Evidence map›Paper›PMID 42624968›Full record

ArticleOdontology2026

3D-printing for zirconia abutment manufacturing and screw access hole effect: fatigue behavior of milled zirconia simplified restorations.

Fernanda Cocco, Kétlin Fagundes Teixeira, Natália de Freitas Daudt, Augusto Botton Pozzebon, Cornelis Johannes Kleverlaan, João Paulo Mendes Tribst, Pablo Machado Soares, Gabriel Kalil Rocha Pereira, Luiz Felipe Valandro

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Article in Odontology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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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

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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

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0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

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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

9 authors.

Fernanda CoccoMSciD and PhD Post-Graduate Program in Oral Science, Faculty of Dentistry, Federal University of Santa Maria (UFSM), 1000 Roraima Av, T Street, Building 26F, Room 2386, UFSM Campus, Santa Maria, Rio Grande do Sul State, 97105-900, Brazil.
Kétlin Fagundes TeixeiraMSciD and PhD Post-Graduate Program in Oral Science, Faculty of Dentistry, Federal University of Santa Maria (UFSM), 1000 Roraima Av, T Street, Building 26F, Room 2386, UFSM Campus, Santa Maria, Rio Grande do Sul State, 97105-900, Brazil.
Natália de Freitas DaudtMSciD and PhD Post-Graduate Program in Mechanical Engineering, Faculty of Mechanical Engineering, Federal University of Santa Maria (UFSM), Santa Maria, Rio Grande do Sul State, Brazil.
Augusto Botton PozzebonMSciD and PhD Post-Graduate Program in Mechanical Engineering, Faculty of Mechanical Engineering, Federal University of Santa Maria (UFSM), Santa Maria, Rio Grande do Sul State, Brazil.
Cornelis Johannes KleverlaanDepartment of Dental Materials Science, Academic Centre for Dentistry Amsterdam (ACTA), Universiteit van Amsterdam and Vrije Universiteit, Amsterdam, Noord-Holland, The Netherlands.
João Paulo Mendes TribstDepartment of Reconstructive Oral Care, Academic Centre for Dentistry Amsterdam (ACTA), Universiteit van Amsterdam and Vrije Universiteit, Amsterdam, North Holland, the Netherlands.
Pablo Machado SoaresMSciD and PhD Post-Graduate Program in Oral Science, Faculty of Dentistry, Federal University of Santa Maria (UFSM), 1000 Roraima Av, T Street, Building 26F, Room 2386, UFSM Campus, Santa Maria, Rio Grande do Sul State, 97105-900, Brazil.
Gabriel Kalil Rocha PereiraMSciD and PhD Post-Graduate Program in Oral Science, Faculty of Dentistry, Federal University of Santa Maria (UFSM), 1000 Roraima Av, T Street, Building 26F, Room 2386, UFSM Campus, Santa Maria, Rio Grande do Sul State, 97105-900, Brazil.
Luiz Felipe ValandroMSciD and PhD Post-Graduate Program in Oral Science, Faculty of Dentistry, Federal University of Santa Maria (UFSM), 1000 Roraima Av, T Street, Building 26F, Room 2386, UFSM Campus, Santa Maria, Rio Grande do Sul State, 97105-900, Brazil. valandrolf@gmail.com.ORCID http://orcid.org/0000-0001-7203-6924

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The aim of this study is to evaluate the effect of the abutment manufacturing method (CAD/CAM milling or 3D-printing) and the presence of a screw access hole on the fatigue behavior of adhesively cemented zirconia restorations. Zirconia (3YSZ) discs, representing prosthetic abutments (Ø= 10 mm, 3 mm in thickness) were fabricated by simulated CAD/CAM milling (M) or lithography-based 3D-printing (3D), either with a screw access hole (Ø=2.5 mm, filled with resin composite) or without (Rigid) and allocated into four groups: M-Screw, M-Rigid, 3D-Screw and 3D-Rigid. Restorative zirconia discs (4YSZ; Ø=10 mm, 1 mm thickness) were adhesively cemented to the abutments using a dual-cure resin cemented. Cyclic fatigue test was performed (n = 15). Data were analyzed using Kaplan-Meier, Log-rank (Mantel-Cox) and Two-way ANOVA supplemented by fractography and finite element analysis. No significant effect of the manufacturing method was observed on fatigue behavior (p ≥ 0.05). Rigid groups exhibited no failures during testing. Conversely, the presence of a screw access hole significantly reduced fatigue behavior (p < 0.05), with similar mean fatigue failure loads for 3D-Screw (2,286 N) and M-Screw (2,273 N) groups. The manufacturing method of the zirconia abutments (3D-printing or milling) did not influence the fatigue behavior of the restorations. However, the presence of a screw access hole in the abutments significantly reduced the fatigue behavior of the specimen.

Indexed as

Additive manufacturingFatigue behaviorImplant-supportedZirconia abutment

Identifiers

PMID42624968

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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.