Surface roughness of glass ionomer cements indicated for atraumatic restorative treatment (ART)

• Autor(es):

  Silva, Renata Cristiane da (São Paulo State University. Faculty of Dentistry of Araraquara. Department of Pediatric Dentistry and Orthodontics);

  Zuanon, Angela Cristina Cilense (São Paulo State University. Faculty of Dentistry of Araraquara. Department of Pediatric Dentistry and Orthodontics).

• Fonte:

  Brazilian Dental Journal; volume 17, número 2, páginas 106-109. 2006.

• Assuntos:

  glass ionomer cement;

  atraumatic restorative treatment;

  surface roughness.

• Resumo:

  The purpose of this study was to evaluate the surface roughness of four conventional chemically cured glass ionomer cements (Fuji IX, Ketac Molar, Vidrion R and Vitromolar) commonly used in atraumatic restorative treatment (ART) immediately after material preparation. Twenty specimens of each glass ionomer cement were fabricated and surface roughness was measured after material setting. The specimens were further examined under scanning electron microscopy. Data were analyzed statistically by Kruskal-Wallis test and Mann-Whitney test at 5% significance level. Two-by-two comparisons showed statistically significant difference (p<0.05) between all materials, except for Ketac Molar and Vidrion R, which had statically similar results (p>0.05). Regarding their results of surface roughness, the materials can be presented in a crescent order, as follows: Ketac Molar < Vidrion R < Fuji IX < Vitromolar. In conclusion, from the tested glass ionomer cements, Fuji IX, Ketac Molar and Vidrion R presented acceptable surface roughness after setting reaction while Vitromolar showed remarkably higher surface roughness.

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