scholarly journals Influence of Finishing/Polishing in Surface Roughness of Conventional Nanocomposites and Bulk-Fill

2021 ◽  
Vol 22 (3) ◽  
pp. 179-184
Author(s):  
Carlos Frederico Bettcher Silva ◽  
Gabriel Batista de Souza ◽  
Luan Miranda Mori ◽  
Ricardo Huver de Jesus ◽  
Jefferson David Melo de Matos ◽  
...  

AbstractThe choice of the best finishing/polishing methods for composite resin restorations is critical to the choice of excellence results related to longer clinical longevity. The objective of the study was to evaluate the influence of finishing and polishing systems on the surface roughness of a Nanoparticulate and Bulk-fill resin. For the research, 40 sample disks were prepared for each composite: single-increment (BF) (Bulk Fill 3M), both 2 mm thick and 10 mm in diameter (FZ) (Filtek Z350, 3M). The specimens were randomly divided into 4 groups with 10 samples each, according to the different materials to which they were subjected to the finishing and polishing protocols: control [C]- diamond tip (FG 4137F, FAVA); [EN] polishing discs (Enhance, Dentsply); [SL] Abrasive discs (Sof-Lex Pop-on, 3M) and [PD] felt disc + Polishing paste (Diamond Excel, FGM). A surface roughness (Ra) was verified with a roughness meter in three different data volumes and calculated as arithmetic means. Data were statistically treated by one way ANOVA followed by test t and student t test. Regardless of the data tested, evidence of the systemic controlling against different systems for polishing control with control (p <0.05). PD presented statistically greater roughness to the EN and SL (p <0.001), these in turn obtained similar performance and presented the lowest values of roughness for both composites (p> 0.05). The different finishing / polishing methods influenced the surface roughness of both composites, observing for Sof-lex and Enhance lower Ra values.Keywords: Nanoparticles. Dental Polishing. Composite Resins.ResumoA escolha dos adequados métodos de acabamento/polimento para restaurações de resina composta é fundamental para obtenção de resultados de excelência, relacionados a maior longevidade clínica. O objetivo desse estudo foi avaliar a influência dos sistemas de acabamento e polimento na rugosidade de superfície das resinas nanoparticuladas convencional e bulk-fill. Para a pesquisa foram confeccionados 40 discos de amostra para cada compósito: Convencional [FZ] (Filtek Z350, 3M) e de incremento único [BF] (Filtek Bulk Fill, 3M), ambas com 2 mm de espessura e 10 mm de diâmetro. Foram divididos aleatoriamente em 4 grupos com 10 amostras cada, de acordo com os diferentes protocolos que receberam, sendo: controle (C) ponta diamantada (FG 4137F, FAVA); (EN) discos de silicone (Enhance, Dentsply); (SL) discos abrasivos (Sof-Lex Pop-on, 3M); (PD) Feltro + Pasta diamantada (Diamond Excel, FGM). A rugosidade de superfície (Ra) foi verificada com um rugosímetro em três leituras de diferentes direções e calculadas as médias aritméticas. Os dados foram tratados estatisticamente pelos testes ANOVA 1 fator seguido pelo teste t e t de student (p<0,05). Independente da resina testada, evidenciou-se diminuição da rugosidade pelos diferentes sistemas de polimento frente ao grupo controle (p<0,05). PD apresentou rugosidade estatisticamente maior à EN e SL (p<0,001), estes últimos que por sua vez obtiveram desempenho semelhante e apresentaram os menores valores de rugosidade para ambos os compósitos (p>0,05). Os diferentes métodos de acabamento/polimento influenciaram na rugosidade de superfície dos dois compósitos testados, observando para Sof-lex e Enhance menores valores de Ra. Palavras-chave: Nanopartículas. Polimento Dentário. Resinas Compostas.

2015 ◽  
Vol 16 (10) ◽  
pp. 800-804
Author(s):  
Mário Alexandre Coelho Sinhoreti ◽  
Marcos Aurélio Bonfim da Silva ◽  
Rafael Pino Vitti ◽  
Rafael Leonardo Xediek Consani ◽  
José Ginaldo da Silva ◽  
...  

ABSTRACT Aim The purpose of this study was to determine the effect of different solutions cola soft drink (CSD) and coffee on roughness and microleakage of composite resin restorations. Materials and methods Sixty bovine incisors were prepared and restored using Filtek Z350 XT (3M/ESPE) nanoparticulate resin. The samples were divided into three groups (n = 20): A (control)-Immersion in artificial saliva (14 days); B: Immersion in coffee (14 days), for 15 minutes (3x/day) and C: Immersion in CSD for 14 days (3x/day). Then the samples were analyzed for microleakage (dye penetration) and surface roughness (atomic force microscope). The one-way analysis of variance (ANOVA) was applied to assess the surface roughness and microleakage. The Tukey's test was set at 0.05. Results Group A (roughness-GAR) presented significantly the lowest average surface roughness. Group C (microleakage- GCM) showed significantly the highest average microleakage. Conclusion It was concluded that CSD and coffee change the surface roughness and increase the microleakage of restorations. Clinical significance Nowadays there is a high consumption of artificially sweetened soft drinks, sports drinks, high-energy beverages and coffee products by people that cause problems in composite resin restorations. How to cite this article da Silva MAB, Vitti RP, Sinhoreti MAC, Consani RLX, da Silva JGJ, Tonholo J. Evaluation of the Surface Roughness and Microleakage of Dental Composites Exposed to Different Beverages. J Contemp Dent Pract 2015;16(10):800-804.


1987 ◽  
Vol 114 (1) ◽  
pp. 49-54 ◽  
Author(s):  
Joo Loon Lui ◽  
Shigeyuki Masutani ◽  
James C. Setcos ◽  
Felix Lutz ◽  
Marjorie L. Swartz ◽  
...  

2012 ◽  
Vol 02 (04) ◽  
pp. 340-347 ◽  
Author(s):  
Carrilho Eunice ◽  
Abrantes Margarida ◽  
Casalta-Lopes João ◽  
Botelho Filomena ◽  
Paula Anabela ◽  
...  

2008 ◽  
Vol 36 (10) ◽  
pp. 828-832 ◽  
Author(s):  
B.A.C. Loomans ◽  
F.J.M. Roeters ◽  
N.J.M. Opdam ◽  
R.H. Kuijs

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