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The effect of wear on the shade characterization of different monolithic ceramics

Grant number: 18/03984-5
Support type:Scholarships abroad - Research Internship - Doctorate
Effective date (Start): September 03, 2018
Effective date (End): September 02, 2019
Field of knowledge:Health Sciences - Dentistry - Dental Materials
Principal Investigator:Marco Antonio Bottino
Grantee:Amanda Maria de Oliveira Dal Piva
Supervisor abroad: Cornelis Johannes Kleverlaan
Home Institution: Instituto de Ciência e Tecnologia (ICT). Universidade Estadual Paulista (UNESP). Campus de São José dos Campos. São José dos Campos , SP, Brazil
Local de pesquisa : Academic Centre for Dentistry Amsterdam (ACTA), Netherlands  
Associated to the scholarship:17/11535-3 - Influence of ceramic thickness on biomechanical behavior, survival and translucency of monolithic crowns, BP.DR


Regardless the materials properties, the vast majority of ceramic restorations require an individualization through the extrinsic characterization (EC) called staining. The present study aims to evaluate the wear resistance of different monolithic ceramics. High translucent zirconia (YZ HT), zirconia reinforced lithium silicate (ZLS), polymer infiltrated ceramic (PIC) and feldspathic ceramic (VMII) from Vita Zahnfabrik will be sliced through a cutting machine (Isomet 1000, Precision Sectioning Saw, Buehler, Lake Bluff, Illinois, USA) with diamond disk (Series 15LC Diamond Blade wafering, Buehler, USA) under constant water irrigation. Afterwards, the specimens will be polished with # 600 sandpaper and cleaned in an ultrasonic bath with isopropyl alcohol for 5 minutes. The ZLS and YZ HT samples will be crystallized/sintered in specific ovens. Then, the samples will be extrinsically characterized according to the manufacturer's recommendation and then submitted to surface roughness analysis and different wear simulation tests: 1) three-body wear simulating the presence of food bolus and antagonist (pH 7, 15 N, 1Hz) and 2) simulation of toothbrushing with the presence of toothpaste (2.45 N, 180 brushings per minute). Before the wear simulation and during predetermined intervals of 1, 3, 7, 20 and 40 days for the three-body wear and 50,000, 100,000 and 150,000 cycles for the brushing test, the surface will be evaluated through profilometry (Ra, Rz e RSm) to detect wear of the EC layer. The surfaces with EC, without EC and with wear will be inspected by Scanning Electron Microscopy (SEM). Dispersive Energy Spectroscopy (EDAX) will be performed for chemical evaluation of the presence of EC on surfaces during wear intervals. The amount of wear by both simulations will be analyzed by statistical analysis. SEM and EDAX analysis will be interpreted qualitatively. The results will be discussed according to relevant literature. (AU)

Scientific publications (4)
(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)
TRIBST, JOAO P. M.; DAL PIVA, AMANDA M. O.; WERNER, ARIE; ANAMI, LILIAN C.; BOTTINO, MARCO A.; KLEVERLAAN, CORNELIS J. Durability of staining and glazing on a hybrid ceramics after the three-body wear. JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS, v. 109, SEP 2020. Web of Science Citations: 0.
DE OLIVEIRA DAL PIVA, AMANDA MARIA; MENDES TRIBST, JOAO PAULO; VENTURINI, ANDRESSA BORIN; ANAMI, LILIAN COSTA; BONFANTE, ESTEVAM AUGUSTO; BOTTINO, MARCO ANTONIO; KLEVERLAAN, CORNELIS JOHANNES. Survival probability of zirconia-reinforced lithium silicate ceramic: Effect of surface condition and fatigue test load profile. Dental Materials, v. 36, n. 6, p. 808-815, JUN 2020. Web of Science Citations: 0.
TRIBST, JOAO PAULO MENDES; DAL PIVA, AMANDA MARIA DE OLIVEIRA; BOTTINO, MARCO ANTONIO; KLEVERLAAN, CORNELIS JOHANNES; KOOLSTRA, JAN HARM. Mouthguard use and TMJ injury prevention with different occlusions: A three-dimensional finite element analysis. DENTAL TRAUMATOLOGY, v. 36, n. 6 JUN 2020. Web of Science Citations: 2.
DAL PIVA, AMANDA M. O.; TRIBST, JOAO P. M.; WERNER, ARIE; ANAMI, LILIAN C.; BOTTINO, MARCO A.; KLEVERLAAN, CORNELIS J. Three-body wear effect on different CAD/CAM ceramics staining durability. JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS, v. 103, MAR 2020. Web of Science Citations: 0.

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