Back to Browse Journals » International Journal of Nanomedicine » Volume 9 » Issue 1

Structure–property relationships in hybrid dental nanocomposite resins containing monofunctional and multifunctional polyhedral oligomeric silsesquioxanes

Authors Wang WG, Sun X, Huang L, Gao Y, Ban JH, Shen LJ, Chen JH

Published Date February 2014 Volume 2014:9(1) Pages 841—852

DOI http://dx.doi.org/10.2147/IJN.S56062

Received 16 October 2013, Accepted 28 November 2013, Published 10 February 2014

Weiguo Wang,1,* Xiang Sun,1,* Li Huang,2,* Yu Gao,1 Jinghao Ban,1 Lijuan Shen,1 Jihua Chen1

1Department of Prosthodontics, 2Department of General Dentistry and Emergency, School of Stomatology, Fourth Military Medical University, Xi'an, People's Republic of China

*These authors contributed equally to this work

Abstract: Organic-inorganic hybrid materials, such as polyhedral oligomeric silsesquioxanes (POSS), have the potential to improve the mechanical properties of the methacrylate-based composites and resins used in dentistry. In this article, nanocomposites of methacryl isobutyl POSS (MI-POSS [bears only one methacrylate functional group]) and methacryl POSS (MA-POSS [bears eight methacrylate functional groups]) were investigated to determine the effect of structures on the properties of dental resin. The structures of the POSS-containing networks were determined by scanning electron microscopy, transmission electron microscopy, X-ray diffraction, and Fourier transform infrared spectroscopy. Monofunctional POSS showed a strong tendency toward aggregation and crystallization, while multifunctional POSS showed higher miscibility with the dimethacrylate monomer. The mechanical properties and wear resistance decreased with increasing amounts of MI-POSS, indicating that the MI-POSS agglomerates act as the mechanical weak point in the dental resins. The addition of small amounts of MA-POSS improved the mechanical and shrinkage properties. However, samples with a higher MA-POSS concentration showed lower flexural strength and flexural modulus, indicating that there is a limited range in which the reinforcement properties of MA-POSS can operate. This concentration dependence is attributed to phase separation at higher concentrations of POSS, which affects the structural integrity, and thus, the mechanical and shrinkage properties of the dental resin. Our results show that resin with 3% MA-POSS is a potential candidate for resin-based dental materials.

Keywords: POSS, methacrylate monomer, dental resin, hybrid material, nanocomposite

Download Article [PDF] View Full Text [HTML] 

Creative Commons License This work is published by Dove Medical Press Limited, and licensed under Creative Commons Attribution - Non Commercial (unported, v3.0) License. The full terms of the License are available at http://creativecommons.org/licenses/by-nc/3.0/. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed. Permissions beyond the scope of the License are administered by Dove Medical Press Limited. Information on how to request permission may be found at: http://www.dovepress.com/permissions.php

Readers of this article also read:

Delivery of bone morphogenetic protein-2 and substance P using graphene oxide for bone regeneration

La WG, Jin M, Park S, Yoon HH, Jeong GJ, Bhang SH, Park H, Char K, Kim BS

International Journal of Nanomedicine 2014, 9:107-116

Published Date: 7 May 2014

Nanoscale drug delivery systems and the blood–brain barrier

Alyautdin R, Khalin I, Nafeeza MI, Haron MH, Kuznetsov D

International Journal of Nanomedicine 2014, 9:795-811

Published Date: 7 February 2014

Small-aperture corneal inlay in patients with prior radial keratotomy surgeries

Huseynova T, Kanamori T, Waring GO IV, Tomita M

Clinical Ophthalmology 2013, 7:1937-1940

Published Date: 26 September 2013

Application of 2-octyl-cyanoacrylate for corneal perforation and glaucoma filtering bleb leak

Okabe M, Kitagawa K, Yoshida T, Koike C, Katsumoto T, Fujihara E, Nikaido T

Clinical Ophthalmology 2013, 7:649-653

Published Date: 28 March 2013

Fibrin glue for Gundersen flap surgery

Chung HW, Mehta JS

Clinical Ophthalmology 2013, 7:479-484

Published Date: 6 March 2013

Dendrimers functionalized with membrane-interacting peptides for viral inhibition

Tarallo R, Carberry TP, Falanga A, Vitiello M, Galdiero S, Galdiero M, Weck M

International Journal of Nanomedicine 2013, 8:521-534

Published Date: 5 February 2013

Astigmatism induced by conventional spherical ablation after PRK and LASIK in myopia with astigmatism < 1.00 D

Christiansen SM, Mifflin MD, Edmonds JN, Simpson RG, Moshirfar M

Clinical Ophthalmology 2012, 6:2109-2117

Published Date: 20 December 2012

In vitro biocompatibility of calcined mesoporous silica particles and fetal blood cells

Al Samri MT, Biradar AV, Alsuwaidi AR, Balhaj G, Al-Hammadi S, Shehab S, Al-Salam S, Tariq S, Pramathan T, Benedict S, Asefa T, Souid AK

International Journal of Nanomedicine 2012, 7:3111-3121

Published Date: 3 August 2012