Evidence map›Paper›PMID 40934832›Full record

ArticleInternational dental journal2025

Biomechanical Performance of Implant-Tooth-Supported Prostheses: A Numerical 3D Finite Element Analysis.

Hatem S Sadek, Noha M Anany, Mohamed I El-Anwar, Abdulaziz Alhotan, Al-Hassan Diab, Bassma R Fayad, Islam M Heiba, Islam G Shahin, Christoph Bourauel, Tarek M Elshazly

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Article in International dental journal, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

5 citing papers in PubMed.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors.

Hatem S SadekOral Technology, Dental School, University Hospital Bonn, Bonn, Germany.
Noha M AnanyFaculty of Dentistry, Ain Shams University, Cairo, Egypt.
Mohamed I El-AnwarDepartment of Mechanical Engineering, National Research Centre, Giza, Egypt.
Abdulaziz AlhotanDepartment of Dental Health, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia.
Al-Hassan DiabFaculty of Dentistry, British University in Egypt, Cairo, Egypt.
Bassma R FayadFaculty of Dentistry, British University in Egypt, Cairo, Egypt.
Islam M HeibaFaculty of Dentistry, British University in Egypt, Cairo, Egypt.
Islam G ShahinFaculty of Dentistry, Ain Shams University, Cairo, Egypt; Prothodontic Department, Private Clinic, Abu Dhabi, UAE.
Christoph BourauelOral Technology, Dental School, University Hospital Bonn, Bonn, Germany. Electronic address: bourauel@uni-bonn.de.
Tarek M ElshazlyOral Technology, Dental School, University Hospital Bonn, Bonn, Germany. Electronic address: tarek.m.elshazly@gmail.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo assess the biomechanical behaviour of implant-tooth-supported (hybrid) prostheses, compared with an implant-implant-supported prosthesis, utilising two different prosthetic materials, employing finite element analysis (FEA).

methodThree digital models, derived from a CBCT-scanned edentulous mandible, were designed: two hybrid configurations (M1: distal implant-first premolar; M2: mesial implant-first molar) and an implant-implant-supported prosthesis (M3). A biomechanical modelling workflow was carried out (Mimics for segmentation, 3-Matic for bone/mucosal layer refinement, Exocad DentalCAD and SolidWorks for implants, abutment and prosthesis integration, and ANSYS for meshing and FEA). Assuming isotropic/elastic material properties, zirconia and polyetherketoneketone (PEKK) were selected as prosthetic materials. Models were subjected to a static vertical load (100 N). von Mises stress and total deformation were analysed to evaluate structural responses.

resultsM3 demonstrated the most favourable biomechanical profile, exhibiting the lowest von Mises stress magnitudes alongside the highest overall deformation. In hybrid models (M1, M2), stress maxima were localised at the pontic-tooth connector regions and, in M1-PEKK, reached 261 MPa in the screw. Cortical bone and prepared teeth exhibited higher stress in distally anchored hybrid systems (M1) compared to mesially supported designs (M2), regardless of the prosthetic material. Comparative analysis revealed that zirconia-based prostheses generated higher stress concentrations in bone (≤35 MPa) compared to PEKK, whereas the PEKK prosthesis itself exhibited greater structural deformation (70 µm in M1-PEKK).

conclusionHybrid implant-tooth-supported prostheses can act as a reliable alternative to implant-implant ones and eliminate cantilever extensions; however, their use should be reserved for carefully selected cases to avoid biomechanical incompatibilities.

Indexed as

Dental ImplantsDental Prosthesis, Implant-SupportedFinite Element AnalysisBenzophenonesBiomechanical PhenomenaCone-Beam Computed TomographyDental MaterialsDental Prosthesis DesignDental Stress AnalysisHumansImaging, Three-DimensionalKetonesMandiblePolymersZirconiumBenzophenonesDental ImplantsDental MaterialsKetonespolyetheretherketonePolymersZirconiumzirconium oxideDental implantFinite element analysisPolymersProsthodonticsStress analysisZirconia

Identifiers

PMID40934832
PMCPMC12790046

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.