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Featured researches published by T.R. Aguiar.


Microscopy Research and Technique | 2013

Interfacial ultramorphology evaluation of resin luting cements to dentin: A correlative scanning electron microscopy and transmission electron microscopy analysis

T.R. Aguiar; Paulo Moreira Vermelho; Carolina Bosso André; Marcelo Giannini

The objective of this study was to analyze the dentin‐resin cements interfacial ultramorphologies using two different methods: scanning (SEM) and transmission electron microscopy (TEM). Four commercial products were evaluated: two conventional cementing system (RelyX ARC/Adper™ Scotchbond™ Multi‐Purpose Plus, 3M ESPE and Clearfil Esthetic Cement/DC Bond, Kuraray) and two self‐adhesive resin cements (RelyX Unicem, 3M ESPE and Clearfil SA Cement, Kuraray). Prepolymerized resin disks (Sinfony, 3M ESPE) were cemented on oclusal dentin surfaces of 24 third human molars, simulating the indirect restorations. After 24 h, teeth were sectioned into 0.9‐mm thick slabs and processed for microscopy analyses (SEM or TEM/ n = 3). Qualitative characterization of dentin‐resin cement interface was performed. Hybrid layer formation with long and dense resin tags was observed only for RelyX ARC cementing system. Clearfil Esthetic Cement/DC Bond system revealed few and short resin tags formation, whereas no hybridization and resin tags were detected for self‐adhesive resin cements. Some interfacial regions exhibited that the self‐adhesive resin cements were not bonded to dentin, presenting bubbles or voids at the interfaces. In conclusion, TEM and SEM bonding interface analyses showed ultramorphological variations among resin cements, which are directly related to dental bonding strategies used for each resin cement tested. Microsc. Res. Tech. 76:1234–1239, 2013.


Journal of Prosthetic Dentistry | 2015

The effect of photopolymerization on the degree of conversion, polymerization kinetic, biaxial flexure strength, and modulus of self-adhesive resin cements

T.R. Aguiar; Michele de Oliveira; César A.G. Arrais; Gláucia Maria Bovi Ambrosano; Frederick A. Rueggeberg; Marcelo Giannini


Journal of Prosthetic Dentistry | 2014

Effect of storage times and mechanical load cycling on dentin bond strength of conventional and self-adhesive resin luting cements

T.R. Aguiar; Carolina Bosso André; Lourenço Correr-Sobrinho; César A.G. Arrais; Gláucia Maria Bovi Ambrosano; Marcelo Giannini


Brazilian Oral Research | 2013

Bond strength of self-adhesive resin cements to dry and moist dentin

Carolina Bosso André; T.R. Aguiar; Ana Paula Almeida Ayres; Gláucia Maria Bovi Ambrosano; Marcelo Giannini


RPG. Revista de Pós-Graduação | 2011

Effect of application of metal primers on the bond strength of resin cements to zirconia

Wladimir Franco de Sá Barbosa; Marina Di Francescantonio; T.R. Aguiar; Andrea Nóbrega Cavalcanti; Marcelo Tavares de Oliveira; Marcelo Gianini


Dental Materials | 2010

Bond strength of resin cements to dentin after water storage

T.R. Aguiar; Carolina Bosso André; Lourenço Correr-Sobrinho; Cesar Augusto Galvão Arrais; Gláucia Maria Bovi Ambrosano; Marcelo Giannini


RPG. Revista de Pós-Graduação | 2011

Efeito da aplicação de primers para metal na resistência de união de cimentos resinosos à zircônia

Wladimir Franco de Sá Barbosa; Marina Di Francescantonio; T.R. Aguiar; Andrea Nóbrega Cavalcanti; Marcelo Tavares de Oliveira; Marcelo Gianini


Dental Materials | 2011

Effect of fluorescent agents on degree of conversion of adhesives

A.O. Carvalho; T.R. Aguiar; Cesar Augusto Galvão Arrais; Gláucia Maria Bovi Ambrosano; F.A. Rueggeberg; Marcelo Giannini


Dental Materials | 2011

Activation mode effect on biaxial flexure strength of resin cements

T.R. Aguiar; Carolina Bosso André; A.C. Carvalho; Cesar Augusto Galvão Arrais; F.A. Rueggeberg; Marcelo Giannini


Dental Materials | 2011

Inorganic composition and filler particles morphology of resin cements

T.R. Aguiar; Marina Di Francescantonio; A.K. Bedran-Russo; Marcelo Giannini

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Marcelo Giannini

State University of Campinas

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César A.G. Arrais

Ponta Grossa State University

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Marcelo Gianini

State University of Campinas

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