Method of forming a denture stomatitis reduction device
AssigneeImam Abdulrahman Bin Faisal University
InventorsMohammed Moustafa Ahmed GAD, Reem ABUALSAUD, Ahmed Mohamed RAHOMA, Shaimaa Mohamed Said FOUDA, Ahmad M. AL-THOBITY
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Abstract
Base material arrangements having at least two layers can accommodate the addition of antifungal material (nanofiller), such as in denture base resin without significantly compromising the mechanical properties and/or translucency of the base material arrangements. Antifungal agents such as nanosilver and nanozirconia can be used to modify a surface layer of the material arrangements, such as the denture base, to overcome certain known shortcomings of the modified materials, e.g., typical acrylic resins containing nanosilver and nanozirconia.
Claims13
A method of forming a denture for reducing denture stomatitis, comprising:
- conforming a first viscous monomer composition into a dental mold;
- then
- conforming a second viscous monomer composition into the dental mold over the first viscous monomer composition, then
- polymerizing the first and second viscous monomer compositions in the dental mold, thereby forming an antibacterial denture;
- then
- fitting a patient having a dental appliance with the antibacterial denture;
- wherein the antibacterial denture has a polished cameo surface and an unpolished intaglio surface made of a dental restoration base material,
- wherein the dental restoration base material comprises:
- a first layer comprising at least 90 wt. %, relative to total first layer weight, of a cured first composition comprising, prior to curing, a first (meth)acrylic polymer and a first (meth)acrylic monomer as the cameo surface of the antibacterial denture;
- and
- a surface layer comprising at least 90 wt. %, relative to total surface layer weight, of a cured second composition comprising, prior to curing, a second (meth)acrylic polymer, a second (meth)acrylic monomer as the intaglio surface of the antibacterial denture, 0.45 to 0.55 wt. % of antimicrobial nanoparticles, relative to a total surface layer weight, wherein the surface layer has a thickness of 0.2 to 2 mm,
- wherein no gradient in antimicrobial nanoparticle content and no continuous bulk containing the antimicrobial nanoparticles is present between the first and surface layers,
- wherein the first layer is free of the antimicrobial nanoparticles,
- wherein the antimicrobial nanoparticles are selected from silver nanoparticles and zirconium dioxide nanoparticles, and
- wherein the material has a flexural strength in a range of 78 to 87 MPa, a translucency parameter in a range of 6.5 to 13, and a surface roughness in a range of 0.13 to 0.2 μm.
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Dependencies are inferred from the claim text.