Graduated glass infiltration in an ultra-translucent zirconia (5Y-PSZ): synthesis, processing and characterization of physical and mechanical properties

• Grant number: 21/07440-2
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• Start date: August 01, 2022
• End date: August 04, 2025
• Field of knowledge: Health Sciences - Dentistry - Dental Materials
• Principal Investigator: Estevam Augusto Bonfante
• Grantee: Larissa Marcia Martins Alves
• Host Institution: Faculdade de Odontologia de Bauru (FOB). Universidade de São Paulo (USP). Bauru , SP, Brazil
• Associated research grant: 12/19078-7 - Development and processing of Al2O3-ZrO2 translucent composite for CAD/CAM monolithic prostheses: the effect of aging on biaxial flexural strength, AP.JP
• Associated scholarship(s): 23/07289-8 - Influence of low temperature degradation on the wear resistance of recycled translucent zirconia, BE.EP.PD

Abstract

Glass infiltration in polycrystalline ceramics has shown to improve optical, mechanical and adhesive properties. Although such advantages have already been proven for 1st and 2nd zirconia generations, these materials are susceptible to Low Temperature Degradation (LTD), which was the rationale behind the Young Investigator Award #2012/19078-7 that motivated the development of zirconia-alumina composites. Preliminary data reported to FAPESP and published by our team have demonstrated the successful development of ceramic composites resistant to LTD with unaltered optical and mechanical properties. However, the 3rd zirconia generation is resistant to LTD, since their microstructure mostly contains cubic phase and does not undergo phase transformation which, as a trade-off, eliminates the toughening mechanism and drastically decreases the mechanical performance. Thus, this project proposes to innovate by developing a compatible bioglass for the gradual infiltration of the 3rd generation zirconia, aiming to improve mechanical, optical and adhesive properties. 5Y-PSZ specimens will be infiltrated by the developed glass and after sintering will be characterized by Energy-Dispersive X-ray spectroscopy (EDX), Scanning Electron Microscopy (SEM) and X-Ray Diffraction (XRD). The density will be estimated, and the optical properties will be evaluated in a spectrophotometer. Hardness and fracture toughness will be calculated using Vickers indentation and gradual variation in the modulus of elasticity by nanoindentation. The biaxial flexural strength test will be performed to calculate the probability of survival (ISO 6872:2015), Weibull modulus and characteristic strength. (AU)

Scientific publications

(14)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

JALKH, ERNESTO B. BENALCAZAR; RAMALHO, ILANA S.; BERGAMO, EDMARA T. P.; ALVES, LARISSA M. M.; TANAKA, RICARDO; WITEK, LUKASZ; COELHO, PAULO G.; HIRATA, RONALDO; BONFANTE, ESTEVAM A.. Ultrathin lithium disilicate and translucent zirconia crowns for posterior teeth: Survival and failure modes. Journal of Esthetic and Restorative Dentistry, v. N/A, p. 10-pg., 2023-09-07. (21/06730-7, 21/08018-2, 22/05496-3, 21/07440-2, 12/19078-7, 16/18818-8, 19/08693-1, 22/07157-1, 22/05495-7)

BENALCAZAR-JALKH, ERNESTO B.; DE CARVALHO, LAURA F.; ALVES, LARISSA M. M.; CAMPOS, TIAGO M. B.; SOUSA, EDISA DE OLIVEIRA; BERGAMO, EDMARA T. P.; COELHO, PAULO G.; GIERTHMUEHLEN, PETRA C.; SPITZNAGEL, FRANK A.; ZAHOUI, ABBAS; et al. Reliability and Failure Mode of Ti-Base Abutments Supported by Narrow/Wide Implant Systems. DENTISTRY JOURNAL, v. 11, n. 9, p. 11-pg., 2023-09-01. (21/06730-7, 21/08018-2, 20/12874-9, 21/07440-2, 16/18818-8, 19/08693-1, 19/00452-5, 22/07157-1, 18/03072-6)

