Surface roughness, gloss and color change of different composites after exposure to ultimate challenges
Braz. j. oral sci
; 16: e17077, jan.-dez. 2017. ilus
Article
en En
| LILACS, BBO
| ID: biblio-884291
Biblioteca responsable:
BR218.1
ABSTRACT
Aim:
The study aimed to investigate the effect of the association of chemical and mechanical degradation on the surface roughness, gloss and color of nano and microfilled composites.Method:
Disc-shaped specimens (n=10) were prepared for three nanocomposites (Filtek Z350XT, IPS Empress Direct, Charisma Diamond) and three microfilled composites (Estelite Σ Quick, Durafill VS, Renamel). After polishing, baseline surface roughness, gloss and color measurements were obtained. Specimens were submitted subsequently to the following challenges chemical for 1 week (Hydrochloric acid, Coca-Cola and Red Wine) and mechanical (Toothbrushing). Surface roughness and gloss data were analyzed by Kruskal-Wallis followed by Dunn's test. Color difference (ΔE) was analyzed by one-way ANOVA and Tukey test.Results:
The initial data were compared with those after challenges using the Wilcoxon test (p<0.05). All composites showed a significant increase (p<0.05) of surface roughness, after overstress. Filtek Z350 XT and Renamel had the lowest final surface roughness values and roughness increase (p<0.05). The comparative analysis revealed that Estelite Σ Quick and Renamel did not significantly change the gloss after challenges (p=0.185). Filtek Z350 XT and IPS Empress Direct had higher color variations, after the challenges than the other resins (p<0.05).Conclusion:
Chemical and mechanical challenges influence on characteristics of all composites, except for gloss on Estelite Σ Quick and Renamel composites (AU)Palabras clave
Texto completo:
1
Banco de datos:
BBO
/
LILACS
Asunto principal:
Resinas Sintéticas
/
Cepillado Dental
/
Fenómenos Físicos
/
Inmersión
Idioma:
En
Revista:
Braz. j. oral sci
Asunto de la revista:
ODONTOLOGIA
Año:
2017
Tipo del documento:
Article
País de afiliación:
Brasil