Evaluation of Finishing/Polishing Techniques on Low-Shrink Posterior Restorative After Mechanical Cycling

Autores

  • Públio Juliana do Carmo State University of Campinas, Piracicaba Dental School, Department of Restorative Dentistry. SP, Brazil
  • Lúcia Trazzi Prieto State University of Campinas, Piracicaba Dental School, Department of Restorative Dentistry. SP, Brazil.
  • Cíntia Tereza Pimenta Araújo State University of Campinas, Department of Dentistry. SP, Brazil. Federal University of Jequitinhonha and Mucuri Valley, Faculty of Sciences of Health. MG, Brazil.
  • Josué Junior Araujo Pierote State University of Campinas, Piracicaba Dental School, Department of Restorative Dentistry. SP, Brazil
  • Débora Alves Nunes Leite Lima State University of Campinas, Piracicaba Dental School, Department of Restorative Dentistry. SP, Brazil
  • Luís Alexandre Maffei Sartini Paulillo State University of Campinas, Piracicaba Dental School, Department of Restorative Dentistry. SP, Brazil.

DOI:

https://doi.org/10.17921/2447-8938.2019v21n1p46-50

Resumo

O objetivo deste estudo foi avaliar a rugosidade superficial de resinas compostas à base silorano e metacrilato submetidas a diferentes técnicas de acabamento/polimento. Foram preparadas 12 amostras de disco de cada resina composta: P90®, Z350® e Carisma, divididas em 12 grupos de acordo com a técnica de acabamento / polimento: sem acabamento / polimento (controle); acabamento com ponta diamantada 1112 FF; acabamento com ponta diamantada 1112 FF associada a Enhance / Pogo; acabamento com ponta diamantada 1112 FF associada a Enhance / Pogo / Polishing / Pastas Poli I e II / Fotogloss. Após as leituras iniciais da rugosidade da superfície, os espécimes foram submetidos a ciclos mecânicos (1.200.000 ciclos) e submetidos imediatamente a leituras de rugosidade final. As medias de rugosidade superfícial foram analisadas estatisticamente por ANOVA e teste de Tukey-Kramer (α = 0,05). As imagens de MEV foram realizadas após o acabamento / polimento e após a ciclagem mecânica. O compósito P90 mostrou valores de rugosidade superficial semelhantes a outros compósitos investigados. Tough, mostrou diferença significativa nas técnicas de acabamento / polimento. O grupo de pontas damantadas apresentou maior rugosidade superficial que diferiu das outras resinas compostas (α <0,05). Enance / Pogo mostrou os menores resultados, que não apresentaram diferença em relação ao grupo de pasta de polimento (α> 0,05). O material restaurador posterior de baixa contração apresentou rugosidade superficial semelhante quando comparado as resinas compostas de dimetacrilato e são restaurações adequadas para região posterior.

Palavras-chave: Dente. Resinas de Silorano.  Propriedades de Superfície.

 

Abstract

The aim of this study was to evaluate the surface roughness of a silorane and methacrylate-based composite resins subjected to different finishing/polishing techniques. Twelve disk specimens were prepared from each composite resin: P90®, Z350® and Charisma, divided into 12 groups according to the finishing/polishing technique: no finishing/polishing (control); finishing with 1112 FF diamond burs; finishing with 1112 FF diamond burs associated to Enhance/Pogo; finishing with 1112 FF diamond burs associated to Enhance/Pogo/Polishing/Poli I and II pastes/Fotogloss. After initial readouts of surface roughness, the specimens were subjected to mechanical cycling (1.200.000 cycles) and immediately subjected to final roughness readouts.  Surface roughness means was statistically analyzed by ANOVA and Tukey-Kramer test (α=0.05). SEM images were realized after finishing/polishing and after mechanical cycling. The P90 composite showed surface roughness values similar to other investigated composites. However, significant difference was observed in finishing/polishing techniques. The diamond burs group showed the highest surface roughness differing from the other composite resins (α < 0.05). Enance/Pogo showed the lowest results, which presented no difference compared to the polishing paste group (α > 0.05). The low-shrink posterior restorative showed similar surface roughness when compared to dimethacrylate composite resins and suitable to posterior restorations. 

Keywords: Tooth. Silorane Resins. Surface Properties.

 

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Publicado

2019-03-30

Como Citar

1.
Juliana do Carmo P, Prieto LT, Araújo CTP, Pierote JJA, Lima DANL, Paulillo LAMS. Evaluation of Finishing/Polishing Techniques on Low-Shrink Posterior Restorative After Mechanical Cycling. J. Health Sci. [Internet]. 30º de março de 2019 [citado 8º de maio de 2024];21(1):46-50. Disponível em: https://journalhealthscience.pgsscogna.com.br/JHealthSci/article/view/6097

Edição

v. 21 n. 1 (2019)

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Artigos

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