2026-04-18T07:44:09Zhttps://recercat.cat/oai/request
oai:recercat.cat:20.500.12328/51472025-12-05T14:50:11Zcom_2072_67741col_2072_484352
RECERCAT author Gutiérrez Ruiz, Xavier author Cano-Batalla, Jordi author Figueras, Oscar author Real-Voltas, Francisco author NÚÑEZ BIELSA, ELENA author Cabratosa-Termes, Josep 2025-12-05T14:50:11Z 2025-12-05T14:50:11Z 2025-11-26 Gutiérrez-Ruiz, Xavier; Cano-Batalla, Jordi; Figueras-Álvarez, Óscar[et al.]. In Vitro Effect of Sequential Compressive Loading and Thermocycling on Marginal Microleakage of Digitally Fabricated Overlay Restorations Made from Five Materials. Applied sciences, 2025, 15(23), 12532. Disponible en <https://www.mdpi.com/3606740>. Fecha de acceso: 27 nov. 2025. DOI: 10.3390/app152312532 2076-3417 http://hdl.handle.net/20.500.12328/5147 10.3390/app152312532 Marginal microleakage compromises the longevity and biological seal of indirect restorations. Despite the growing adoption of computer-aided design and manufacturing (CAD/CAM) and three-dimensional (3D) printing technologies, limited evidence compares the marginal integrity of these materials under combined mechanical and thermal stresses. This study evaluated and compared the marginal microleakage of overlay restorations fabricated from five contemporary restorative materials, IPS e.max® ZirCAD Prime, BioHPP®, G-CAM, VarseoSmile CrownPlus, and IPS e.max® CAD, after sequential compressive loading and thermocycling. A total of 125 extracted human molars were prepared for standardized 1.5 mm-thick CAD/CAM overlay restorations and assigned to three experimental conditions: control, sequential compressive loading (3 × 500 N), and thermocycling (6000 cycles between 5 ◦C and 55 ◦C) followed by loading. Microleakage was assessed using 2% methylene blue dye and stereomicroscopy. Data were analyzed using Fisher’s exact test and Fleiss’ Kappa (α = 0.05). G-CAM and IPS e.max® ZirCAD Prime exhibited the lowest microleakage across all testing conditions, while BioHPP® showed the highest values. Both sequential compressive loadings and thermocycling significantly increased microleakage in all materials (p < 0.001). The results indicate that material type significantly influences marginal sealing, with G-CAM and IPS e.max® ZirCAD Prime maintaining superior marginal integrity compared with other materials tested. spa © 2025 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/ licenses/by/4.0/) CAD/CAM Microleakage Overlay restorations Thermocycling Sequential compressive loadings Zirconia High-performance polymers Microfiltración Restauraciones superpuestas Termoterapia Circonita Polímeros de alto rendimiento Cargas compresivas secuenciales Microfiltració Restauracions superposades Termoteràpia Zircònia Polímers d'alt rendiment Càrregues compressives seqüencials In Vitro Effect of Sequential Compressive Loading and Thermocycling on Marginal Microleakage of Digitally Fabricated Overlay Restorations Made from Five Materials info:eu-repo/semantics/article