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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.)

Assessment of current adhesives in class I cavity: Nondestructive imaging using optical coherence tomography and microtensile bond strength

Texto completo
Autor(es):
Makishi, Patricia [1] ; Thitthaweerat, Suppason [2] ; Sadr, Alireza [3] ; Shimada, Yasushi [4] ; Martins, Adriano Luis [5, 6] ; Tagami, Junji [4] ; Giannini, Marcelo [7]
Número total de Autores: 7
Afiliação do(s) autor(es):
[1] Univ Estadual Campinas, Dent Mat Div, Dept Restorat Dent, Piracicaba Dent Sch, BR-13414903 Piracicaba, SP - Brazil
[2] Mahidol Univ, Fac Dent, Dept Operat Dent & Endodont, Bangkok 10700 - Thailand
[3] Univ Washington, Sch Dent, Dept Restorat Dent, Seattle, WA 98195 - USA
[4] Tokyo Med & Dent Univ, Cariol & Operat Dent, Dept Restorat Sci, Tokyo - Japan
[5] Univ Estadual Campinas, Piracicaba Dent Sch, Dept Oral Diag, BR-13414903 Piracicaba, SP - Brazil
[6] Univ Estadual Campinas, Piracicaba Dent Sch, Dept Morphol, Microscopy & Image Ctr, BR-13414903 Piracicaba, SP - Brazil
[7] Univ Estadual Campinas, Piracicaba Dent Sch, Operat Dent Div, Dept Restorat Dent, BR-13414903 Piracicaba, SP - Brazil
Número total de Afiliações: 7
Tipo de documento: Artigo Científico
Fonte: Dental Materials; v. 31, n. 9, p. E190-E200, SEP 2015.
Citações Web of Science: 12
Resumo

Objectives. To evaluate the sealing ability and the microtensile bond strength (MTBS) of different adhesive systems bonded to dentin in class I cavities. Methods. Round tapered dentin cavities (3-mm diameter, 1.5-mm height) prepared in extracted human molars were restored using composite resin (Clearfil Majesty Posterior) with two-step etch-and-rinse adhesive system (Adper Single Bond 2: ASB2), two-step self-etch adhesive (Clearfil SE Bond: CSEB), all-in-one adhesives (G-Bond Plus: GBP; Tri-S Bond Plus: TSBP), or no adhesive (Control), or bonded using low-shrinkage composite with its proper adhesive (Filtek Silorane, Silorane Adhesive System: FSS). After 24-h water storage or 10,000 cycles of thermal stress, the specimens were immersed into a contrast agent. Two and three-dimensional images were obtained using optical coherence tomography (OCT). The mean percentage of high brightness (HB%) at the interfacial zone in cross-sectional images was calculated as an indicator of contrast agent or gap at the interface. The specimens were then sectioned into beams and the MTBS measured. Results. The HB% (ASB2 = TSBP = CSEB < FSS = GBP) and MTBS (CSEB = ASB2, CSEB > TSBP = GBP = FSS, ASB2 > FSS) differed significantly among the adhesives. After aging, HB% increased for GBP and FSS specimens, and the MTBS decreased for FSS specimens (ANOVA, Tukey's post hoc, p < 0.05). The HB% and MTBS were significantly and negatively correlated (p = 0.002). Confocal laser scanning and scanning electron micrographs confirmed contrast agent infiltration within the gap. Signficance. There was a significant correlation between sealing performance and bond strength of the adhesives in the whole cavity. After aging, the two-step systems showed equal or superior performance to the all-in-one and Silorane systems. (C) 2015 Academy of Dental Materials. Published by Elsevier Ltd. All rights reserved. (AU)

Processo FAPESP: 11/22093-5 - Avaliação da resistência de união adesivo/dentina, interface de união e adaptação marginal tridimensional de sistemas restauradores em cavidade Classe I
Beneficiário:Patricia Makishi
Linha de fomento: Bolsas no Brasil - Pós-Doutorado
Processo FAPESP: 12/18583-0 - Avaliação da adaptação marginal bidimensional e tridimensional de diferentes sistemas restauradores em cavidade classe I
Beneficiário:Patricia Makishi
Linha de fomento: Bolsas no Exterior - Estágio de Pesquisa - Pós-Doutorado