Evidence map›Paper›PMID 41844922›Full record

ArticleClinical oral investigations2026

Evaluation of shear bond strength of orthodontic ceramic and metal brackets with zirconia: effects of adhesive systems and storage conditions.

Aya A Salama, Karim A Shehab, Alaa Mohamed Naguib

Abstract read
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Article in Clinical oral investigations, 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

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2 · The registry

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

3 authors.

Aya A SalamaAssociate Professor of Prosthodontics, Faculty of Dentistry, October University for Modern Sciences and Arts, 6th October City, Egypt. ayasaad@msa.edu.eg.
Karim A ShehabLecturer of Orthodontics, Faculty of Dentistry, October University for Modern Sciences and Arts, 6th October City, Egypt.
Alaa Mohamed NaguibLecturer of Prosthodontics, Faculty of Dentistry, October University for Modern Sciences and Arts, 6th of October City, Egypt.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThe current study assessed the shear bond strength of two orthodontic bracket materials to zirconia using two bonding approaches and two storage settings.

methodsTwo bonding strategies were selected to bond metal and ceramic brackets to zirconia samples. Before being tested for Shear Bond Strength [SBS], samples were either subjected to 5,000 thermocycles or kept in water for 24 h. Samples were divided into 8 Groups [n = 10] represented as Group 1: Ceramic Brackets + HEMA-Free Bonding System + Water Storage, Group 2: Ceramic Brackets + HEMA-Containing Bonding System + Water Storage, Group 3: Metal Brackets + HEMA-Free Bonding System + Water Storage, Group 4: Metal Brackets + HEMA-Containing Bonding System + Water Storage, Group 5: Ceramic Brackets + HEMA-Free Bonding System + Thermocycling, Group 6: Ceramic Brackets + HEMA-Containing Bonding System + Thermocycling, Group 7: Metal Brackets + HEMA-Free Bonding System + Thermocycling, Group 8: Metal Brackets + HEMA-Containing Bonding System + Thermocycling. Several independent groups were compared using the Kruskal-Wallis test, and two independent groups were assessed using the Mann-Whitney U test. A P-value < 0.05 was deemed significant.

resultsShear bond strength was significantly greater in ceramic than in metal [5.9 ± 2.6 vs. 4.9 ± 2.3, p = .026] and in 2-Hydroxyethyl methacrylate HEMA-containing systems compared to HEMA-free systems [6.1 ± 2.3 vs. 4.8 ± 2.4, p = .034]. Water storage settings also yielded higher bond strength than thermocycling conditions [6.9 ± 1.8 vs. 3.9 ± 2.2, p < .001].

conclusionThe findings indicate that shear bond strength was significantly influenced by bracket material and adhesive system to zirconia. Additionally, storage settings play a crucial part in shear bond strength. CLINICAL RELEVANCE: Developing effective bonding techniques for orthodontic brackets and zirconia ceramic materials remains a major clinical obstacle.

Indexed as

CeramicsDental BondingOrthodontic BracketsZirconiumDental Stress AnalysisMaterials TestingShear StrengthSurface PropertiesZirconiumzirconium oxide5YTZP zirconiaCeramic bracketHEMAMetal bracketShear bond strengthStorage

Identifiers

PMID41844922
PMCPMC12995977

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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.