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

Polymerization shrinkage evaluation in experimental dental composite filled with montmorillonite nanoparticles

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Author(s):
Campos, Luiza M. P. [1] ; Boaro, Leticia C. [2] ; Santos, Tamiris M. R. [1] ; Santos, Vinicius J. [1] ; Grecco-Romano, Rebeca [1] ; Santos, Mariana J. [1] ; Parra, Duclerc F. [1]
Total Authors: 7
Affiliation:
[1] CNEN SP, IPEN, Nucl & Energy Res Inst, Av Prof Lineu Prestes 2242, BR-05508000 Sao Paulo, SP - Brazil
[2] Univ Santo Amaro, Sch Dent, R Prof Eneas Siqueira Neto 340, BR-04829300 Sao Paulo, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY; v. 131, n. 1, p. 771-774, JAN 2018.
Web of Science Citations: 2
Abstract

This study aimed to develop experimental dental restorative composites by the addition of montmorillonite (MMT) nanoparticles in a polymeric matrix-based BisGMA/TEGDMA, to assess the possibility of a different dimensional behavior during the photo-polymerization. The characterization of experimental composites was established with the following analyses: thermal-mechanical analysis (TMA), X-ray diffraction (XRD) and transmission electron microscopy. Data for TMA were analyzed using one-way ANOVA and Tukey test (p < 0.05). It was observed that the experimental composites filled with MMT nanoparticle showed statistically similar polymerization shrinkage values (by TMA analysis) in the concentration of 30% and statistically lower polymerization shrinkage values in the concentration of 50%, compared to composites filled with barium glass (BG-control groups). These results may be related to the interaction polymeric matrix/MMT nanoparticles and the formation of nanocomposites, observed by XRD and TEM analyses. (AU)

FAPESP's process: 16/19254-0 - Synthesis and characterization of hydrogel of poly (N-VINYL-2-PYRROLIDONA) with laponite RD clay to modulate NEOMYCIN/NANO silver drug delivery
Grantee:Vinicius Juvino dos Santos
Support type: Scholarships in Brazil - Master
FAPESP's process: 13/07229-3 - ASSESSMENT OF CLAY MINERAL NANOPARTICLE ADDITION IN BISGMA/TEGMA PHOTO-ACTIVATED POLYMERIC MATRICES FOR DENTISTRY APPLICATION
Grantee:Luiza Mello de Paiva Campos
Support type: Scholarships in Brazil - Post-Doctorate