Dental Resin Composites with Enhanced Properties Bycommercial Silica Particles as Fillers

Abstract:

To explore the preparation of novel dental resin composites with enhanced properties, two commercial silica particles with sizes of around 1μm and 40 nm were chosen as inorganic fillers, and firstly surface functionalized by 3-methacryloxypropyltrimethoxysilane (γ-MPS) to incorporate cross-linkable vinyl groups onto the surface of fillers. Then the modified fillers were blended with organic monomers, bisphenolAdiglycidyldimethacrylate (Bis-GMA) and triethylene glycol dimethacrylate (TEGDMA), to fabricate the resin compositeswith a three-roll mixer.Resin composites with various weight percentage of fillers and component ratio of microparticle and nanoparticle were prepared. Surface functionalization of silica particles was characterized by fourier transform infrared spectroscopy (FTIR) and thermogravimetric analysis (TGA), and mechanical properties degree of conversion, and depth of cure of the resultant resin composites were investigated byuniversal testing machineand FTIR. The results indicated that surface modification of silica particles was successful and the surface organic contents were 3.29% and 4.34%, respectively. Among the studied resin composites, the resin composite with 75 wt.% silica particles (59 wt.% microparticles and 16 wt.% nanoparticles) presented the highest value of depth of cure (5.52 ± 0.07 mm), and optimum mechanical properties such as flexural strength (149.8 ± 3.3 MPa), flexural modulus (13.8 ± 0.06 GPa), compressive strength (340.6 ± 8.3 MPa) and Vicker’smicrohardness (78.26 ± 2.45 HV). The study of dental resin composites fabricated from commercial silica particles with excellent properties might provide a new sight for realizing the preparation of this kind of dental resin composites in an industrial scale.

• Periodical: Materials Science Forum (Volume 815)
• Pages: 336-341
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.815.336
• Online since: March 2015
• Authors: Shuang Bao, Rui Li Wang, Bin Sun, Xiao Ze Jiang, Mei Fang Zhu*
• Keywords: Commercial Silica Particles, Dental Resin Composites, Filler Content, Inorganic Fillers, Mechanical Properties

References

[1] R.L. Wang, X.Z. Jiang, Q.H. Zhang, B. Sun, M.F. Zhu, Wear behavior of light-cured resin composites with bimodal silicananostructures as fillers, Mater. Sci. Eng. C. 33 (2013)4759-4766.

DOI: 10.1016/j.msec.2013.07.039

[2] K.S. Wilsona, K. Zhang, J.M. Antonucci, Systematic variation of interfacial phase reactivity in dental nanocomposites, Biomaterials. 26 (2005) 5095-5103.

DOI: 10.1016/j.biomaterials.2005.01.008

[3] J.P.V. Nieuwenhuysen, W.D. Hoore, J. Carvalho, Long-term evaluation of extensive restorations in permanent teeth, J. Dent. 31 (2003)395-405.

DOI: 10.1016/s0300-5712(03)00084-8

[4] J.L. Ferracane, Resin composite—State of the art, Dent. Mater. 27 (2011)29-38.

[5] M. Atai, D.C. Watts, Z. Atai, Shrinkage strain-rates of dental resin-monomerand composite systems, Biomaterials. 26 (2005) 5015-5020.

DOI: 10.1016/j.biomaterials.2005.01.022

[6] M. Podgorski, Structure-property relationship in new photo-cured dimethacrylate-based dental resins, Dent. Mater. 28 (2012)398-409.

DOI: 10.1016/j.dental.2011.11.013

[7] I. Sideridou, D.S. Achilias, C. Spyroudi, Water sorption characteristics of light-cured dental resins and composites based on Bis-EMA/PCDMA, Biomaterials. 25 (2004)367-376.

DOI: 10.1016/s0142-9612(03)00529-5

[8] M.H. Chen, Update on Dental Nanocomposites,J. Dent. Res. 6 (2010) 549-560.

[9] N.B. Cramer, J.W. Stansbury, C.N. Bowman, Recent Advances and Developments in Composite dental restorative materials, J. Dent. Res. 4 (2011)402-416.

DOI: 10.1177/0022034510381263

[10] J. Leprince, W.M. Palin, T. Mullier, J. Devaux, J. Vreven, G. Leloup, Investigating filler morphology and mechanical properties of new low-shrinkage resin composite types, J. Oral Rehabil. 37 (2010) 364-376.

DOI: 10.1111/j.1365-2842.2010.02066.x

[11] N. Moszner, S. Klapdohr, Nanotechnology for dental composites, International journal of nanotechnology. 1(2004) 130-156.

DOI: 10.1504/ijnt.2004.003723

[12] S. Beun, T. Glorieux, J. Devaux, G. Leloup, Characterization of nanofilled compared to universal and microfilled composites, Dent. Mater. 23 (2007)51-59.

DOI: 10.1016/j.dental.2005.12.003

[13] C.P. Turssi, J.L. Ferracane, K. Vogel, Filler features and their effects on wear and degree of conversion of particulate dental resin composites, Biomaterials. 26 (2005) 4932-4937.

DOI: 10.1016/j.biomaterials.2005.01.026

[14] F.W. Liu, X.Z. Jiang, S.S. Aldeyab, Q.H. Zhang, M.F. Zhu, Mechanical properties of novel flower-like hydroxyapatite reinforced dental resin composite, Mater. Sci. Eng. C. 33 (2013) 4994-5023.

[15] K. Baroudi, A.M. Saleh, N. Silikas, D.C. Watts, Shrinkage behaviour of flowable resincomposites related to conversion and filler-fraction, J. Dent. 35 (2007) 651-655.

DOI: 10.1016/j.jdent.2007.05.001

[16] M.M. Karabela, I.D. Sideridou, Effect of the structure of silane coupling agent on sorption characteristics of solvents by dental resin-nanocomposites, Dent. Mater. 24 (2008) 1631-1639.

DOI: 10.1016/j.dental.2008.02.021

[17] J.W. Stansbury, S.H. Dickens, Determination of double bond conversion in dental resins by near infrared spectroscopy, Dent. Mater. 17 (2001) 71-79.

DOI: 10.1016/s0109-5641(00)00062-2

[18] R.L. Erickson, W.W. Barkmeier, Curing characteristics of a composite - Part 1: Cure depth relationship to conversion, hardness and radiant exposure, Dent. Mater. 30 (2014) e125-e133.

DOI: 10.1016/j.dental.2014.02.012

[19] S. Beun, T. Glorieux, J. Devaux, J. Vreven, G. Leloup, Characterization of nanofilled compared to universal and microfilled composites, Dent. Mater. 23 (2007) 51-59.

DOI: 10.1016/j.dental.2005.12.003

[20] A.A. Korichi, M. Mouzali, D.C. Watts, Effects of monomer ratios and highly radiopaque fillers on degree of conversion and shrinkage-strain of dental resin composites, Dent. Mater. 25 (2009) 1411-1418.

DOI: 10.1016/j.dental.2009.06.009