The surface quality of denture base resins allows for easy colonization by microorganisms including and , which cause major diseases of the oral cavity such as denture stomatitis. The widespread use of silver nanoparticles (AgNPs) in various fields of medicine has led to research of their possible application in dentistry, mostly in the prevention of bacterial adhesion, proliferation, and biofilm formation. The aim of the study was to synthesize cold and heat-curing denture base resins modified with AgNPs and AgCl, and evaluate the potential of the modified resins to reduce the growth of and . The produced material was characterized by Fourier transform infrared spectroscopy (FTIR). The antimicrobial potential of the modified material was demonstrated by the disc-diffusion method, microdilution method, and a modified microdilution method (i.e., disk-diffusion method in broth with viable counting). Spectroscopy confirmed the incorporation of biocidal materials into the structure of the denture base resins. The AgCl and AgNPs modified resins showed an antimicrobial effect. The significance of the study is in the potential therapeutic effects of the modified materials for prevention and threating staphylococci and candida in elderly patients, who are in most cases denture wearers and have a greater susceptibility to develop opportunistic infections. Modified denture base resins can significantly reduce the presence of infection at the point of contact between the denture and the mucous membrane of the prosthetic restoration. Biological tests of modified denture base resins will follow.
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http://dx.doi.org/10.3390/nano12142453 | DOI Listing |
J Prosthet Dent
January 2025
Assistant Professor, Department of Prosthodontic, College of Dental Medicine, Rangsit University, Phatum Thani, Thailand. Electronic address:
Statement Of Problem: Comprehensive data are needed on the performance of chemically activated, chairside hard reline materials when used with computer-aided design and computer-aided manufacturing (CAD-CAM) milled polymethyl methacrylate (PMMA) denture bases and conventionally processed bases. This lack of data affects decisions regarding the chairside reline material to be used for improving the fit and retention of relined complete dentures.
Purpose: The purpose of this in vitro study was to evaluate and compare the shear bond strength (SBS) of 3 chemically activated, chairside hard reline materials on CAD-CAM milled and conventional heat-polymerized PMMA denture bases.
J Indian Prosthodont Soc
January 2025
Department of Prosthodontics, K M Shah Dental College and Hospital, Sumandeep Vidyapeeth, Vadodara, Gujarat, India.
Aim: The aim is to evaluate and compare stress distribution characteristics of ball, magnet, and positioned attachment systems in single and double implant-retained overdentures using the finite element method (FEM).
Setting And Design: In vitro (in silico study) finite element analysis (FEA).
Materials And Methods: A Styrofoam mandible with duplicated silicon mucosa was used to construct a mandibular complete denture.
J Prosthet Dent
December 2024
Associate Professor and Department Head, Department of Prosthodontics, University of Ferrara, Ferrara, Italy.
The purpose of this article was to present a novel clinical workflow for the fabrication of complete dentures using computer-aided design and computer-aided manufacturing (CAD-CAM) technology. The dental technique consists of 3 clinical steps and 2 laboratory phases that result in the production of 2 CAD-CAM milled complete denture bases with prefabricated teeth. The integration of analog and digital procedures and materials maximizes their benefits in the planning and fabrication of complete dentures, with the goal of improving clinical outcomes.
View Article and Find Full Text PDFShanghai Kou Qiang Yi Xue
October 2024
Dental Disease Control Institute, Xuhui District. Shanghai 20032, China. E-mail:
Purpose: To compare the trueness of the tissue surface of the complete denture base among the digital cutting complete denture, the digital 3D printing complete denture and the conventional complete denture.
Methods: Three edentulous patients were selected, and three complete dentures were made for each case. Cutting dentures (cutting group), 3D printed dentures(printing group) were considered as the experimental groups, traditional dentures (traditional group) were considered as the control group.
Stomatologiia (Mosk)
December 2024
Ryazan State Medical University, Ryazan, Russia.
Objective: The aim of the study is to study the degree of adhesion of reference strains of microorganisms to the surface of modern polymer materials for the manufacture of removable prostheses.
Materials And Methods: The primary and residual microbial adhesion of 4 types of polymers was studied: acrylic polymer (Villacryl H Plus), monomerless polymer (Vertex ThermoSens), photopolymers for additive manufacturing (Harz Labs Dental Denture Base, Harz Labs Dental Sand). , , , and were used as reference strains.
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