One of the most important aspects of dental resin composites is the ability to improve mechanical properties by adding reinforcing filler particles. TiO2 nanotubes are expected to improve the physical and mechanical properties of silica micro-filled dental composite. Therefore, TiO2 nanotubes were synthesized using an alkaline hydrothermal process and then functionalized with 3-methacryloxypropyl-trimethoxysilane. TiO2 nanotubes were characterized by scanning and transmission electron microscopies, X-ray diffraction and Fourier transform infrared spectroscopy. Different quantities of TiO2 nanotubes and silica microparticles were reinforced in bisphenol A-glycidyl methacrylate (Bis-GMA) and tri-ethylene glycol dimethacrylate to prepare dental composite samples. Thereafter, the flexural strength and modulus, compressive strength, degree of conversion of monomers, wear resistance and water sorption were utlized to examine the prepared composites. The flexural strength and wear resistance of composites with 3 wt% TiO2 nanotubes significantly increased in comparison with other composites. On the other hand, due to the stability of composite, the water sorption was decreased. Therefore, TiO2 nanotubes reinforcement could be a promising solution for the improvement of mechanical properties in dental composites.
ZhangFXiaYXuL, et al.Surface modification and microstructure of single-walled carbon nanotubes for dental resin-based composites. J Biomed Mater Res B Appl Biomater2008; 86: 90–907.
2.
FerracaneJL. Resin composite – state of the art. Dent Mater2011; 27: 29–38.
3.
TaheriMMAbdul KadirMRShokuhfarT, et al.Fluoridated hydroxyapatite nanorods as novel fillers for improving mechanical properties of dental composite: synthesis and application. Mater Des2015; 82: 119–125.
4.
Olad A. Polymer/clay nanocomposites, advances in diverse industrial application of nanocomposites. London: In Tech, 2011, pp.113–138.
SolgiSShahrezaeeMZamanianA, et al.Sol-gel synthesis and characterization of SiO2-Cao-P2O5-SrO bioactive glass: in vitro study. Key Eng Mater2014; 631: 30–35.
7.
ShahPKStansburyJW. Role of filler and functional group conversion in the evolution of properties in polymeric dental restoratives. Dent Mater2014; 30: 586–593.
8.
Noraihan T, Tuan A, Mohamad D, et al. Synthesis of nanosilica fillers for experimental dental nanocomposites and their characterisations. J Phys Sci 2011; 22: 93–105.
9.
ASM International Handbook Committee. ASM Handbook Volume 21: Composites, Ohio: ASM International, 2001, pp. 1201.
10.
KarabelaMMSideridouID. Synthesis and study of physical properties of dental light-cured nanocomposites using different amounts of a urethane dimethacrylate trialkoxysilane coupling agent. Dent Mater2011; 27: 1144–1152.
11.
ChenTMBrauerGM. Solvent effects on bonding organo-silane to silica surfaces. J Dent Res1982; 61: 1439–1443.
12.
WaclawczykAPostek-StefanskaLPietraszewskaD, et al.TEGDMA and UDMA monomers released from composite dental material polymerized with diode and halogen lamps. Adv Clin Exp Med2018; 4: 469–476.
13.
EkeCErKSegebadeC, et al.Study of filling material of dental composites: an analytical approach using radio-activation. Radiochim Acta2018; 106: 69–77.
14.
KrasnitskiiSTrofimovARadiE, et al.Effect of a rigid toroidal inhomogeneity on the elastic properties of a composite. Mathematics and Mechanics of Solids2018. Epub ahead of print 2018. DOI: 10.1177/1081286518773806.
15.
KhaledSMZMironRJHamiltonDW, et al.Reinforcement of resin based cement with titania nanotubes. Dent Mater2010; 26: 169–178.
16.
ShouhaPSwainMEllakwaA. The effect of fiber aspect ratio and volume loading on the flexural properties of flowable dental composite. Dent Mater2014; 30: 1234–1244.
17.
WangRBaoSLiuF, et al.Wear behavior of light-cured resin composites with bimodal silica nanostructures as fillers. Mater Sci Eng C Mater Biol Appl2013; 33: 4759–4766.
