Evidence map›Paper›PMID 40618097›Full record

ArticleBMC oral health2025

Mechanical behavior of hybrid custom implant abutments with various crown materials: a 3D finite element analysis.

Pongsakorn Poovarodom, Guilherme Faria Moura, Fabio Antonio Piola Rizzante, Chaiy Rungsiyakull, Jarupol Suriyawanakul, Pimduen Rungsiyakull

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Article in BMC oral health, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing 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

4 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

6 authors.

Pongsakorn PoovarodomDepartment of Reconstructive and Rehabilitation Sciences, James B. Edwards College of Dental Medicine, Medical University of South Carolina, Charleston, USA.
Guilherme Faria MouraDepartment of Reconstructive and Rehabilitation Sciences, James B. Edwards College of Dental Medicine, Medical University of South Carolina, Charleston, USA.
Fabio Antonio Piola RizzanteDepartment of Reconstructive and Rehabilitation Sciences, James B. Edwards College of Dental Medicine, Medical University of South Carolina, Charleston, USA.
Chaiy RungsiyakullDepartment of Mechanical Engineering, Faculty of Engineering, Chiang Mai University, Chiang Mai, Thailand.
Jarupol SuriyawanakulDepartment of Mechanical Engineering, Faculty of Engineering, Khon Kaen University, Khon Kaen, Thailand.
Pimduen RungsiyakullDepartment of Prosthodontics, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand. pimduen.rungsiyakull@cmu.ac.th.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTraditional and innovative materials are widely used in dentistry; however, the mechanical behavior of hybrid custom implant abutments, particularly stress distribution in various material combinations, is not fully understood. The study aims to evaluate the mechanical behavior of hybrid custom implant abutments made from various material combinations, including their effects on von Mises stress, maximum and minimum principal stresses, and deformation.

methodsTwo 3-dimensional (3D) models were constructed: a 1.5 mm subcrestal as the test and an equicrestal model as the control. The subcrestal model explored seven materials (Zirconia, Titanium, Lithium Disilicate, Polymer-Infiltrated Ceramic Networks, PEEK, PEEK reinforced with carbon fiber and reinforced with glass fiber) in various abutment and crown combinations. Each model included an implant, titanium base abutment, abutment screw, a custom abutment, a zirconia crown, and bone. A 200 N load was applied, and a Finite Element Analysis (FEA) assessed peak, volume average, and distribution of von Mises stress and principal stress.

resultsThe titanium base (Tibase) exhibited the highest peak and volume average von Mises stresses (306-429 MPa), followed by the custom abutment (40-95 MPa) and crown (46-81 MPa). Material changes significantly impacted stress distribution in the Tibase and customized abutments. PICN, Zirconia, Titanium, and Lithium Disilicate abutments showed peak principal stresses between 77 and 85 MPa, while PEEK variants reduced stress in the custom abutment (35-66 MPa) but increased it in the Ti-base (356-405 MPa). PEEK also increased minimum principal stresses in the Ti-base (-400 to -600 MPa).

conclusionsAbutment materials have a greater impact on stress outcomes compared to crown materials. Abutments with high Young's modulus contribute to increased core system stiffness in hybrid custom abutment complexes. Choosing abutment materials with a high Young's modulus for hybrid custom implant abutments is essential to optimize stress distribution and enhance the stability of the implant system.

Indexed as

CrownsDental AbutmentsDental Implant-Abutment DesignDental MaterialsFinite Element AnalysisBenzophenonesCarbon FiberCeramicsDental PorcelainDental Stress AnalysisGlassHumansKetonesMaterials TestingPolyethylene GlycolsPolymersBenzophenonesCarbon FiberDental MaterialsDental PorcelainfiberglassKetoneslithia disilicatepolyetheretherketonePolyethylene GlycolsPolymersTitaniumZirconiumzirconium oxideCAD/CAMCustomized abutmentsFinite element analysisMaterial propertiesMechanical performance

Identifiers

PMID40618097
PMCPMC12228271

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Registered trials

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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.