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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Nanomechanical properties of biochemically modified dentin bonded interfaces

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Autor(es):
dos Santos, P. H. [1, 2] ; Karol, S. [3] ; Bedran-Russo, A. K. B. [1]
Número total de Autores: 3
Afiliação do(s) autor(es):
[1] Univ Illinois, Coll Dent, Dept Restorat Dent, Chicago, IL - USA
[2] Sao Paulo State Univ UNESP, Aracatuba Sch Dent, Dept Dent Mat & Prosthodont, BR-16015050 Aracatuba, SP - Brazil
[3] Univ Illinois, Coll Engn, Dept Bioengn, Chicago, IL - USA
Número total de Afiliações: 3
Tipo de documento: Artigo Científico
Fonte: Journal of Oral Rehabilitation; v. 38, n. 7, p. 541-546, JUL 2011.
Citações Web of Science: 19
Resumo

P>The effect of biomodification of dentin matrices using collagen cross-linkers, glutaraldehyde (GD) and grape seed extract (GSE), on the reduced modulus of elasticity (Er) and nanohardness (H) of the hybrid layer and underlying dentin was investigated at the dentin-resin bonded interface. The coronal dentin of nine molars were exposed and divided into groups: 5% GD, 6 center dot 5% GSE and control. Control samples were etched, bonded with Adper Single Bond Plus and Premise composite. GD and GSE were applied for 1 h prior to bonding procedures. After 24 h, samples were sectioned, and resin-dentin beams were either kept in distilled water or exposed to collagenase treatment for 24 h. Nano-indentations were performed at the hybrid layer and underlying dentin. GD and GSE treatment increased the Er and H of resin-dentin interface structures when compared to the control group (P < 0 center dot 05), particularly the hybrid layer, and may be a promising novel approach to strengthen the dentin-resin bonded interface structures when using these adhesive system and resin-based composite. (AU)

Processo FAPESP: 08/03213-7 - Efeito de agentes de ligação cruzada no colágeno no envelhecimento das interfaces restauradoras adesivas: avaliação das propriedades nano-mecânicas
Beneficiário:Paulo Henrique dos Santos
Modalidade de apoio: Bolsas no Exterior - Novas Fronteiras