Physical and mechanical characterization of a multilayered system using recycled zirconia

• Grant number: 22/07157-1
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• Effective date (Start): July 01, 2022
• Effective date (End): June 30, 2025
• Field of knowledge: Health Sciences - Dentistry - Dental Materials
• Principal Investigator: Estevam Augusto Bonfante
• Grantee: Ernesto Byron Benalcazar Jalkh
• Host Institution: Faculdade de Odontologia de Bauru (FOB). Universidade de São Paulo (USP). Bauru , SP, Brazil
• Associated research grant: 21/06730-7 - Towards sustainable zirconia recycled from milling waste and boosted by glass infiltration for restorative use, and of the development of strong, graded, and aging resistant multilayered zirconia blocks, AP.JP2

Abstract

The objective of the present study will be the achievement of an environmentally sustainable 3Y-TZP system, and to investigate the optical and mechanical performance of a multilayered system with recycled 3Y-TZP. Commercial zirconia powders (3Y-TZP, 4Y-PSZ, and 5Y-PSZ) will be acquired. 3Y-TZP for recycling process will be obtained from powders remainders in the vacuum system of CAD/CAM machines and blocks remainders. Disaggregation will be performed using a ball milling or a higher intensity orbital milling, as well as hydrothermal treatment. The dilatometry and particle size distribution of the powers will be characterized. Multilayered zirconia discs will be processed via successive uniaxial pressing, where the first layer will consist of commercial or recycled 3Y-TZPs. After sintering and polishing, half of the specimens will be aged and characterized by Scanning Electron Microscopy (SEM) and X-Ray Diffraction (XRD). The density will be determined using Archimedes principle. Optical properties will be evaluated in a spectrophotometer using reflectance tests. The hardness will be calculated using Vickers indentation test. The hardness and elastic modulus gradient through layers by nanoindentation. The biaxial flexural strength test will be conducted to determine the probability of survival, Weibull modulus and characteristic strength. (AU)

Publicações científicas

(9)

(Referências obtidas automaticamente do Web of Science e do SciELO, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores)

GUTIERRES, ELIEZER; BERGAMO, EDMARA TATIELY PEDROSO; CARVALHO, LAURA FIRMO; COELHO, PAULO G.; CAMPOS, TIAGO MOREIRA BASTOS; PIZA, MARIANA MIRANDA DE TOLEDO; LOPES, ADOLFO COELHO DE OLIVEIRA; JALKH, ERNESTO BYRON BENALCAZAR; BONFANTE, ESTEVAM AUGUSTO. Single geometry abutment for narrow and extra-narrow implant systems: Survival and failure modes. JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS, v. 143, p. 9-pg., 2023-05-16. (21/06730-7, 19/08693-1, 22/07157-1, 20/12874-9)

BERGAMO, EDMARA T. P.; CAMPOS, TIAGO M. B.; PIZA, MARIANA M. T.; GUTIERREZ, ELIEZER; LOPES, ADOLFO C. O.; WITEK, LUKASZ; COELHO, PAULO G.; CELESTRINO, MARCOS; CARVALHO, LAURA F. DE; BENALCAZAR, ERNESTO B.; et al. Temporary materials used in prosthodontics: The effect of composition, fabrication mode, and aging on mechanical properties. JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS, v. 133, p. 10-pg., 2022-07-12. (20/12874-9, 20/16500-6, 21/06730-7, 19/08693-1, 22/07157-1, 21/08018-2, 19/14798-0, 16/18818-8)

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)

BERGAMO, EDMARA T. P.; LOPES, ADOLFO C. O.; CAMPOS, TIAGO M. B.; AMORIM, PEDRO HENRIQUE; COSTA, FABIO; BENALCAZAR-JALKH, ERNESTO B.; DE CARVALHO, LAURA F.; ZAHOUI, ABBAS; PIZA, MARIANA M. T.; GUTIERRES, ELIEZER; et al. Probability of survival and failure mode of endodontically treated incisors without ferrule restored with CAD/CAM fiber-reinforced composite (FRC) post-cores. JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS, v. 136, p. 10-pg., 2022-10-21. (21/06730-7, 19/00452-5, 20/12874-9, 12/19078-7, 21/08018-2, 19/14798-0, 16/18818-8, 20/16500-6, 22/07157-1, 18/03072-6)

JALKH, ERNESTO B. BENALCAZAR; BERGAMO, EDMARA T. P.; CAMPOS, TIAGO M. B.; DE ARAUJO-JUNIOR, EVERARDO N. S.; LOPES, ADOLFO C. O.; TEBCHERANI, SERGIO M.; YAMAGUCHI, SATOSHI; GENOVA, LUIS A.; GIERTHMUEHLEN, PETRA C.; WITEK, LUKASZ; et al. Stability of fatigued and aged ZTA compared to 3Y-TZP and Al2O3 ceramic systems. JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS, v. 135, p. 9-pg., 2022-11-01. (19/08693-1, 17/19362-0, 21/06730-7, 16/17793-1, 19/00452-5, 18/03072-6, 12/19078-7, 16/18818-8, 21/08018-2, 22/07157-1)

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.; NAYAK, VASUDEV VIVEKANAND; GORY, CHRISTINA; MARQUEZ-GUZMAN, ANDRES; BERGAMO, EDMARA T. P.; TOVAR, NICK; COELHO, PAULO G.; BONFANTE, ESTEVAM A.; WITEK, LUKASZ. Impact of implant thread design on insertion torque and osseointegration: a preclinical model. MEDICINA ORAL PATOLOGIA ORAL Y CIRUGIA BUCAL, v. 28, n. 1, p. 8-pg., 2023-01-01. (21/06730-7, 19/00452-5, 12/19078-7, 21/08018-2, 16/18818-8, 19/08693-1, 22/07157-1, 18/03072-6)

PACHECO-VERGARA, MARIA JESUS; BENALCAZAR-JALKH, ERNESTO BYRON; NAYAK, VASUDEV V.; BERGAMO, EDMARA T. P.; CRONSTEIN, BRUCE; ZETOLA, ANDRE LUIS; WEISS, FERNANDO PESSOA; GROSSI, JOAO RICARDO ALMEIDA; DELIBERADOR, TATIANA MIRANDA; COELHO, PAULO G.; et al. Employing Indirect Adenosine 2(A) Receptors (A(2A)R) to Enhance Osseointegration of Titanium Devices: A Pre-Clinical Study. JOURNAL OF FUNCTIONAL BIOMATERIALS, v. 14, n. 6, p. 13-pg., 2023-06-01. (21/08018-2, 19/08693-1, 19/00452-5, 22/07157-1, 18/03072-6)