Additive manufacturing (3D-printed) technology is a major advancement in prosthodontics, offering efficiency, cost-effectiveness, and the production of high-quality prostheses. Nanoparticles have been included in three-dimensional (3D) printed denture bases to enhance their physico-mechanical and biological characteristics. This work aims to examine the influences of adding calcium carbonate nanoparticles to 3D-printed denture base resins on their radio-opacity, wettability, and surface roughness.
Material and method
Ninety specimens were split into three groups: two modified groups (1.5 and 2 weight percent CaCO3 NPs) and one control group (unmodified group). Three identical subgroups for the radiopacity test, surface roughness, and wettability test were formed from each concentration (n = 10). Additionally, the chemical composition of the 3D resin was also investigated using Fourier transform infrared spectroscopy (FTIR) to see if the addition of calcium carbonate nanoparticles changed it, and the surface topography of 3D-printed acrylic specimens was compared using atomic force microscopy (AFM).
Result
Results revealed a significant improvement in the radio-opacity, wettability, and surface roughness (p < 0.05) after adding calcium carbonate nanoparticles to the 3D-printed denture base resin.
Conclusion
The specimens with 2% wt. of CaCO3 NPs showed the greatest increase in radio-opacity. While specimens containing 1.5% wt. CaCO3 NPs showed lower surface roughness and higher wettability.
Al-RafeeMA. The epidemiology of edentulism and the associated factors: a literature review. J Family Med Prim Care2020; 9: 1841–1843.
2.
AnadiotiEMusharbashLBlatzMB, et al.3D Printed complete removable dental prostheses: a narrative review. BMC oral Health2020; 20: 43.
3.
DimitrovaMVlahovaAKazakovaR, et al.3D-Printed Vs. Heat-cured denture base materials-composition and properties-A review. Int J Dent Med Sci Res2023; 5: 92–95.
4.
ChhabraMKumarMNRaghavendraSwamyK, et al.Flexural strength and impact strength of heat-cured acrylic and 3D printed denture base resins-A comparative in vitro study. J Oral Biol Craniofac Res2022; 12: 1–3.
5.
Abdul-MonemMMHannoKI. Effect of thermocycling on surface topography and fracture toughness of milled and additively manufactured denture base materials: an in-vitro study. BMC Oral Health2024; 24: 67.
6.
KadhumRNHamadTI. Evaluating the effects of barium titanate nanoparticles on the mechanical properties of 3D-printed acrylic denture base. Proc Instit Mech Eng Part L J Mater Des Appl2025.
7.
OberoiGNitschSEdelmayerM, et al.3D Printing—encompassing the facets of dentistry. Front Bioeng Biotechnol2018; 6: 72.
8.
Perea-LoweryLGibreelMVallittuPK, et al.3D-printed Vs. Heat-polymerizing and autopolymerizing denture base acrylic resins. Materials (Basel)2021; 14: 5781.
9.
MajeedHFHamadTIBairamLR. Enhancing 3D-printed denture base resins: a review of material innovations. Sci Prog2024; 107: 00368504241263484.
10.
MattiePARawlsHRCabassoI. Development of a radiopaque, autopolymerizing dental acrylic resin. J Prosthodont1994; 3: 213–218.
11.
IhabNMoudhaffarM. Evaluation the effect of modified nano-fillers addition on some properties of heat cured acrylic denture base material. J Bagh Coll Dent2011; 23: 23–29.
12.
ElshereksiNWMohamedSHArifinA, et al.Evaluation of the mechanical and radiopacity properties of poly (methyl methacrylate)/barium titanate-denture base composites. Polym Polym Compos2016; 24: 365–374.
13.
JuntaveeNJuntaveeARattanatussaneeK. Flexural strength and radiodensity of different barium sulfate-containing polymethyl methacrylate provisional restorative materials. Eur J Dent2025.
14.
MikaelJAl-SamaraieSIkramF. Evaluation of some properties of acrylic resin denture base reinforced with calcium carbonate nano-particles. Erbil Dent J2018; 1: 41–47.
15.
QuezadaMMSalgadoHCorreiaA, et al.Investigation of the effect of the same polishing protocol on the surface roughness of denture base acrylic resins. Biomedicines2022; 10: 1971.
16.
Nawal AlharbiBReham OsmanB. Does build angle have an influence on the surface roughness of anterior 3D-printed restorations? An in vitro study. Digit Dent Technol2021; 34: 505–510.
17.
Al-DwairiZNAl Haj EbrahimAABabaNZ. A comparison of the surface and mechanical properties of 3D printable denture-base resin material and conventional polymethylmethacrylate (PMMA). J Prosthodont2023; 32: 40–48.
18.
DarvellBClarkR. The physical mechanisms of complete denture retention. Br Dent J2000; 189: 248–252.
19.
PowersJMWatahaJC. Dental Materials-E-Book: Foundations and Applications. St. Louis, Missouri, USA: Elsevier Health Sciences, 2015.
20.
