Ceria-stabilized zirconia/alumina nanocomposite (Ce-TZP/A) exhibits an elasticity equivalent to that of cobalt-chromium alloy and a flexural property that is superior to that of yttria-tetragonal zirconia polycrystal. Therefore, the use of Ce-TZP/A for the fabrication of removable dental prosthesis frameworks is being studied. However, the current English literature does not include any clinical report on the use of Ce-TZP/A for the fabrication of the entire framework. This clinical report describes the process and outcomes of fabricating a mandibular implant-supported overdenture and a maxillary complete denture with Ce-TZP/A as the framework material.
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Mirror-polished ceria-stabilized zirconia/alumina nanocomposite enhances gingival junctional epithelial cell adhesion.
J Oral Biosci
December 2024
Department of Prosthodontics, Showa University School of Dentistry, Tokyo, Japan. Electronic address:
Objectives: The aim of this study was to determine the optimal surface roughness (Ra) of ceria-stabilized zirconia/alumina nanocomposite (Ce-TZP/Al₂O₃) implants for mouse gingival junctional epithelial cell (JE-1) adhesion and soft tissue sealing in vitro.
Methods: Titanium and Ce-TZP/Al₂O₃ disks were prepared, mechanically polished (M), and mirror-polished (Mr). The surface morphology of each disk was evaluated, and the Ra was measured using scanning electron microscopy and atomic force microscopy.
A Novel Zirconia-Based Composite Presents an Aging Resistant Material for Narrow-Diameter Ceramic Implants.
Materials (Basel)
April 2021
Medical Center-University of Freiburg, Center for Dental Medicine, Department of Prosthetic Dentistry, Faculty of Medicine, University of Freiburg, Hugstetter Str. 55, 79106 Freiburg, Germany.
A novel ceria-stabilized zirconia-alumina-aluminate composite (Ce-TZP-comp) that is not prone to aging presents a potential alternative to yttrium-stabilized zirconia for ceramic oral implants. The objective of this study was to evaluate the long-term stability of a one-piece narrow-diameter implant made of Ce-TZP-comp. Implant prototypes with a narrow (3.
View Article and Find Full Text PDFShear bond strength of an acrylic resin to a ceria-stabilized zirconia-alumina nanocomposite.
J Prosthet Dent
October 2022
Professor and Chair, Department of Prosthodontics, Showa University School of Dentistry, Tokyo, Japan. Electronic address:
Statement Of Problem: Ceria-stabilized zirconia-alumina nanocomposite (Ce-TZP-AlO) has properties that may be suitable for partial denture frameworks. However, studies on its adhesion strength and durability with denture base resin are lacking.
Purpose: The purpose of this in vitro study was to determine the optimal surface treatment for Ce-TZP-AlO to secure a durable bond with an acrylic resin.
Effects of surface roughness of ceria-stabilized zirconia/alumina nanocomposite on the morphology and function of human gingival fibroblasts.
Dent Mater J
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Department of Prosthodontics, School of Dentistry, Showa University.
We evaluated the biological effects of implant abutments made from ceria-stabilized zirconia/alumina nanocomposite (Ce-TZP/AlO) with surface roughness variations using human gingival fibroblasts (HGF-1) in the transmucosal region. Two types of titanium (Ti) and Ce-TZP/AlO disks with different surface roughness profiles were prepared (Ra0.9 and Ra0.
View Article and Find Full Text PDFEffects of Plasma Treatment on the Bioactivity of Alkali-Treated Ceria-Stabilised Zirconia/Alumina Nanocomposite (NANOZR).
Int J Mol Sci
October 2020
Department of Removable Prosthodontics and Occlusion, Osaka Dental University, 8-1 Kuzuha-hanazono-cho, Hirakata, Osaka 573-1121, Japan.
Zirconia ceramics such as ceria-stabilized zirconia/alumina nanocomposites (nano-ZR) are applied as implant materials due to their excellent mechanical properties. However, surface treatment is required to obtain sufficient biocompatibility. In the present study, we explored the material surface functionalization and assessed the initial adhesion of rat bone marrow mesenchymal stem cells, their osteogenic differentiation, and production of hard tissue, on plasma-treated alkali-modified nano-ZR.
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