Influence of Filler Content and Gap Dimension on Wear Resistance of Resin Composite Luting Cements around a CAD/CAM Ceramic Inlay Restoration.

Purpose The purpose of this study is to examine the fretting wear property of ultra-high molecular weight polyethylene (UHMWPE)-based composites reinforced by different content of attapulgite. Design/methodology/approach A series of composites were prepared by a hot-pressing method. Fretting tests were carried out using an SRV-IV oscillating reciprocating friction wear tester with a load of 10 N and a frequency of 100 Hz. The morphology of the fracture structure and the worn surface was observed by field-emission scanning electron microscopy, X-ray diffraction and a non-contact three dimensional surface profiler. Findings With the addition of attapulgite, the microstructure of the composites become more regular, and their heat resistance improved. Furthermore, the friction coefficient and the specific wear rate of the composites with lower filler content reduced compared with that of neat UHMWPE, and the optimum filler content is 1 per cent. Originality/value The study investigated the fretting resistance mechanism of the attapulgite in the UHMWPE matrix. The results could help to provide some experimental evidence for the broader application of silicates on the fretting wear resistance of polymers. Peer review The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-10-2019-0420/

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Viscoelastic stability of pre-cured resin-composite CAD/CAM structures

Dental Materials ◽

10.1016/j.dental.2019.05.007 ◽

2019 ◽

Vol 35 (8) ◽

pp. 1166-1172 ◽

Cited By ~ 3

Author(s):

Rasha A. Alamoush ◽

Julian D. Satterthwaite ◽

Nick Silikas ◽

D.C. Watts

Keyword(s):

Resin Composite ◽

Cad Cam

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Avaliação in vitro da resistência de duas resinas compostas submetidas a teste de compressão

ARCHIVES OF HEALTH INVESTIGATION ◽

10.21270/archi.v8i9.3245 ◽

2020 ◽

Vol 8 (9) ◽

Author(s):

Mirla Lays Dantas de Almeida ◽

Gymenna Maria Tenório Guênes ◽

Luanna Abílio Diniz Melquiades de Medeiros ◽

Mylena de Araújo Régis ◽

Marcus Vinícius Lia Fook ◽

...

Keyword(s):