ALVES, LARISSA M. M.; CAMPOS, TIAGO M. B.; BERGAMO, EDMARA T. P.; BENALCAZAR JALKH, ERNESTO B.; GIERTHMUEHLEN, PETRA C.; SAILER, IRENA; THIM, GILMAR P.; STRAZZI-SAHYON, HENRICO B.; CELESTRINO, MARCOS; GUIMARAES, CAROLINA C. L.; et al. Hydrofluoric acid concentration and etching time affect differently the microstructure and surface properties of pressed lithium disilicate glass ceramics. Journal of Esthetic and Restorative Dentistry, v. N/A, p. 9-pg., 2023-09-29. (21/06730-7, 21/08018-2, 20/12874-9, 21/07440-2, 19/08693-1, 22/07157-1, 22/12118-5)

CAMPOS, TIAGO MOREIRA BASTOS; SILVA, ANA CAROLINA DA; SPIRANDELI, BRUNO ROBERTO; BERGAMO, EDMARA TATIELY PEDROSO; ALVES, LARISSA MARCIA MARTINS; JALKH, ERNESTO BYRON BENALCAZAR; THIM, GILMAR PATROCINIO; SANTOS, CLAUDINEI; COELHO, PAULO G.; BONFANTE, ESTEVAM AUGUSTO. Glass infiltration in an experimental ATZ ceramic composite reinforced with Al2O3 whiskers. JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS, v. 164, p. 12-pg., 2025-04-01. (21/06730-7, 22/07157-1, 21/07440-2, 20/12874-9, 21/08018-2, 19/08693-1)

STRAZZI-SAHYON, H. B.; CAMPOS, T. M. B.; DOS SANTOS, C.; PIZA, M. M. T.; ALVES, L. M. M.; JALKH, E. B. BENALCAZAR; BERGAMO, E. T. P.; TEBCHERANI, S. M.; WITEK, L.; COELHO, P. G.; et al. Effect of calcination on minimally processed recycled zirconia powder derived from milling waste. Dental Materials, v. 40, n. 9, p. 10-pg., 2024-08-14. (21/07440-2, 21/06730-7, 16/18818-8, 20/12874-9, 19/08693-1, 22/12118-5, 22/07157-1)

BENALCAZAR-JALKH, ERNESTO B.; BERGAMO, EDMARA T. P.; CAMPOS, TIAGO M. B.; COELHO, PAULO G.; SAILER, IRENA; YAMAGUCHI, SATOSHI; ALVES, LARISSA M. M.; WITEK, LUKASZ; TEBCHERANI, SERGIO M.; BONFANTE, ESTEVAM A.. A Narrative Review on Polycrystalline Ceramics for Dental Applications and Proposed Update of a Classification System. MATERIALS, v. 16, n. 24, p. 22-pg., 2023-12-01. (18/03072-6, 21/07440-2, 12/19078-7, 19/00452-5, 22/07157-1, 16/18818-8, 21/08018-2, 20/12874-9, 19/08693-1, 22/05495-7, 21/06730-7)

GALLI, M. Z.; CAMPOS, T. M. B.; BENALCAZAR-JALKH, E. B.; ALVES, L. M. M.; MARUN, M. M.; SOUSA, E. O.; YAMAGUCHI, S.; THIM, G. P.; GIERTHMUEHLEN, P. C.; MONTEIRO-SOUSA, R. S.; et al. Processing and characterization of an experimental bilayer first-generation 3Y-TZP and super-translucent 4Y-PSZ zirconia subjected to hydrothermal aging. MATERIALS TODAY COMMUNICATIONS, v. 46, p. 12-pg., 2025-06-01. (23/08712-1, 21/06730-7, 23/07289-8, 20/12874-9, 22/07733-2, 22/05495-7, 21/07440-2, 22/05496-3, 22/07157-1)

SOUSA, EDISA O.; CAMPOS, TIAGO M. B.; BERGAMO, EDMARA T. P.; ALVES, LARISSA M. M.; BENALCAZAR-JALKH, ERNESTO B.; MARUN, MANOELA M.; GALLI, MATEUS Z.; CARVALHO, LAURA F.; THIM, GILMAR PATROCINIO; TEBCHERANI, SERGIO M.; et al. Nanomechanical and microstructural properties of experimental bilayered zirconia ceramics after hydrothermal aging. CERAMICS INTERNATIONAL, v. 50, n. 19, p. 10-pg., 2024-08-09. (21/07440-2, 20/12874-9, 22/05496-3, 21/06730-7, 23/07289-8, 22/07733-2, 22/05495-7, 22/07157-1, 23/02142-9)

