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Influence of surface treatments before staining on the wear resistance of a hybrid ceramic

Grant number: 18/07404-3
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:João Paulo Mendes Tribst
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:17/09104-4 - Biomechanical behavior and survival of implant-supported hybrid ceramic crowns manufactured by different techniques, BP.DR

Abstract

The extrinsic characterization (EC) or staining through pigments and glaze application on the surface of ceramic restorations promotes individualization and esthetics. Two surface treatment protocols are proposed for the polymer infiltrated ceramic (PIC, Vita Enamic, Vita Zahnfabrik). However, the question is whether these treatments can have their number of steps reduced and how relevant the glaze layer is over EC. Thus, the present study aims to evaluate the surface wear resistance of the PIC stained and stained+glaze using four different surface treatments prior to the EC. The hybrid ceramic blocks will be sliced through a Diamond Blade wafering machine (Isomet 1000, Precision Sectioning Saw, Buehler, Lake Bluff, Illinois, 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. Then the samples will be divided into eight groups according to the factors "surface treatment" (polishing+silanization, etching with 5% hydrofluoric acid+silanization, sandblasting with aluminum oxide particles+silanization or the use of a self-etching silane) and "staining technique" (stain or stain+glaze). After that, the samples will be submitted to surface roughness analysis and different wear tests: 1) three-body wear simulating the presence of food bolus and antagonist (pH 7, 15 N, 1Hz), and 2) toothbrushing simulation with the presence of toothpaste (2.45 N, 180 brushings/minute). The surfaces will be evaluated by profilometry (Ra) for the EC wear detection during predetermined intervals of 1, 3, 7, 20 and 40 days for three-bory wear and 50,000, 100,000 and 150,000 cycles for toothbrushing wear. The ceramic surfaces without and with EC and after wear tests will be inspected by Scanning Electron Microscopy (SEM). The amount of surface wear by both simulations will be analyzed by pertinent statistical analysis. SEM analyzes will be analyzed 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.
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.
TRIBST, JOAO P. M.; DAL PIVA, AMANDA M. O.; BORGES, ALEXANDRE L. S.; ANAMI, LILIAN C.; KLEVERLAAN, CORNELIS J.; BOTTINO, MARCO A. Survival Probability, Weibull Characteristics, Stress Distribution, and Fractographic Analysis of Polymer-Infiltrated Ceramic Network Restorations Cemented on a Chairside Titanium Base: An In Vitro and In Silico Study. MATERIALS, v. 13, n. 8 APR 2020. Web of Science Citations: 0.
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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