Shear strength evaluation of composite–composite resin associations

Ribeiro, José Carlos Rabelo; Gomes, Pedro Henrique; Moysés, Marcos Ribeiro; Dias, Sérgio Candido; Pereira, Luciano José; Ribeiro, João Gustavo Rabelo

doi:10.1016/j.jdent.2008.01.015

Cited by 13 publications

(13 citation statements)

References 19 publications

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“…The first portion of the CS (6 × 2 mm) was prepared with the aid of components 1, 2, and 3 of a Teflon matrix 8 in a single layer and covered with a polyester strip and glass slide to flatten the surface of the resin. A one-Kg load was placed on the set for 10 s. The glass slide was removed, and the resin was polymerized with the Demetron Optilux 401 device (Demetron/Kerr, Danbury, USA).…”

Section: Methodsmentioning

confidence: 99%

“…8 The insertion and polymerization of the repair followed the same procedures used for the first portion of the CS. The aging of the specimens was carried out in distilled water in a biological incubator at 37 ± 2 °C for 24 h. The control group with eight CSs received no aging or surface treatment.…”

Section: Methodsmentioning

confidence: 99%

“…All 200 specimens were placed in a PVC ring (0.5 inches in diameter) with Jet colorless selfcuring acrylic resin (Clássico, São Paulo, Brazil). 8 The mechanical trials were performed in the EMIC DL2000 universal testing machine (EMIC, São José dos Pinhais, Brazil) with a two-kN load and a 0.5 mm/min crosshead speed. Bond strength in each group was estimated from the final shear strength data obtained based on ISO TR 11405 11 and ISO 4049 12 standards.…”

Section: Methodsmentioning

confidence: 99%

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Effects of different surface treatments and accelerated artificial aging on the bond strength of composite resin repairs

et al. 2011

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Effects of different surface treatments and accelerated artificial aging on the bond strength of composite resin repairs Abstract: The purpose of the present study was to assess the bond strength of composite resin repairs subjected to different surface treatments and accelerated artificial aging. 192 cylindrical samples (CSs) were prepared and divided into 24 groups (n = 8). Half of the CSs were stored in water for 24 h, and the other half were subjected to C-UV accelerated aging for non-metallic specimens. The treatments were phosphoric acid + silane + adhesive (PSA); phosphoric acid + adhesive (PA); diamond bur + phosphoric acid + silane + adhesive (DPSA); diamond bur + phosphoric acid + adhesive (DPA); air abrasion + phosphoric acid + silane + adhesive (APSA); and air abrasion + phosphoric acid + adhesive (APA). The repair was performed and the specimens were again aged as described above. A control group (n = 8) was established and did not receive any type of aging or surface treatment. The specimens were loaded to failure in shear mode with a crosshead speed of 0.5 mm/min until fracture. Data were analyzed by one-way ANOVA/Tukey's test (p < 0.05). No statistically significant differences were found among DPSA, DPA, APSA, APA, and the control group. The aged PSA and PA achieved low bonding values and were statistically different from the control group, whereas the nonaged PSA and PA presented no statistically significant difference from the control group. Repairs with the proposed surface treatments were viable on both recent and aged restorations; however, phosphoric acid + adhesive alone were effective only on recent restorations.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Effects of different surface treatments and accelerated artificial aging on the bond strength of composite resin repairs

et al. 2011

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“…Different commercial brands have different compositions, and the type of resin seems to be the main factor influencing the bond strength of the repair 3. However, it is noted that the practice of associating composite resins of different compositions is common during the restoration procedure 4. Beyond the vast variety of resins already existing in the market, in recent years, resin composites called “bulk-fill” (BF) that can be inserted into a cavity with larger increments have come to light.…”

Section: Introductionmentioning

confidence: 99%

Shear bond strength of different surface treatments in bulk fill, microhybrid, and nanoparticle repair resins

