Surface properties and bacterial adhesion of bulk-fill composite resins

Bilgili, Dilber; Dündar, Ayşe; Barutçugil, Çağatay; Tayfun, Deniz; Özyurt, Özlem Koyuncu

doi:10.1016/j.jdent.2020.103317

Cited by 38 publications

(42 citation statements)

References 37 publications

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“…Recently introduced bulk-fill composite resins include the possibility of applying a thickness of up to 4 to 6mm, while reducing problems related to polymerization depth and polymerization shrinkage shown by conventional composite resins (8). In bulk-fill composite resins, alternative and more reactive photo initiators are used to improve polymerization depth, and to increase the translucency of the material.…”

Section: Introductionmentioning

confidence: 99%

Pre-Heating Effect on the Microhardness and Depth of Cure of Bulk-Fill Composite Resins

Değirmenci

Can

2021

Odovtos - Int J Dent Sc

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OBJECTIVE: The aim of this study was to investigate the effect of preheating three bulk-fill and one conventional composite resin on the Vickers microhardness and depth of cure of these composites. METHODS: In this study, three bulk-fill composites-SDR Plus (SDR), Estelite BULK FILL Flow (EST), Admira® Fusion x-tra (AFX), and one conventional composite resin G-ænial POSTERIOR (GP) were used as the control group. The samples were obtained at room temperature (24°C) and at 55°C in T2 mode after being placed in a heating device for 10 minutes. The samples were divided into eight groups (n=10) according to the type of material and heating process that was utilized (preheated and nonheated). All samples were tested with a Vickers microhardness (VHN) tester on the bottom and top surfaces. The first measurements were obtained at baseline; the second set of measurements was performed after the samples were stored in distilled water at 37°C for 24 hours. The depth of cure was calculated using a bottom/top hardness ratio of measurements. Statistical analysis was performed utilizing the SPSS V23 and Shapiro-Wilk tests. Lastly, the Duncan test was used for multiple comparisons (p<0.05). RESULTS: While the VHN increased after the preheating procedure in bulk-fill composites, it decreased in GP. There was no difference between the baseline and the 24-hour VHN values in SDR and GP. After 24 hours, while the VHN of EST increased, the VHN of AFX decreased. There was no difference between the hardness ratios of the AFX and EST samples (p<0.001) and hardness ratios were greater than GP and SDR. CONCLUSION: When comparing the baseline and the 24-hour values, the VHN depended on the type of materials. Sufficient curing depth was obtained in all groups with a thickness of 2mm.

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Section: Introductionmentioning

confidence: 99%

Pre-Heating Effect on the Microhardness and Depth of Cure of Bulk-Fill Composite Resins

Değirmenci

Can

2021

Odovtos - Int J Dent Sc

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“…Besides, SFE of the CD was found higher than GCK and SB. Different results have been reported in scientific researches in terms of the relationship between SFE and bacterial adhesion (Bilgili et al, 2020;Busscher, Rinastiti, Siswomihardjo, & van der Mei, 2010;Hahnel et al, 2017;Ionescu et al, 2015). In some studies on this topic, it was emphasized that the relationship between SFE and biofilm formation is weak (Hahnel et al, 2017;Ionescu et al, 2015).…”

Section: Discussionmentioning

confidence: 98%

Evaluation of surface characteristic and bacterial adhesion of low‐shrinkage resin composites

Can

Dündar

Barutçugil

et al. 2021

Microscopy Res & Technique

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This study aimed to examine the surface characteristics of low shrinkage composites and adhesion of Streptococcus mutans and Streptococcus mitis to these materials.Control material (glass) and three low shrinkage composites (Charisma Diamond, Kalore GC, Beatiful II LS) were used. After polishing procedure was applied to composite specimens, surface roughness (SR), surface free energy (SFE), and contact angle measurements were performed. Surfaces of composite were analyzed using scanning electron microscope and energy-dispersive X-ray spectroscopy. After pellicle formation with artificial saliva, S. mutans and S. mitis biofilms were incubated in 5% CO 2 for 24 h at 37 C and were analyzed using confocal laser scanning microscopy. The lowest SR and highest SFE values were found in the control group. While the contact angle of control was statistically lower than composites, statistically difference was not found between composite groups. S. mutans adhesion of composites was significantly lower than control group, but there was no significant difference between composites. S. mitis adhesion of all groups was statistically similar. SR did not affect the S. mutans and S. mitis adhesion. Less adherence of S. mutans to low shrinkage composites was associated with low SFE and high contact angle values.Even though the highest SR was observed in the Charisma Diamond, no difference was found between the composites in terms of bacterial adhesion.

