Development of 3D printed resin reinforced with modified ZrO2 nanoparticles for long-term provisional dental restorations

被引:95
作者
Aati, Sultan [1 ,2 ]
Akram, Zohaib [1 ]
Ngo, Hien [1 ]
Fawzy, Amr S. [1 ]
机构
[1] Univ Western Australia, UWA Dent Sch, 17 Monash Ave, Nedlands, WA 6009, Australia
[2] King Saud Univ, Coll Appl Med Sci, Dent Hlth Dept, Riyadh 11433, Saudi Arabia
关键词
3D printed resins; Zirconium oxide; Nanoparticles; Nanocomposites; Provisional restorations; MECHANICAL-PROPERTIES; METHACRYLATE); SORPTION;
D O I
10.1016/j.dental.2021.02.010
中图分类号
R78 [口腔科学];
学科分类号
1003 ;
摘要
Objective. To characterize and investigate efficacy of loading functionalized ZrO2-nanoparticles in 3-dimensional (3D) printed acrylate ester-based resin subjected to accelerated aging in artificial saliva. As well as to evaluate the effect of ZrO2-nanoparticle volume fraction addition on mechanical and physical properties of printed composite. Methods. Functionalized ZrO2-nanoparticles were characterized using TEM and Raman spectroscopy. 3D printed dental resin was reinforced, with ZrO2-nanoparticles, in the concentration range (0-5 wt.%). The resulted nanocomposites, in term of structure and physical/mechanical properties were evaluated using different mechanical testing, microscopicand spectroscopic techniques. Results. ZrO2 based nanocomposite was successful and formed composites were more ductile. Degree of conversion was significant at the highest level with blank resin and 1 wt.%. Sorption revealed reduction associated with volume fraction significant to neat resin, however solubility indicated neat and 4 wt.% had the lowest significant dissolution. Vickers represented critical positive correlation with filler content, while nanohardness and elasticity behaved symmetrically and had the maximum strength at 3 wt.% addition. In addition, 3 wt.% showed the highest fracture toughness and modulus. Improvement of flexural strength was significantly linked to filler concentration. Overall properties dramatically were enhanced after 3 months aging in artificial saliva, especially degree of conversion, microhardness, nanoindentation/elasticity, and flexural modulus. However, significant reduction was observed with flexural modulus and fracture toughness. Significance. The outcomes suggest that the newly developed 3D printed nanocomposites modified with ZrO2-nanoparticle have the superior potential and efficacy as long-termprovisional dental restoration materials. (C) 2021 The Academy of Dental Materials. Published by Elsevier Inc. All rights reserved.
引用
收藏
页码:E360 / E374
页数:15
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