Revista de Odontologia da UNESP
https://revodontolunesp.com.br/journal/rou/article/doi/10.1590/1807-2577.04318
Revista de Odontologia da UNESP
Original Article

Avaliação do efeito cromático em resinas compostas nanoparticuladas submetidas a solução café

Two nanoparticulate composite resins chromatic effect evaluation submitted to coffee solution

Ana Paula GADONSKI; Monica FEIBER; Leonardo de ALMEIDA; Fabiana Scarparo NAUFEL; Vera Lucia SCHMITT

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Resumo

Resumo: Introdução: Em uma sociedade de alta competitividade social, os padrões estéticos estão cada vez mais refinados e, dentro destes, a concepção e o desejo de se ter o sorriso perfeito aumentaram consideravelmente a busca pelos tratamentos dentários e, consequentemente, o desenvolvimento de materiais que possam propiciar tais resultados. O sucesso clínico de uma restauração engloba sua longevidade, do ponto de vista funcional, incluindo ausência de infiltrações, e sua função estética, por meio da manutenção de coloração e lisura superficial adequada.

Objetivo: O presente trabalho busca analisar a alteração de cor de duas marcas de compósitos odontológicos nanoparticulados ‒ Z350 e Bulk Fill (3M ESPE) ‒ e dois sistemas de polimento ‒ Disco SofLex e Disco SofLex espiral emborrachado (3M ESPE) ‒, com as subdivisões em grupos controle (água destilada) e experimental (café), em um período de 21 dias.

Material e método: Os espécimes foram confeccionados de modo padronizado e armazenados por sete dias em água deionizada a 37 °C, em estufa para análise da cor inicial, seguido do armazenamento nas respectivas soluções para a análise cromática, ao final do período de estudo, sendo ambas as análises realizadas através de espectrofotômetro (CM-700d, Konica Minolta, Osaka, Japão) e escala ΔE CIELAB.

Resultado: Observou-se que ambas as resinas tiveram sua coloração alterada na presença do café, entretanto a resina Z350 apresentou maiores variações em comparação à Bulk Fill.

Conclusão: Apesar de a solução corante café ser capaz de promover mudança de cor nas resinas estudadas, os sistemas de polimento, isoladamente, não apresentam efeito final sobre a alteração cromática desses materiais restauradores.

Palavras-chave

Café, resinas compostas, pigmentação

Abstract

Abstract: Introduction: In a highly social competitive society, aesthetic standards are increasingly refined as the conception and desire of a perfect smile considerably increased the search for dental treatment, with the developing of materials that could propitiate those results. Restorations clinical success includes its longevity, from the functional point of view, with no infiltrations, and aesthetic, through the color conservation and proper surface smoothness.

Aim: This work analyzes the color change of two nanoparticulate resins: Z350 and Bulk Fill (3M ESPE) and two polishing systems: SofLex Disk and rubber spiral SofLex Disk (3M ESPE), divided in control group (deionized water) and experimental group (coffe), during 21 days.

Material and method: The resin discs were prepared by a standardized mode and submerged in deionized water for 7 days at 37 °C in incubator before initial color evaluation, followed by the immersion in each solution to final color analysis. Both used a spectrophotometer (CM-700d, Konica Minolta, Osaka, Japan) and ΔE CIELAB scale.

Result: It was seen that both resins presented color change when exposed to coffee, however the Z350 resin presented a greater variation compared to Bulk Fill resin.

Conclusion: Although coffee is a dye solution, the polishing systems did not present any effect on chromatic alteration.
 

Keywords

Coffee, composite resins, pigmentation

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