Advanced search
Start date
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

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

Full text
Makishi, Patricia [1] ; Thitthaweerat, Suppason [2] ; Sadr, Alireza [3] ; Shimada, Yasushi [4] ; Martins, Adriano Luis [5, 6] ; Tagami, Junji [4] ; Giannini, Marcelo [7]
Total Authors: 7
[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
Total Affiliations: 7
Document type: Journal article
Source: Dental Materials; v. 31, n. 9, p. E190-E200, SEP 2015.
Web of Science Citations: 12

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)

FAPESP's process: 11/22093-5 - Evaluation of adhesive/dentin interface, 2D and 3D imaging of marginal adaptation of Class I composite restorations and their bond-strength
Grantee:Patricia Makishi
Support type: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 12/18583-0 - Evaluation of adhesive-dentin interface, 2D and 3D imaging of marginal adaptation of class I composite restorations
Grantee:Patricia Makishi
Support type: Scholarships abroad - Research Internship - Post-doctor