18.
AlsharifSOBin Md AkilHAbbas Abd El-AzizN, et al.Effect of alumina particles loading on the mechanical properties of light-cured dental resin composites. Mater Des2014; 54: 430–435.
19.
WangRHabibEZhuXX. Evaluation of the filler packing structures in dental resin composites: from theory to practice. Dent Mater2018; 34: 1014–1023.
20.
ZhangWChaiYXuX, et al.Rod-shaped hydroxyapatite with mesoporous structure as drug carriers for proteins. Appl Surf Sci2014; 322: 71–77.
21.
LiuFWangRChengY, et al.Polymer grafted hydroxyapatite whisker as a filler for dental composite resin with enhanced physical and mechanical properties. Mater Sci Eng C Mater Biol Appl2013; 33: 4994–5000.
22.
Liu Y, Tan Y, Lei T, et al. Effect of porous glass – ceramic fillers on mechanical properties of light‐cured dental resin composites. Dent Mater 2009; 5: 709–715.
23.
LiXLiuWSunL, et al.Resin composites reinforced by nanoscaled fibers or tubes for dental regeneration. BioMed Res Int2014. DOI: 10.1155/2014/542958.
24.
WangRTaoJYuB, et al.Characterization of multiwalled carbon nanotube-polymethyl methacrylate composite resins as denture base materials. J Prosthet Dent2014; 111: 318–326.
25.
DafarMGrolMWCanhamPB, et al.Reinforcement of flowable dental composites with titanium dioxide nanotubes. Dent Mater2016; 32: 817–826.
26.
Gao Y, Sagi S, Zhang L, et al. Electrospun nano-scaled glass fiber reinforcement of Bis-GMA / TEGDMA dental composites. J Appl Polym Sci 2008; 110: 2063–2070.
27.
KhaledSMZCharpentierPARizkallaAS. Acta biomaterialia synthesis and characterization of poly (methyl methacrylate)-based experimental bone cements reinforced with TiO2–SrO nanotubes. Acta Biomater2010; 6: 3178–3186.
XuHHKWeirMDSunL, et al.Effects of calcium phosphate nanoparticles on Ca-PO4 composite. J Dent Res2007; 86: 378–383.
30.
ChenQZhaoYWuW, et al.Fabrication and evaluation of Bis-GMA/TEGDMA dental resins/composites containing halloysite nanotubes. Dent Mater2012; 28: 1071–1079.
31.
GuoGFanYZhangJ-F, et al.Novel dental composites reinforced with zirconia-silica ceramic nanofibers. Dent Mater2012; 28: 360–368.
32.
Xu HHK, Quinn JB, Giuseppetti AA, et al. Three‐body wear of dental resin composites reinforced with silica‐fused whiskers. Dent Mater 2004; 20: 220–227.
33.
ZhangRGaoL. Effect of peptization on phase transformation of TiO2 nanoparticles. Mater Res Bull2001; 36: 1957–1965.
34.
TanAWPingguan-MurphyBAhmadR, et al.Review of titania nanotubes: fabrication and cellular response. Ceram Int2012; 38: 4421–4435.
35.
YuHYuJChengB, et al.Synthesis, characterization and photocatalytic activity of mesoporous titania nanorod/titanate nanotube composites. J Hazard Mater2007; 147: 581–587.
36.
OuHLoS. Review of titania nanotubes synthesized via the hydrothermal treatment: fabrication, modification, and application. Sep Purif Technol2007; 58: 179–191.
37.
ZhaoJMilanovaMWarmoeskerkenMMCG, et al.Surface modification of TiO2 nanoparticles with silane coupling agents. Colloids Surfaces A Physicochem Eng Asp2012; 413: 273–279.
38.
KhoshnoodNZamanianAMassoudiA. Mussel-inspired surface modification of titania nanotubes as a novel drug delivery system. Mater Sci Eng C2017; 77: 748–754.
39.
ISO 4049. Dentistry – polymer-based filling, restorative and luting materials. ISO 4049:2009. Int Stand; 2009.
40.
