Bonding Orthodontic Attachments to 3D-Printed Photosensitive Definitive Resin: An In Vitro Study

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AudienciaPúblico en generales_ES
CoberturaMéxicoes_ES
Fecha de ingreso2026-09-15T00:29:42Z
Fecha de publicación2025-01-01
ResumenBackground/Objectives: The increasing clinical integration of 3D-printed definitive resins requires a comprehensive understanding of their physicochemical properties and adhesive behavior. However, there is limited evidence regarding the optimal surface treatment and bonding strategies for clear aligner composite attachments on these materials. This study aimed to characterize a 3D-printed definitive resin, evaluate the effects of surface treatments on its surface topography, and compare the shear bond strength (SBS) of the bonded attachments using different adhesive systems, both before and after thermocycling. Methods: A total of 120 rectangular specimens were fabricated from a 3D printed dental resin (Crowntec®, SAREMCO Dental AG—Mexico City, Mexico). For physicochemical characterization, six samples underwent scanning electron microscopy/energy-dispersive spectroscopy, X-ray diffraction, and thermogravimetric analysis. To evaluate surface topography, 42 polished specimens were assigned to three groups: untreated (control), etched with 4% hydrofluoric acid (HFA), or sandblasted with 50 µm Al2O3 (AA). Each group was subdivided for SEM observation and surface roughness (Ra) measurement. For SBS testing, 72 additional samples received the same surface treatments and were further subdivided according to the adhesive system: Transbond™ XT Primer (TXT) or Single Bond Universal (SBU). Results: The AA group showed the highest Ra (2.21 ± 0.30 µm), followed by HFA (0.81 ± 0.20 µm) and control (0.07 ± 0.30 µm) (p < 0.001). The highest SBS was observed in the AA + SBU group, followed by AA + TXT. Conclusions: Sandblasting with Al2O3 particles, combined with a universal adhesive, significantly improved bond strength, suggesting a viable protocol for 3D printed definitive composites in aligner attachment applications.es_ES
Doihttps://doi.org/10.3390/dj13080341es_ES
URIhttps://riuat.uat.edu.mx/handle/123456789/1705
Idiomaeses_ES
EditorialMDPI AGes_ES
RelaciónDentistry Journales_ES
URL relacionadohttps://doi.org/10.3390/dj13080341es_ES
DerechosAcceso abierto (Metadatos de producción científica)es_ES
Licenciahttp://purl.org/coar/access_right/c_abf2es_ES
FuenteDentistry Journal
TítuloBonding Orthodontic Attachments to 3D-Printed Photosensitive Definitive Resin: An In Vitro Studyes_ES
TipoArtículoes_ES
ArbitradoHa sido Arbitradoes_ES
AutorCriollo-Barrios, Omaika Victoria
AutorLuna-Domínguez, Carlos Roberto
AutorLuna-Lara, Carlos Alberto
AutorFigueroa-López, Ricardo de Jesus
AutorCozza, Ronaldo Câmara
AutorLuna-Domínguez, Jorge Humberto
AutorCriollo-Barrios, Omaika Victoriaes_ES
AutorLuna-Domínguez, Carlos Robertoes_ES
AutorLuna-Lara, Carlos Albertoes_ES
AutorFigueroa-López, Ricardo de Jesuses_ES
AutorCozza, Ronaldo Câmaraes_ES
AutorLuna-Domínguez, Jorge Humbertoes_ES
InstituciónUniversidad Autónoma de Tamaulipas
InstituciónUniversidad Autónoma de Tamaulipases_ES
Número8es_ES
Rango de páginas341es_ES
URL relacionadahttps://doi.org/10.3390/dj13080341
Tipo de artículoIndexado
Tipo de artículoIndexadoes_ES
Volumen13es_ES

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