Finite element analysis of the effect of framework material and thickness on the biomechanical performance of ‘All‑on‑Four’ full-arch prosthesis

Yomna H. Shash, Mohamed T. El-Wakad, Mohamed A. A. Eldosoky and Mohamed M. Dohiem

Computer Methods in Biomechanics and Biomedical Engineering, 2025, vol. 28, issue 12, 1953-1968

Abstract: The aim of this research was to evaluate the stress distribution in the ‘All-on-Four’ prosthesis and the surrounding bone, with different framework materials and thicknesses. Five frameworks (alumina, zirconia, titanium, fiberglass reinforced resin (FRR), and polyether ether ketone (PEEK)) with two thicknesses (3.5 &5.5 mm) were stimulated in this research. A vertical force of 200 N was applied on a 1 mm circular area, at the cantilever, and at the region of the incisors, simulating different mastication mechanisms. The results illustrated that the 5.5 mm framework reduced the stresses on most parts, mucosa, and bone tissues, compared to 3.5 mm.

Date: 2025
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DOI: 10.1080/10255842.2024.2355260

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