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“…Dessa forma tem-se o surgimento das resinas Bulk Fill que apresentam a técnica de incremento único ou de maior volume, com incrementos de até 5 mm de espessura 4 .…”

Section: Introductionunclassified

“…Viabiliza-se assim, suas características de baixa contração de polimerização, maior translucidez, obtida através da porcentagem reduzida de partículas inorgânicas (44-55% em volume) e maior quantidade de matriz orgânica, levando a maior escoamento proporcionando facilidade de manipulação e menor tempo clínico 4 . Outra vantagem apresentada por essa resina é que durante a polimerização, apresenta contração volumétrica com menor estresse na interface 5 .…”

Section: Introductionunclassified

“…Entretanto, mesmo com esta variedade de sistemas de acabamento e polimento, ainda não se tem um protocolo definido para as resinas Bulk Fill. E como essas resinas apresentam composição diferente das resinas compostas convencionais, não se sabe qual sistema de acabamento e polimento promove um melhor resultado 4 . Portanto o objetivo desse estudo é avaliar a topografia de superfície em dois tipos de resinas compostas, uma convencional e uma do tipo Bulk Fill após diferentes tipos de sistemas de acabamento e polimento.…”

Section: Introductionunclassified

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Efeito Do Acabamento E Polimento Sobre a Topografia Superficial De Uma Resina Composta Convencional E Uma Bulk Fill

Bessa

2021

REV. CIÊNC. PLURAL

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Introdução: Os compostos resinosos são materiais bastante presentes no dia a dia da clínica odontológica. Apesar de suas vantagens e ótimas propriedades, as resinas compostas convencionais ainda apresentam limitações, como o maior tempo clínico e falhas na adesão. Dessa forma tem-se o surgimento das resinas Bulk-Fill que entre as suas vantagens e propriedades temos: menor tempo clínico, baixa contração de polimerização, maior translucidez, além de propriedades que levam a sua melhor manipulação, tempo clínico e topografia superficial. Objetivo: Avaliar a topografia superficial de restaurações realizadas com diferentes tipos de resina composta antes e após submetê-las a diferentes sistemas de acabamento e polimento. Metodologia: Foram confeccionados 100 corpos de prova (CP), sendo 50 de cada composto resinoso, apresentando cinco grupos (n=10) sorteados de forma aleatória, de acordo com o sistema de acabamento e polimento (AP) empregado. Foram utilizadas as resinas Filtek Z350 XT (3M ESPE, St. Paul, MN, EUA) e a Bulk Fill Filtek One Bulk Fill (3M ESPE, St. Paul, MN, EUA) e os sistemas de acabamento e polimento: Discos de Lixa Sof-Lex Pop On Kit (DL); Discos Diamantado Espiral Sof-Lex (DE); Ponta Enhance (PE) e Broca Carbide Multilaminada nº 0283F (BM), que foram comparados com superfície deixada pela Tira de Poliester (Controle Negativo – CN). Após 7 dias de armazenamento em água destilada, os CP foram submetidos a análise da superfície por meio do Microscópio Eletrônico de Varredura (MEV). Resultados: Os CP da resina Bulk Fill tiveram como melhor resultado o sistema de AP com BM e resultado não satisfatório com DE, enquanto o PE e DL tiveram resultados semelhantes. Os CP da resina Filtek Z350 XT tiveram melhor aspecto visual de lisura superficial no grupo CN e pior resultado no grupo com DE. Conclusões: Dessa forma, o sistema que apresentou melhor resultado foi com a BM na resina Bulk Fill, enquanto a Filtek Z350 XT apresentou-se melhor no grupo C. Porém, ainda são necessários mais estudos que possam levar em considerações outras variações na metodologia empregada para se chegar em um protocolo de acabamento e polimento mais eficiente.

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Surface properties and bacterial adhesion of bulk-fill composite resins

Cited by 38 publications

References 37 publications

Pre-Heating Effect on the Microhardness and Depth of Cure of Bulk-Fill Composite Resins

Pre-Heating Effect on the Microhardness and Depth of Cure of Bulk-Fill Composite Resins

Evaluation of surface characteristic and bacterial adhesion of low‐shrinkage resin composites

Efeito Do Acabamento E Polimento Sobre a Topografia Superficial De Uma Resina Composta Convencional E Uma Bulk Fill

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