Evidence map›Paper›PMID 41593622›Full record

ArticleBMC oral health2026

Comparative finite element analysis of stress distribution of different implant-supported crown and abutment materials.

Wan Wan Chan, Muaiyed Mahmoud Buzayan, Eshamsul Sulaiman, Nur Diyana Mohamed Radzi, Mohammed Rafiq Abdul Kadir, Mahmoud Z Ibrahim

Abstract readComparative Study
PubMed Full text at PMC Publisher
In one paragraph

Article in BMC oral health, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

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

2 citing papers in PubMed.

  1. Article
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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

6 authors.

Wan Wan ChanDepartment of Restorative Dentistry, Faculty of Dentistry, Universiti Malaya, Kuala Lumpur, Malaysia.
Muaiyed Mahmoud BuzayanDepartment of Restorative Dentistry, Faculty of Dentistry, Universiti Malaya, Kuala Lumpur, Malaysia. muaiyed_zyan@hotmail.com.
Eshamsul SulaimanDepartment of Restorative Dentistry, Faculty of Dentistry, Universiti Malaya, Kuala Lumpur, Malaysia. eshamar@um.edu.my.
Nur Diyana Mohamed RadziDepartment of Restorative Dentistry, Faculty of Dentistry, Universiti Malaya, Kuala Lumpur, Malaysia.
Mohammed Rafiq Abdul KadirDepartment of Biomedical Engineering, Faculty of Engineering, Universiti Malaya, Kuala Lumpur, Malaysia.
Mahmoud Z IbrahimDepartment of Mechanical Engineering, Faculty of Engineering, Universiti Malaya, Kuala Lumpur, Malaysia.

Funding

Dental Postgraduate Research Grant of Faculty of Dentistry, Universiti Malaya UMG002E-2024
6 · The paper itself

Abstract

backgroundThe additively manufactured definitive resins have been proposed for implant-supported restorations nowadays due to its shock absorbing capacity; however, there are limited studies evaluating the effects of different implant-supported crown and abutment materials on stress distribution in implant components and peri-implant bone. This finite element analysis (FEA) aimed to evaluate stress distribution in implant components and the peri-implant bone using different combinations of computer-aided design and computer-aided manufacturing (CAD/CAM) zirconia and three-dimensional (3D) printed ceramic filled hybrid materials for crown and CAD/CAM custom abutment.

methods3D models of a bone-level implant system and titanium base (Ti-base) abutments were created using standard tessellation language (STL) data. A mandibular first molar implant-supported crown was modelled with five different combinations of CAD/CAM zirconia and 3D printed ceramic filled hybrid materials for crown and CAD/CAM custom abutment. A vertical load of 600 N and an oblique load of 225 N at 45° were applied. Stress distribution in implant components and peri-implant bone were evaluated using von Mises stress (VMS) analysis.

resultsUnder vertical and oblique loading, the overall von Mises stress values across all groups ranged from 102 to 214 MPa in the crown, 45–423 MPa in the CAD/CAM custom abutment, 158–225 MPa in the abutment screw, 242–580 MPa in the Ti-base abutment, 201–461 MPa in the fixture, and 122–204 MPa in the cortical bone. Under both loads, groups CAD/CAM zirconia crown paired with 3D printed ceramic filled hybrid material abutments notably demonstrated reduced stress at the CAD/CAM custom abutment (90% reduction) and Ti-base abutment (27% reduction). The stress distribution in the cortical and cancellous bones remained comparable across all groups under both loads.

conclusionsDifferent combinations of CAD/CAM zirconia and 3D printed ceramic filled hybrid materials for crown and CAD/CAM custom abutment, positively influenced the stress distribution within the abutment complex (custom abutment and Ti-base abutment). However, the stresses in the implant fixture and peri-implant bone showed no notable change.

Indexed as

CrownsDental AbutmentsDental Prosthesis, Implant-SupportedDental Stress AnalysisCeramicsComputer-Aided DesignDental MaterialsDental Prosthesis DesignFinite Element AnalysisHumansPrinting, Three-DimensionalStress, MechanicalTitaniumZirconiumDental MaterialsTitaniumZirconiumzirconium oxideComputer-Aided designComputer-Aided manufacturingCrownsDental abutmentsFinite element analysisImplant-Supported dental prosthesisStress analysisThree-Dimensional printingZirconia

Identifiers

PMID41593622
PMCPMC12950244

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LicenceCC BY-NC-ND
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