Standard test method for wear testing with a pin‐on‐disk apparatus. ASTM Int2011; 5: 1–5.
41.
StalderAFMelchiorTMüllerM, et al.Low-bond axisymmetric drop shape analysis for surface tension and contact angle measurements of sessile drops. Colloids Surfaces A Physicochem Eng Asp2010; 364: 72–81.
42.
ZandinejadAAAtaiMPahlevanA. The effect of ceramic and porous fillers on the mechanical properties of experimental dental composites. Dent Mater2006; 22: 382–387.
43.
FonsecaASQSLabruna MoreiraADde AlbuquerquePPAC, et al.Effect of monomer type on the C[dbnd]C degree of conversion, water sorption and solubility, and color stability of model dental composites. Dent Mater2017; 33: 394–401.
44.
SunJForsterAMJohnsonPM, et al.Improving performance of dental resins by adding titanium dioxide nanoparticles. Dent Mater2011; 27: 972–982.
45.
KarabelaMMSideridouID. Synthesis and study of properties of dental resin composites with different nanosilica particles size. Dent Mater2011; 27: 825–835.
46.
MirsasaaniSSAtaiMMHasani-SadrabadiMM. Photopolymerization of a dental nanocomposite as restorative material using the argon laser. Lasers Med Sci2011; 26: 553–561.
47.
KhaledSMZMironRJHamiltonDW, et al.Reinforcement of resin based cement with titania nanotubes. Dent Mater2010; 26: 169–178.
48.
AtaiMPahlavanAMoinN. Nano-porous thermally sintered nano silica as novel fillers for dental composites. Dent Mater2012; 28: 133–145.
49.
WangRZhangMLiuF, et al.Investigation on the physical-mechanical properties of dental resin composites reinforced with novel bimodal silica nanostructures. Mater Sci Eng C2015; 50: 266–273.
50.
Kim JW, Kim LU and Kim CK. Size control of silica nanoparticles and their surface treatment for fabrication of dental nanocomposites. Biomacromolecules 2007; 8: 215–222.
51.
WangHZhuMLiY, et al.Mechanical properties of dental resin composites by co-filling diatomite and nanosized silica particles. Mater Sci Eng C2011; 31: 600–605.
52.
TianMGaoYLiuY, et al.Bis-GMA/TEGDMA dental composites reinforced with electrospun nylon 6 nanocomposite nanofibers containing highly aligned fibrillar silicate single crystals. Polymer (Guildf)2007; 48: 2720–2728.
53.
WangLLiuYSiW, et al.Friction and wear behaviors of dental ceramics against natural tooth enamel. J Eur Ceram Soc2012; 32: 2599–2606.
54.
KumarSRPatnaikABhatIK. Wear behavior of light-cured dental composite reinforced with silane-treated nanosilica filler. Polym Adv Technol2018; 29: 1394–1403.
55.
GanXCaiZZhangB, et al.Friction and wear behaviors of indirect dental restorative composites. Tribol Lett2012; 46: 75–86.
56.
Abdelbary A. Wear of Polymers and Composites. 1st ed. Sawston, Cambridge: Elsevier, 2015.
57.
Kloosterboer JG, Lijten G and Boots HM. Network formation by chain crosslinking photopolymerization and its applications in electronics. Macromol Symp 1989; 24: 223–230.
58.
Seok KimJWoong ParkHLeeJ-H, et al.Synthesis of a novel isosorbide-based dental material with improved water sorption. Eur Polym J. Epub ahead of print 2018. DOI: 10.1016/J.EURPOLYMJ.2018.10.027.
59.
MaywormCDCamargoSSBastianFL. Influence of artificial saliva on abrasive wear and microhardness of dental composites filled with nanoparticles. J Dent2008; 36: 703–710.
60.
BalaurEMacAkJMTaveiraL, et al.Tailoring the wettability of TiO2 nanotube layers. Electrochem Commun2005; 7: 1066–1070.
61.
BalaurEMacakJMTsuchiyaH, et al.Wetting behaviour of layers of TiO2 nanotubes with different diameters. J Mater Chem2005; 15: 4488–4491.
