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Short-pulse direct laser writing of 3Y-TZP zirconia: a superior surface modification strategy for enhanced resin bonding and adhesion durability

2025-11-01Research article Open access
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dc.contributor.authorSahoo, Narayan
dc.contributor.authorCarvalho, Óscar
dc.contributor.authorÖzcan, Mutlu
dc.contributor.authorEyüboğlu, Tan Fırat
dc.contributor.authorSouza, Júlio C. M.
dc.contributor.authorSilva, Filipe
dc.contributor.authorHenriques, Bruno
dc.date.accessioned2025-09-08T09:26:56Z
dc.date.available2025-09-08T09:26:56Z
dc.date.issued2025-11-01
dc.description.abstractThe clinical success of zirconia-based restorations relies on surface modifications that enhance adhesion without compromising material integrity. This study evaluates Direct Laser Writing (DLW) as a non-contact, contamination-free alternative to conventional grit-blasting methods (alumina particle abrasion [SB] and silica-coated alumina treatment [SC]. Surface roughness (Ra), wettability, surface free energy (SFE), phase transformation, and shear bond strength (SBS) were assessed. Zirconia specimens (N = 40) underwent DLW at two distinct parameters (DLW35, DLW10) or conventional grit-blasting (SB, SC). Surface characterization included roughness measurements, contact angle analysis, and SFE calculation (Owens-Wendt method). Phase transformation was quantified using X-ray diffraction (XRD). SBS tests between zirconia and resin-matrix cement were performed under water storage and thermocycled conditions. Results showed DLW provided controlled, uniform roughness comparable to grit-blasting without inducing mechanical damage or contamination. DLW-treated surfaces exhibited significantly better wettability and higher SFE. SBS values were statistically similar across all groups, indicating stable adhesion performance under both dry and thermocycled conditions. DLW preserved the tetragonal zirconia phase substantially better (DLW35: 93 %, DLW10: 85 %) compared to grit-blasted surfaces (SB: 76 %, SC: 68 %), minimizing residual stress and microstructural damage. The study concludes DLW is a superior zirconia surface treatment, offering precise control, contamination-free surfaces, enhanced wettability, and maintained microstructural integrity, making it ideal for dental, maxillofacial, and orthopedic applications.eng
dc.identifier.citationSahoo, N., Carvalho, Ó., Özcan, M., Eyüboğlu, T. F., Souza, J. C. M., Silva, F., & Henriques, B. (2025). Short-pulse direct laser writing of 3Y-TZP zirconia: a superior surface modification strategy for enhanced resin bonding and adhesion durability. Ceramics International, 51(26), 47830-47843. https://doi.org/10.1016/j.ceramint.2025.08.042
dc.identifier.doi10.1016/j.ceramint.2025.08.042
dc.identifier.eid105012882885
dc.identifier.issn0272-8842
dc.identifier.other551de5c1-c647-4291-a754-45902825ffe9
dc.identifier.urihttp://hdl.handle.net/10400.14/54720
dc.identifier.wos001598072200024
dc.language.isoeng
dc.peerreviewedyes
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subject3Y-TZP zirconia
dc.subjectAdhesion
dc.subjectDental restorations
dc.subjectDirect laser writing
dc.subjectResin-matrix cement
dc.subjectShear bond strength
dc.subjectSurface free energy
dc.subjectSurface modification
dc.titleShort-pulse direct laser writing of 3Y-TZP zirconia: a superior surface modification strategy for enhanced resin bonding and adhesion durabilityeng
dc.typeresearch article
dspace.entity.typePublication
oaire.citation.endPage47843
oaire.citation.issue26
oaire.citation.startPage47830
oaire.citation.titleCeramics International
oaire.citation.volume51
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85

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