Filler Content ◽

State Of The Art ◽

Resin Composite ◽

Dental Materials ◽

Santa Cruz ◽

Porto Alegre ◽

Composite State ◽

Fernando Pessoa ◽

Dent Assoc

Introdução: O aumento da demanda pela odontologia estética guiou o desenvolvimento de resinas compostas com melhores propriedades físicas e mecânicas. Por isso, percebe-se que há atualmente disponibilidade de uma grande variedade desse material. Dessa forma faz-se necessário a realização de estudos científicos acerca das resinas composta. Objetivo: Avaliar comparativamente, in vitro, à resistência de duas resinas compostas fotopolimerizáveis encontrados no mercado: a Filtek Z350 XT da 3M e a Zirconfill da Technw, após teste mecânico de compressão e análise estatística dos resultados. Material e método: Quatro amostras de cada resina composta foram submetidas ao teste de resistência à compressão numa máquina de ensaio universal. Os resultados foram analisados estatisticamente através do teste de Mann-Whitney com margem de erro 5.0%. Para digitar os dados e obter os cálculos estatísticos foi utilizado o programa IBM SPSS na versão 23. Resultados: A média da força foi mais elevada na resina Zirconfill do que na resina Z350; entretanto, a mediana foi mais elevada na resina Z350. Para a margem de erro fixada (5,0%) não há comprovação de diferença significativa (p > 0,05) entre as duas resinas em relação à força de resistência analisada. Conclusão: As resinas compostas testadas mostram valores de resistência a compressão semelhantes e não apresentam diferenças relevantes.Descritores: Resinas Compostas; Nanotecnologia; Odontologia.ReferênciasBowen RL. Use of epoxy resins in restorative materials. J Dent Res. 1956;35(3):360-69.Chagas LS. Avaliação da resistência flexural e módulo de elasticidade de uma resina do tipo Bulk Fill em comparação com uma resina convencional [monografia de conclusão de curso]. Santa Cruz do Sul: Universidade de Santa Cruz do Sul - UNISC; 2016.Behr M, Proff P, Kollbeck C, Langriegr S, Kunze J, Handel G et al. The bond strength of the resin-to-zirconia interface using diferente bonding concepts. J Mech Behav Biomed Mater. 2011;4(1):2-8.Rodrigues DS. Análise da porosidade, resistência mecânica e desgaste de cimentos de ionômero de vidro e resina composta [dissertação]. Porto: Faculdade de Ciências da Saúde, Universidade Fernando Pessoa; 2014.Pereira AFV, Miranda Junior WG. Avaliação in vitro da microinfiltração e adaptação marginal em restaurações classe v simulando lesões de abfração: estudo piloto. Arq Cent Estud Curso Odontol Univ Fed Minas Gerais. 2008;44(2):18-25.Ferracane JL. Resin composite – state of the art. Dent Mater. 2011; 27(1):29-38.Han JM, Lin H, Zheng G, Shinya A, Gomi H, Shinya A et al. Effect of nanofiller on wear resistance and surface roughness of resin composites. Chin J Dent Res. 2012;15(1):41-7.Mitra SB, Wu D, Holmes B. An application of nanotechnology in advanced dental materials. J Am Dent Assoc. 2003;134(10):1382-90.Mota EG, Weiss A, Spohr AM, Oshima HMS, Carvalho LMN. Relationship between filler content and selected mechanical properties of six microhybrid composites. Rev odonto cienc. 2011;26(2):151-55.Rosa RS. Propriedades mecânicas de resinas compostas com nanopartículas [tese]. Porto Alegre: Pontifícia Universidade Católica do Rio Grande do Sul, Faculdade de Odontologia; 2010.Souza ALT, Oliveira FMMPC, Moysés MR, Assis CPD, Ribeiro JCR, Dias SC. Avaliação da resistência à compressão de resinas compostas fotopolimerizáveis. Arq Odontol. 2007;43(1):30-5.

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Effects of Immediate and Delayed Cementations for CAD/CAM Resin Block after Alumina Air Abrasion on Adhesion to Newly Developed Resin Cement

Materials ◽

10.3390/ma14227058 ◽

2021 ◽

Vol 14 (22) ◽

pp. 7058

Author(s):

Akane Chin ◽

Masaomi Ikeda ◽

Tomohiro Takagaki ◽

Toru Nikaido ◽

Alireza Sadr ◽

...

Keyword(s):

Bond Strength ◽

Water Sorption ◽

Resin Composite ◽

Resin Cement ◽

Air Abrasion ◽

Resin Cements ◽

Significant Difference ◽

Computer Aided ◽

Cad Cam ◽

Curing Methods

The purpose of this study was to evaluate the effect of one week of Computer-aided design/Computer-aided manufacturing (CAD/CAM) crown storage on the μTBS between resin cement and CAD/CAM resin composite blocks. The micro-tensile bond strength (μTBS) test groups were divided into 4 conditions. There are two types of CAD/CAM resin composite blocks, namely A block and P block (KATANA Avencia Block and KATANA Avencia P Block, Kuraray Noritake Dental, Tokyo, Japan) and two types of resin cements. Additionally, there are two curing methods (light cure and chemical cure) prior to the μTBS test—Immediate: cementation was performed immediately; Delay: cementation was conducted after one week of storage in air under laboratory conditions. The effect of Immediate and Delayed cementations were evaluated by a μTBS test, surface roughness measurements, light intensity measurements, water sorption measurements and Scanning electron microscope/Energy dispersive X-ray spectrometry (SEM/EDS) analysis. From the results of the μTBS test, we found that Delayed cementation showed significantly lower bond strength than that of Immediate cementation for both resin cements and both curing methods using A block. There was no significant difference between the two types of resin cements or two curing methods. Furthermore, water sorption of A block was significantly higher than that of P block. Within the limitations of this study, alumina air abrasion of CAD/CAM resin composite restorations should be performed immediately before bonding at the chairside to minimize the effect of humidity on bonding.

