Effects of Different Curing Unites on Bulk Fill Composites

Soygun, Koray

doi:10.23937/2469-5734/1510013

Cited by 4 publications

(4 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In previous studies, it has been shown that bottom surface microhardness levels were lower than those at the top surface in all specimens, regardless of the curing light used 34,35) . In this study, most of the composites did show reduced microhardness at the bottom of the 4 mm specimens compared to the 2 mm specimens, except for XF and AU from bulk-fill restorative resin groups and SDR, XB and FBF from the bulk-fill base resin groups.…”

Section: Discussionmentioning

confidence: 99%

Influence of increment thickness on radiant energy and microhardness of bulk-fill resin composites

et al. 2018

View full text Add to dashboard Cite

Section: Discussionmentioning

confidence: 99%

Influence of increment thickness on radiant energy and microhardness of bulk-fill resin composites

et al. 2018

View full text Add to dashboard Cite

“…Furthermore, the material regains its denser state upon cessation of sound energy, suitable for modelling and contouring [63]. SonicFill can be applied all at once in a 5 mm layer without increasing the polymerization stress [64][65][66]. At the same time, the new material is heavily filled-84% by weight.…”

Section: Discussionmentioning

confidence: 99%

Marginal Adaptation and Micropermeability of Class II Cavities Restored with Three Different Types of Resin Composites—A Comparative Ten-Month In Vitro Study

Yantcheva

2021

Polymers

View full text Add to dashboard Cite

The development of composite materials is subject to the desire to overcome polymerization shrinkage and generated polymerization stress. An indicator characterizing the properties of restorative materials, with specific importance for preventing secondary caries, is the integrity and durability of marginal sealing. It is a reflection of the effects of polymerization shrinkage and generated stress. The present study aimed to evaluate and correlate marginal integrity and micropermeability in second-class cavities restored with three different types of composites, representing different strategies to reduce polymerization shrinkage and stress: nanocomposite, silorane, and bulk-fill composite after a ten-month ageing period. Thirty standardized class ΙΙ cavities were prepared on extracted human molars. Gingival margins were 1 mm apical to the cementoenamel junction. Cavities were randomly divided into three groups, based on the composites used: FiltekUltimate-nanocomposite; Filtek Silorane LS-silorane; SonicFill-bulk-fill composite. All specimens were subjected to thermal cycles after that, dipped in saline for 10-mounds. After ageing, samples were immersed in a 2% methylene blue. Thus prepared, they were covered directly with gold and analyzed on SEM for assessment of marginal seal. When the SEM analysis was completed, the teeth were included into epoxy blocks and cut longitudinally on three slices for each cavity. An assessment of microleakage on stereomicroscope followed. Results were statistically analyzed. For marginal seal evaluation: F.Ultimate and F.Silorane differ statistically with more excellent results than SonicFill for marginal adaptation to the gingival margin, located entirely in the dentin. For microleakage evaluation: F.Ultimate and F.Silorane differ statistically with less microleakage than SonicFill. Based on the results obtained: a strong correlation is found between excellent results for marginal adaptation to the marginal gingival ridge and micropermeability at the direction to the axial wall. We observe a more significant influence of time at the gingival margin of the cavities. There is a significant increase in the presence of marginal fissures (p = 0.001). A significant impact of time (p < 0.000) and of the material (p < 0.000) was found in the analysis of the microleakage.

show abstract

“…4,5 Para garantir a propagação da luz em toda a massa de RC inserida na cavidade, é indicada a técnica incremental, que consiste na inserção e fotoativação de incrementos de RC de, no máximo, 2 mm de espessura. [6][7][8][9] Entretanto a inserção de vários incrementos na restauração de cavidades extensas e profundas em dentes posteriores, além de consumir mais tempo clínico, aumenta a probabilidade de contaminação durante o procedimento, [10][11] de incorporação de bolhas no interior da RC 12 e de detritos entre as camadas de RC. 13 Assim, para simplificar a técnica restauradora e diminuir o tempo clínico, surgiram as RC do tipo bulk fill (BF) ou de preenchimento único.…”

Section: Introductionunclassified

Efeito da técnica de inserção e do tempo de fotoativação na dureza de resinas compostas bulk fill

et al. 2020

View full text Add to dashboard Cite

Objetivos: Avaliar o efeito da técnica de inserção e do tempo de fotoativação na dureza Vickers de resinas compostas bulk fill (RCBF). Materiais e método: RCBF de alta viscosidade Opus Bulk Fill (OBF) e de baixa viscosidade Opus Bulk Fill Flow (OBFF) foram inseridas em matrizes cilíndricas com altura e diâmetro interno de 4 mm, e divididas em seis grupos (G), de acordo com a técnica de inserção (I1 – incremento único de 4 mm e I2 – dois incrementos de 2 mm) e do tempo de fotoativação de cada incremento com irradiância de 1000 mW/cm2 (T1 – 20 segundos e T2 – 40 segundos): G1 – OBFI1T1, G2 – OBFI2T1, G3 – OBFI1T2, G4 – OBFI2T2, G5 – OBFF+OBFI2T1 e G6 – OBFF+OBFI2T2. A dureza foi avaliada na superfície topo e base das amostras. ANOVA dois critérios seguido de pós-teste de Tukey foram utilizados em nível de significância de 5%. Resultados: Não houve diferença na dureza da superfície topo das amostras, independentemente da técnica de inserção e do tempo de fotoativação. Entretanto, na superfície base, houve diferença entre as técnicas de inserção e os tempos de fotoativação, exceto entre G3 e G4. Todas as amostras apresentaram redução significativa de dureza na base em relação ao topo. Conclusão: Pode-se concluir que a fotoativação com menor tempo de exposição deve ser considerada com cautela, pois resultou na redução da dureza na área mais distante da fonte emissora da luz. OBFF apresentou dureza menor que OBF, independentemente do tempo de fotoativação.

show abstract

Effects of Different Curing Unites on Bulk Fill Composites

Cited by 4 publications

References 19 publications

Influence of increment thickness on radiant energy and microhardness of bulk-fill resin composites

Influence of increment thickness on radiant energy and microhardness of bulk-fill resin composites

Marginal Adaptation and Micropermeability of Class II Cavities Restored with Three Different Types of Resin Composites—A Comparative Ten-Month In Vitro Study

Efeito da técnica de inserção e do tempo de fotoativação na dureza de resinas compostas bulk fill

Contact Info

Product

Resources

About