Does the light source affect the repairability of composite resins?

Karaman, Emel; Gönülol, Nihan

doi:10.1590/1807-3107bor-2014.vol28.0027

Cited by 5 publications

(5 citation statements)

References 20 publications

(23 reference statements)

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“…However, few studies exist in literature on the effect of light devices on the repair bond strength of the composite resin. In one study (22), four different composites (Filtek Silorane, Filtek Z550, Gradia Direct Anterior, Aelite Posterior) were repaired with the same substrate, and QTH (Smart Lite), LED (Elipar FreeLight 2) and PAC (Monitex Plasma Star SP-2000) light curing units were used for polymerization. In contrast to our results, the authors did not find any difference in bond strength among composites repaired with QTH, LED and PAC light sources.…”

Section: Discussionmentioning

confidence: 99%

Effect of Light Sources on Bond Strength of Different Composite Resins Repaired with Bulk-Fill Composite

Kılıç

Hürmüzlü

2020

Odovtos - Int J Dent Sc

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The aim of this study was to evaluate and compare the effects of different light sources on shear bond strength when bulk-fill composite was used for the repair of different composite resins. A total of 126 samples made from six resin composites with different properties were aged (thermal-cycling with 5000 cycle), exposed to the same surface treatments and adhesive procedure. Then, they were repaired with a bulk-fill composite. At the polymerization step, each group was divided into three subgroups (n=7) and light cured with a QTH light source for 40s and two different LED light sources for 20s. Subsequently, the specimens were aged in distilled water at 37 ºC for 4 weeks and then subjected to shear bond strength test. Then, the specimens were examined under a stereomicroscope to identify modes of failure and visualized by Scanning Electron Microscope. Data obtained from the study were analyzed using ANOVA and Tukey HSD Test (α=0.05). In all groups, the light curing units had an impact on shear bond strength (p<0.05). Among the study groups, the greatest bond strength values were observed in the specimens repaired using the LED and the specimens repaired with the QTH light curing unit had the lowest bond strength values. It was concluded that the content of composite resins and light curing units may influence bond strength of different composites repaired with the bulk-fill composite.

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Section: Discussionmentioning

confidence: 99%

Effect of Light Sources on Bond Strength of Different Composite Resins Repaired with Bulk-Fill Composite

Kılıç

Hürmüzlü

2020

Odovtos - Int J Dent Sc

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“…Karaman and Gönülol (2014) 8 fizeram um estudo com o objetivo de examinar o efeito da fonte de luz sobre a resistência de adesão ao microcisalhamento de diferentes resinas compostas reparadas com o mesmo substrato, foi concluído que os compósitos a base de dimetacrilado podem ser reparados com diferentes fontes de luz e que na reparação do compósito a base de silorano, a fonte de luz com arco de plasma de Xenônio (PAC) apresentou os menores valores de resistência de união, as melhores opções para esse composto são as fontes de luz Quartzo-Tungstênio-Halogênio (QTH) ou luz emitida por diodos (LED).…”

Section: Discussionunclassified

“…Deficiências marginais, fratura e desgastes podem levar a formação de cáries secundárias ou sensibilidade dentária [7][8]6 . O tratamento tradicional para esses defeitos é a substituição total das restaurações, (50-71% do exercício de um dentista é a troca total de uma restauração) 2,5,[8][9] esse procedimento amplia o preparo cavitário, removendo tecido dentário sadio, podendo gerar danos pulpares [10][11][12][13] .…”

Section: Introductionunclassified

Reparação Em Resina Composta: Revisão Sistemática

Alencar¹,

Cavalcante²,

Firmino³

et al. 2018

RevBahianaOdonto

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Introdução: A substituição total de restaurações de resina composta é uma das técnicas mais utilizadas por cirurgiões dentistas quando estas restaurações apresentam alguma falha. Essa técnica amplia o preparo cavitário, removendo tecido dentário sadio, podendo gerar danos pulpares. A reparação de resina composta substitui parcialmente a restauração preservando estrutura dental e o substrato remanescente de resina composta. Objetivo: Realizar uma revisão sistemática por meio de estudos que descrevessem a eficácia clínica e laboratorial da reparação em restaurações de resina composta defeituosas. Método: Como base para a pesquisa, foram acessados os bancos de dados PubMed, Scopus, BVS e SciELO, os descritores selecionados através do DesC e MeSH foram, Resinas compostas, Desgaste de restauração dentária, Falha de restauração dentária, Reparação de restauração dentária. Resultados: Foram incluídos todos os artigos que abordassem sobre a técnica de reparação. Conclusão: Existem poucas evidências cientificas que mostrem o sucesso e vantagens desse método sobre a substituição total, porém os estudos analisados já apresentam bons resultados.

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“…There are different light curing units in the dental market, whereas the halogen lamp is the most used. However, despite its common use, such light curing unit presents some deficiencies, such as the limited shelf life of halogen lamps (40-100 hours) and the degradation of components (bulb, reflector, and filter) over time, due to the high temperature reached during the procedures [9].…”

Section: Introductionmentioning

confidence: 99%

Bond strength and marginal microleakage in restorations photopolymerized with LED and halogen light associated with three application modes of a universal adhesive system: in vitro study

Ricardi

Busato

et al. 2019

RGO, Rev. Gaúch. Odontol.

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Objective: This study aimed to assess the bond strength and marginal microleakage in composite resin restorations, using the Single Bond Universal adhesive system associated with Ultralux (halogen) and Bluephase (LED) light curing units. Methods: For bond strength, 80 healthy human third molars were divided into halogen light (n=40) and LED (n=40), and subdivided according to the following application techniques for the adhesive system: etch-and-rinse (enamel), self-etching (enamel), etch-and-rinse (dentin), and self-etching (dentin). The teeth were subjected to the microtensile test and the fracture pattern was observed under an optical microscope at 40X magnification; they were analyzed by ANOVA, and Fisher and Tukey’s tests (5%). For the marginal microleakage test, 120 class II cavities were prepared in 60 healthy human third molars that were randomly divided into halogen light (n=30) and LED (n=30), and subdivided according to the following application techniques for the adhesive system: etch-and-rinse, selective etching, and self-etching. The teeth were thermocycled 2000 times (±5/55°C), stained in 5% basic fuchsin and sectioned for qualitative and quantitative assessments; they were analyzed by Kruskall-Wallis and Dunn tests (5%). Results: For the bond strength of enamel and dentin, the adhesive application with prior acid etching was better than self-etching (p<0.0001), regardless of the type of light curing unit (p<0.05). Etch-and-rinse showed the lowest microleakage values (p<0.0001). Conclusion: Etch-and-rinse obtained the best results relative to the other application techniques for the adhesive system in both tests, regardless of the type of light curing unit.

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Does the light source affect the repairability of composite resins?

Cited by 5 publications

References 20 publications

Effect of Light Sources on Bond Strength of Different Composite Resins Repaired with Bulk-Fill Composite

Effect of Light Sources on Bond Strength of Different Composite Resins Repaired with Bulk-Fill Composite

Reparação Em Resina Composta: Revisão Sistemática

Bond strength and marginal microleakage in restorations photopolymerized with LED and halogen light associated with three application modes of a universal adhesive system: in vitro study

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