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Ceramic inlay movement during polymerization of resin luting cements

European Journal Of Oral Sciences ◽

10.1111/j.1600-0722.1995.tb00023.x ◽

1995 ◽

Vol 103 (3) ◽

pp. 186-189 ◽

Cited By ~ 7

Author(s):

John A. Sorensen ◽

Erik Christian Munksgaard

Keyword(s):

Luting Cements ◽

Ceramic Inlay

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Adhesion procedures for CAD/CAM indirect resin composite block: A new resin primer versus a conventional silanizing agent

Journal of Prosthodontic Research ◽

10.1016/j.jpor.2019.09.004 ◽

2020 ◽

Vol 64 (3) ◽

pp. 319-325

Author(s):

Ryosuke Hagino ◽

Atsushi Mine ◽

Asuka Kawaguchi-Uemura ◽

Yuko Tajiri-Yamada ◽

Masahiro Yumitate ◽

...

Keyword(s):

Resin Composite ◽

Cad Cam

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Microtensile Bond Strength of Cad-Cam and Pressed-Ceramic Inlays to Dentin

European Journal of Dentistry ◽

10.1055/s-0039-1698320 ◽

2007 ◽

Vol 01 (02) ◽

pp. 091-096 ◽

Cited By ~ 3

Author(s):

A Nilgün Öztürk ◽

Özgür İnan ◽

Erkan İnan ◽

Bora Öztürk

Keyword(s):

Bond Strength ◽

Limited Information ◽

Luting Cements ◽

Microtensile Testing ◽

Group I ◽

Luting Cement ◽

Cad Cam ◽

Molar Teeth ◽

Bond Strengths ◽

Group B

ABSTRACTObjectives: CAD-CAM system is popular because of high esthetic and short fabrication time. But, there is limited information available about the microtensile bonding of luting cements to CAD-CAM inlays and to dentin. The aim of this study was to examine the bond strength of CAD-CAM (Cerec 3) and pressed-ceramic (IPS Empress 2) inlays to dentin surface by microtensile testing using two luting cements.Materials and Methods: Standardized mesio-occlusal cavities were made in forty extracted molar teeth. An occlusal reduction of 2 mm was made; the bucco-lingual width of the proximal boxes was 4 mm, the occlusal width 3 mm and the depth of the pulpal and axial walls 2 mm. The proximal boxes were extended 1 mm below the cemento-enamel junction. Teeth were randomly assigned to 2 groups to evaluate the bonding of 2 ceramic systems, Cerec 3 (Group I) and IPS Empress 2 (Group II), to dentin. Each of the 2 groups were further divided into 2 luting cement groups, Panavia F (Group A) and Variolink II (Group B). After cementation, the teeth were sectioned into two 1.2x1.2 mm wide ‘I’ shape sections. The specimens were then subjected to microtensile testing at a crosshead speed of 1 mm/min. Twoway ANOVA and Tukey HSD tests were used to evaluate the results.Results: The mean microtensile bond strengths of Cerec 3 and IPS Empress 2 bonding to dentin with luting agents in MPa were Panavia F (13.98±3.44), Variolink II (14.19±3.12) and Panavia F (15.12±3.15), Variolink II (15.45±3.08) respectively. No significant differences were found among the 2 ceramic systems (P>.05) and 2 luting cements with regard to dentin bond strengths (P>.05).Conlusions: There was no difference found between the dentin bond strength of the Cerec 3 and IPS Empress 2 inlays cemented with two luting cements. (Eur J Dent 2007;2:91-96)

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