scholarly journals Evaluation of the Surface Roughness and Microleakage of Dental Composites Exposed to Different Beverages

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 ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Composite Resin ◽  
Artificial Saliva ◽  
Soft Drink ◽  
High Energy ◽  
Dental Composites ◽  
Group A ◽  
Composite Resin Restorations ◽  
The One ◽  
Resin Restorations

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.

Analysis of Roughness and Surface Hardness of a Dental Composite Using Atomic Force Microscopy and Microhardness Testing

2011 ◽  
Vol 17 (3) ◽  
pp. 446-451 ◽  
Author(s):  
Marcos Aurélio Bomfim da Silva ◽  
Aline Barbirato Fardin ◽  
Renata Carvalho Cabral de Vasconcellos ◽  
Lucineide de Melo Santos ◽  
Josealdo Tonholo ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Artificial Saliva ◽  
Soft Drink ◽  
Surface Hardness ◽  
Dental Composite ◽  
Force Microscopy ◽  
Atomic Force ◽  
Group A ◽  
Group B ◽  
Group D

AbstractThe objective of this study was to evaluate the influence of a cola soft drink (CSD) and coffee on the microhardness and surface roughness of composite resin. Fifty cavities were prepared on the vestibular surface of bovine incisors and restored with nanoparticulate resin. The teeth were divided into five groups (n= 10): group A (control), immersion in artificial saliva (AS) for 14 days; group B, immersion in coffee for 15 min (3×/day) for 7 days followed by immersion in AS for another 7 days; group C, immersion in CSD for 15 min (3×/day) for 7 days followed by immersion in AS for another 7 days; group D, immersion in AS for 7 days, immersion in coffee for 15 min (3×/day) for 7 days; group E, immersion in AS for 7 days, immersion in CSD for 15 min (3×/day) for 7 days. After the immersion periods the specimens were analyzed for their microhardness and surface roughness. The data were subjected to analysis of variance (ANOVA) followed byt-test with 5% significance. Group A presented the highest average microhardness and lowest surface roughness, so it was possible to conclude that the consumption of CSD and coffee alters the microhardness and surface roughness of new restorations.

scholarly journals Soft Drink Influence on Margin Integrity in Composite Resin Restorations

2015 ◽  
pp. 135
Author(s):  
Jose Lafuente ◽  
Karol Abad
Keyword(s):  
Composite Resin ◽  
Negative Impact ◽  
Soft Drink ◽  
Soft Drinks ◽  
Complete Loss ◽  
Human Teeth ◽  
Composite Restorations ◽  
Composite Resin Restorations ◽  
Small Change ◽  
Resin Restorations

<p><span>The purpose of this study was to evaluate the effect that certain previously selected soda drinks could have on the integrity of the margins of composite restorations made on 25 human teeth, where the margins were placed both on enamel and dentin. Specimens were divided in different groups (n=5) to be exposed to soft drinks 30 minutes a day for 30 days. Selected drinks were: Coca Cola, Coca Cola Zero, Squirt, Gladiator and water. SEM pictures were taken at the beginning and at the 30 day mark. Data were compared and analyzed using Kruskal-Wallis. Results showed changes in color both in enamel and in dentin, as well as pigmentation of the composite resin qith the use of Coca Cola and Coca Cola Zero. This last one had the biggest negative impact on the margins of the resotrations, both on enamel and dentin, though this canges were not statistically significant. All soft drinks produced some damage to the margins which went from a small change barely detectable, up to a complete loss of integrity, these effects were not statistically significant among drinks. </span></p>

Efficacy of Four Lining Materials in Sandwich Technique to Reduce Microleakage in Class II Composite Resin Restorations

2014 ◽  
Vol 39 (3) ◽  
pp. 256-263 ◽  
Author(s):  
SM Moazzami ◽  
N Sarabi ◽  
H Hajizadeh ◽  
S Majidinia ◽  
Y Li ◽  
...  
Keyword(s):  
Composite Resin ◽  
Class Ii ◽  
Repeated Measurements ◽  
Glass Ionomer ◽  
Sandwich Technique ◽  
Dye Penetration ◽  
Resin Modified Glass Ionomer ◽  
Group A ◽  
Composite Resin Restorations ◽  
Resin Restorations

SUMMARY Objectives The aim of the present study was to evaluate the effect of four different sandwich techniques on gingival microleakage of Class II direct composite resin restorations. Materials and Methods Fifty sound human premolars were selected and randomly divided into five groups (n=10). Class II box only cavities were prepared in one of the proximal surfaces of each tooth with a gingival margin located approximately 0.5 mm below the cemento-enamel junction. Group A (control) was restored incrementally with composite resin (Tetric Ceram). Groups B, C, D, and E were restored with the sandwich technique using a compomer (Compoglass F), flowable composite resin (Tetric Flow), self-cure composite resin (Degufill SC), or resin modified glass ionomer (Fuji II LC), respectively. After thermal-load cycling, the specimens were immersed in 0.5% basic fuschin for 24 hours. Dye penetration (10−1 mm) was detected using a sectioning technique. Data were analyzed with repeated measurements and Duncan test at α=0.05. Results The least amount of microleakage was detected in the incremental group (1.28 ± 0.98). The sandwich technique using resin modified glass ionomer (7.99 ± 9.57) or compomer (4.36 ± 1.78) resulted in significantly more leakage than did the sandwich technique using flowable (1.50 ± 1.97) or self-cure composite (2.26 ± 1.52). Conclusion According to the results of this study, none of the four sandwich technique composite resin restorations used in this study could reduce gingival microleakage to a greater degree than the incremental technique.

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 ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Composite Resin ◽  
T Test ◽  
Arithmetic Means ◽  
Similar Performance ◽  
Dental Polishing ◽  
Composite Resin Restorations ◽  
One Way Anova ◽  
Resin Restorations

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.

Margin quality and microleakage of Class II composite resin restorations

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