AlshaikhAAKhattarAAlmindilIA, et al.3D-printed Nanocomposite denture-base resins: effect of ZrO2 nanoparticles on the mechanical and surface properties in vitro. Nanomaterials2022; 12: 2451.
21.
AltaraziAJadaanLMcBainAJ, et al.3D-printed Nanocomposite denture base resin: the effect of incorporating TiO2 nanoparticles on the growth of Candida albicans. J Prosthodont2024; 33: 25–34.
22.
KhattarAAlghafliJAMuheefMA, et al.Antibiofilm activity of 3D-printed nanocomposite resin: impact of ZrO2 nanoparticles. Nanomaterials2023; 13: 91.
23.
LinC-HLinY-MLaiY-L, et al.Mechanical properties, accuracy, and cytotoxicity of UV-polymerized 3D printing resins composed of bis-EMA, UDMA, and TEGDMA. J Prosthet Dent2020; 123: 349–354.
24.
Fareed Al-SammraaieMA FatallaA. The effect of ZrO2 nanoparticles addition on candida adherence and tensile strength of 3d printed denture base resin. J Nanostruct2023; 13: 544–552.
25.
ADA. ANSI/ADA Standard No. 57 for Endodontic Sealing Materials - E-BOOK. Chicago, Illinois, USA: American Dental Association, 2000.
26.
International Organization for Standardization. ISO 20795-1:2013: Dentistry — Base polymers Part 1: Denture base polymers. 2013.
27.
Al-DouriMESadoonMM. Flexural strength, hardness and surface roughness of 3D printed denture base resin reinforced by zinc oxide nanoparticles. J Res Med Dent Sci2023; 11: 194–200.
28.
NooriZSAl-KhafajiAMDabaghiF. Effect of tea tree oil on candida adherence and surface roughness of heat cure acrylic resin. J Bagh Coll Dent2023; 35: 46–54.
29.
RamannaPK. Wettability of three denture base materials to human saliva, saliva substitute, and distilled water: a comparative: in vitro: study. J Indian Prosthodont Soc2018; 18: 248–256.
30.
BiradarSRavichandranPGopikrishnanR, et al.Calcium carbonate nanoparticles: synthesis, characterization and biocompatibility. J Nanosci Nanotechnol2011; 11: 6868–6874.
31.
Alifui-SegbayaFBowmanJWhiteAR, et al.Characterization of the double bond conversion of acrylic resins for 3D printing of dental prostheses. Compendium2019; 40: e7–e11.
32.
Perea-LoweryLGibreelMVallittuPK, et al.Evaluation of the mechanical properties and degree of conversion of 3D printed splint material. J Mech Behav Biomed Mater2021; 115: 104254.
33.
SulaimanMMFatallaAAMatheelA-R, et al.Elucidating the impact of incorporating grapefruit skin seed particles into three-dimensional printed denture base resin on Candida Albicans adhesion and surface roughness. J Baghdad Coll Dent2025; 37: 64–77.
34.
ZidanSSilikasNAlhotanA, et al.Investigating the mechanical properties of ZrO2-impregnated PMMA nanocomposite for denture-based applications. Materials (Basel)2019; 12: 1344.
35.
SadoonM. The Effect of Different Nanoparticles Incorporation on Some Properties of Acrylic Based Soft Liner. Ph. D. Dissertation. Mosul University, Dentistry College. Mosul, Iraq, 2021.
36.
Abd AlwahabSMoosaJMMuafaqS. Studying the influence of nano ZnO and nano ZrO2 additives on properties of PMMA denture base. Indian J Public Health Res Dev2020; 11: 2047–2051.
37.
CierechMOsicaIKolendaA, et al.Mechanical and physicochemical properties of newly formed ZnO-PMMA nanocomposites for denture bases. Nanomaterials2018; 8: 05.
38.
GadMMAl-HarbiFAAkhtarS, et al.3D-printable Denture base resin containing SiO2 nanoparticles: an in vitro analysis of mechanical and surface properties. J Prosthodont2022; 31: 784–790.
39.
FoudaSMGadMMAbualsaudR, et al.In vitro evaluation of Candida albicans adhesion and related surface properties of CAD/CAM denture base resins. Eur J Dent2024; 18: 579–586.
40.
Van NoortRBarbourME. Introduction to dental materials-E-book: introduction to dental materials-E-book. Elsevier Health Sciences, St. Louis, Missouri, USA: 2023.
41.
FoudaSMGadMMEllakanyP, et al.Effect of low nanodiamond concentrations and polymerization techniques on physical properties and antifungal activities of denture base resin. Polymers (Basel)2021; 13: 4331.
42.
MyalenkoDFedotovaOAgarkovA, et al.Tensile and structural properties of antioxidant- and CaCO3-modified polyethylene films. Polymers (Basel)2025; 17: 2182.
43.
KhalidRRFatallaAAAL-RawasM, et al.Analysis of thermal conductivity, surface roughness, and hardness of carbon nanotube-reinforced three-dimensional printed acrylic resin. Baghdad Sci J2025; 22: 1609–1620.
