossmeter. Data were analyzed with two-factor analysis of variance and Tukey HSD test ( = 0.05). Roughness ranged from 0.22 to 0.55 µm and gloss from 29.7 to 61.5 GU. JO and TG produced the lowest surface roughness and the highest in the four resin composites.


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About Article
Edition 77 | Volume 20 | Number 3
Julho / Setembro | 2024
Eduardo Moreira da Silva
Raphael Vieira Monte Alto
Eduardo Moreira da Silva
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em_silva@id.uff.br
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Figura 1: Gráfico de barras dos valores médios de rugosidade (+DP) de todos os grupos testados. Para cada resina composta, letras diferentes mostram diferença estatística significante (Tukey HSD, p < 0,05). Para cada resina compuesta, letras diferentes muestran una diferencia estadísticamente significativa (Tukey HSD, p < 0,05). Bar chart of the mean roughness values (+SD) of all tested groups. For each composite resin, different letters indicate a statistically significant difference (Tukey HSD, p < 0.05).
Figura 2. Imagens 3DCLM de superfícies de resina composta após o polimento com os espirais. Imágenes 3DCLM de superficies de resina compuesta después del pulido con los espirales.3DCLM images of composite resin surfaces after polishing with the spirals.
Figura 3. Gráfico de barras dos valores médios de brilho (+DP) de todos os grupos testados. Para cada resina composta, letras diferentes mostram diferença estatística significante (Tukey HSD, p < 0,05). Gráfico de barras de los valores medios de brillo (+DE) de todos los grupos probados. Para cada resina compuesta, letras diferentes muestran una diferencia estadísticamente significativa (Tukey HSD, p < 0,05). Bar chart of the mean gloss values (+SD) of all tested groups. For each composite resin, different letters indicate a statistically significant difference (Tukey HSD, p < 0.05).