Tavarez¹,

Júnior²,

Guará³

et al. 2017

CCIDE

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ObjectivesThe purpose of this study was to evaluate the influence of surface treatment and different types of composite resin on the microshear bond strength of repairs.Materials and methodsSeventy-two specimens (n=72) were prepared using a nanoparticle resin and stored in artificial saliva at 37 ± 1°C for 24 h. After this period, the specimens (n=24) were restored with microhybrid resin P60 (3M ESPE), nanoparticle resin Filtek Z350 (3M ESPE), and Bulk Fill Surefil SDR Flow (Dentsply) composite resins. Previously, the surfaces of the samples were treated, forming the following subgroups (n=12): (A) conditioned with 37% phosphoric acid for 30 s, and (B) abrasioned with a diamond tip for 3 s and conditioned with 37% phosphoric acid. In all groups, before insertion of the composite resin, the adhesive system Adper Single Bond 2 was actively applied and photopolymerized for 20 s.ResultsThe microshear test was executed to assess bond strength. Kruskal–Wallis (p<0.05) and Mann–Whitney statistical tests showed significant statistical difference considering that the bulk-fill resin turned out to have a lower bond strength than the conventional nanoparticle and microhybrid composites. With regard to the technique, the roughening with diamond bur followed by the application of phosphoric acid exhibited values higher than the exclusive use of acid.ConclusionThe microshear bond strength of the composite resin repairs varies in accordance with the type of composite resin utilized, and roughening the surface increased the bond strength of these materials.

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“…A resina composta tem passado por um processo de evolução nas últimas décadas, ela geralmente é classificada pelo tamanho de carga que se tem, desde as primeiras resinas feitas na década de 70 que eram as macroparticuladas, com partículas que chegavam a medir ate 50µm, passando pelas resinas compostas de partículas pequenas que mediam de 0,5 a 3µm, depois pelas microparticuladas com partículas de 0,04µm, pelas híbridas com cargas de 0,04 a 14µm e microhibridas com cargas de 0,04 a 5µm, e recentemente pelas nanoparticuladas com partículas de 5 a 100nm 10,11 . Esse material nanoparticulado foi desenvolvido com uma matriz da resina que possui partícu-las nanométricas de sílica tratadas por silano, que são unidas a um nanoaglomerado de zircônia-sílica e tratadas com silano, formando o compósito nanoparticulado [11][12][13] . A nanotecnologia vem sendo usada pelas indústrias de modo geral, para melhorar produtos que já fazem parte do nosso dia a dia e que usamos frequentemente 14 e vêm, cada vez mais, ganhando espaço no mercado odontológico 15 .…”

Section: Introductionunclassified

Rugosidade superficial das resinas compostas: estética e longevidade clínica

Shitsuka

Corrêa

2014

Rev. da Fac. de Odontologia, UPF

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IntroduçãoOs materiais odontológicos vêm sendo utilizados desde tempos antigos na tentativa de restaurar em partes ou por completo as estruturas dentais. Muitos materiais foram eleitos para fazer essa reabilitação, como o ouro, o amálgama, a prata, e, mais recentemente, com as cores mais semelhantes aos dos dentes, as resinas e as porcelanas 1,2 . Nos tempos atuais, a estética vem sendo predominante na escolha dos materiais a serem utilizados, pois os pacientes estão em busca do sorriso perfeito.Consequentemente, o profissional tem que se atualizar para enfrentar essa nova realidade [3][4][5] . Portanto, as indústrias de materiais odontológicos juntamente com pesquisadores estão voltados para essa nova realidade. Dessa forma, os avanços tecnológicos tentaram unir a estética com a durabilidade dos materiais dentários restauradores para que esses tenham condições de cumprir as exigências clíni-cas 4,6 . Com uma grande variedade de cores que conseguem copiar ao máximo os elementos dentais, e com seu baixo custo, as resinas compostas se tornaram o material de preferência pela grande maioria dos dentistas, a qual traz, ainda, a vantagem de não precisar desgastar remanescente dental sadio, pois sua união com o dente é feito por adesividade [6][7][8][9] . Introdução: com os avanços tecnológicos, os pesquisadores e as indústrias odontológicas tentam desenvolver materiais com características que melhorem a estética e ao mesmo tempo a longevidade clínica. Sabe-se que a superfície de um material restaurador influencia diretamente na estética e na sua longevidade clínica, in-

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Shear strength evaluation of composite–composite resin associations

Cited by 13 publications

References 19 publications

Effects of different surface treatments and accelerated artificial aging on the bond strength of composite resin repairs

Effects of different surface treatments and accelerated artificial aging on the bond strength of composite resin repairs

Shear bond strength of different surface treatments in bulk fill, microhybrid, and nanoparticle repair resins

Rugosidade superficial das resinas compostas: estética e longevidade clínica

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