CAMPOS, TIAGO MOREIRA BASTOS; DOS SANTOS, CLAUDINEI; ALVES, LARISSA MARCIA MARTINS; BENALCAZAR-JALKH, ERNESTO B.; STRAZZI-SAHYON, HENRICO BADAOUI; BERGAMO, EDMARA T. P.; TEBCHERANI, SERGIO MAZUREK; WITEK, LUKASZ; COELHO, PAULO G.; YAMAGUCHI, SATOSHI; et al. Minimally processed recycled yttria-stabilized tetragonal zirconia for dental applications: Effect of sintering temperature on glass infiltration. JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS, v. 150, p. 9-pg., 2023-12-20. (21/07440-2, 21/06730-7, 22/07157-1, 20/12874-9, 19/08693-1, 22/12118-5, 21/08018-2)

CARVALHO, LAURA F.; BERGAMO, EDMARA T. P.; CAMPOS, TIAGO M. B.; FERMINO, ELISA S.; ALVES, LARISSA M. M.; BENALCAZAR-JALKH, ERNESTO B.; SOUSA, EDISA O.; COELHO, PAULO G.; WITEK, LUKASZ; TEBCHERANI, SERGIO M.; et al. Characterization of a hydrothermally aged experimental alumina-toughened zirconia composite. Dental Materials, v. 40, n. 9, p. 13-pg., 2024-08-14. (21/07440-2, 12/19078-7, 22/07157-1, 16/18818-8, 22/13426-5, 20/12874-9, 21/08018-2, 22/07733-2, 21/06730-7, 23/07289-8, 19/08693-1)

BENALCAZAR-JALKH, ERNESTO B.; CAMPOS, TIAGO M. B.; DOS SANTOS, CLAUDINEI; ALVES, LARISSA M. M.; CARVALHO, LAURA F.; BERGAMO, EDMARA T. P.; TEBCHERANI, SERGIO M.; WITEK, LUKASZ; COELHO, PAULO G.; THIM, GILMAR P.; et al. Novel bilayered zirconia systems using recycled 3Y-TZP for dental applications. Dental Materials, v. 41, n. 4, p. 12-pg., 2025-02-28. (21/07440-2, 22/05495-7, 21/06730-7, 22/07733-2, 23/07289-8, 22/07157-1, 19/08693-1, 20/12874-9, 22/05496-3)

SOUSA, EDISA O.; ALVES, LARISSA M. M.; CAMPOS, TIAGO M. B.; BERGAMO, EDMARA T. P.; BENALCAZAR-JALKH, ERNESTO B.; MARUN, MANOELA M.; GALLI, MATEUS Z.; CARVALHO, LAURA F.; DOS SANTOS, CLAUDINEI; TEBCHERANI, SERGIO M.; et al. Experimental bilayer zirconia systems after aging: Mechanical, optical, and microstructural characterization. Dental Materials, v. 41, n. 4, p. 11-pg., 2025-02-28. (22/05496-3, 23/02142-9, 23/07289-8, 21/06730-7, 22/07157-1, 22/05495-7, 22/07733-2, 20/12874-9, 21/07440-2)

STRAZZI-SAHYON, HENRICO B.; BERGAMO, EDMARA T. P.; GIERTHMUEHLEN, PETRA C.; LOPES, ADOLFO C. O.; ALVES, LARISSA M. M.; JALKH, ERNESTO B. BENALCAZAR; ZAHOUI, ABBAS; COELHO, PAULO G.; DE CARVALHO, ALEXANDRE M.; BONFANTE, ESTEVAM A.. In vitro assessment of the effect of luting agents, abutment height, and fatigue on the retention of zirconia crowns luted to titanium base implant abutments. JOURNAL OF PROSTHETIC DENTISTRY, v. 130, n. 5, p. 8-pg., 2023-11-10. (21/07440-2, 21/06730-7, 12/19078-7, 19/14798-0, 16/18818-8, 19/08693-1, 22/12118-5, 22/07157-1)

LIM, CHEK HAI; ALVES, LARISSA M. M.; VARDHAMAN, SONAJ; BONFANTE, ESTEVAM A.; KIM, DO KYUNG; ZHANG, YU. Two-step sintering suppresses grain growth and improves flexural strength of dental zirconia. Dental Materials, v. 41, n. 2, p. 9-pg., 2025-01-16. (21/07440-2, 21/06730-7, 23/07289-8)