Topology design and structural optimization of Co-Cr frameworks for implant-supported prostheses.
Cobalt chromium (Co-Cr) frameworks for complete arch implant-supported fixed dental prostheses may be excessively heavy in patients with increased occlusal vertical dimension. This limitation necessitates consideration of lower density materials, which may substantially increase treatment costs. The...
| Publicado en: | Journal of Prosthetic Dentistry Vol. 135; no. 1; pp. 112 - 113 |
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| Autores principales: | , , , , |
| Formato: | research Journal Article |
| Publicado: |
Elsevier B.V.
Jan2026
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=191078950&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 191078950 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 00223913 1ZB jtl: Journal of Prosthetic Dentistry issn: 00223913 maglogo: N pubinfo: dt: Jan2026 vid: 135 iid: 1 pid: 467 pub: Elsevier B.V. place: New York, New York artinfo: ui: 191078950 191078950 191078950 10.1016/j.prosdent.2025.09.010 191078950 ppf: 112 ppct: 1 formats: tig: atl: Topology design and structural optimization of Co-Cr frameworks for implant-supported prostheses. aug: au: Özden, Safa Kayacan, Muhammed Esad Salmanpour, Farhad Camcı, Hasan Yalçın, Bekir affil: Assistant Professor, Department of Prosthodontics, Faculty of Dentistry, Afyonkarahisar Health Sciences University, Afyonkarahisar, Turkey sug: subj: Dental Prosthesis, Implant-Supported Models, Theoretical Biomechanics Cobalt Chromium Dental Materials Human Computer-Aided Design Descriptive Statistics Data Analysis Software Finite Element Analysis Analysis of Variance T-Tests ab: Cobalt chromium (Co-Cr) frameworks for complete arch implant-supported fixed dental prostheses may be excessively heavy in patients with increased occlusal vertical dimension. This limitation necessitates consideration of lower density materials, which may substantially increase treatment costs. The purpose of this study was to investigate the effects of topology optimization on the biomechanical behavior and weight reduction of Co-Cr frameworks used in complete arch implant-supported fixed dental prostheses. Different occlusogingival heights (10 mm and 14 mm) of complete arch implant-supported fixed dental prosthesis frameworks were virtually modeled using a dental computer-aided design (CAD) software program. For each height, 4 lattice types (Schwarz, Gyroid, Diamond, and Neovius) and 2 different maximum lattice thicknesses (2 and 3 mm) were designed. Subsequently, topology optimization was applied to each framework configuration. A total of 16 framework designs were generated, while 2 solid, nonoptimized frameworks without lattice structures were used as controls. In all optimized designs, vertical occlusal loads of 200 N were applied to the canine, premolar, and molar (cantilever) regions. Finite element analysis (FEA) was conducted for all designs to assess von Mises stress (MPa), maximum displacement (μm), reaction force (N), and weight reduction (%). Statistical analyses were performed with 1-way ANOVA and the t test (α=.05). Topology-optimized lattice frameworks achieved up to 51.2% weight reduction without exceeding the material's yield strength. The occlusogingival height of the framework significantly affected von Mises stress, displacement, and reaction force values (P<. 05). The Gyroid lattice demonstrated optimal performance in terms of weight reduction (P<. 001). All stress and displacement values remained within the physiological tolerance limits of the supporting structures. Co-Cr frameworks can be significantly reduced in weight through topology optimization without compromising their mechanical integrity. The lattice geometry and the occlusogingival height of the framework are critical factors contributing to successful optimization. pubtype: Academic Journal doctype: research Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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