Effect of the ratio between DCPD and barium glass particles on the fracture toughness (KIc) of experimental composites

• Grant number: 21/09297-2
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: October 01, 2021
• End date: September 30, 2023
• Field of knowledge: Health Sciences - Dentistry - Dental Materials
• Principal Investigator: Roberto Ruggiero Braga
• Grantee: Beatriz Fonseca Vela
• Host Institution: Faculdade de Odontologia (FO). Universidade de São Paulo (USP). São Paulo , SP, Brazil
• Associated research grant: 19/04737-4 - Dentin remineralization with the use of composite containing calcium orthophosphate particles associated with a Polymer-Induced Liquid Precursor (PILP): material development, in vitro and randomized clinical studies, AP.TEM

Abstract

This project aims to verify the effect of the addition of dicalcium phosphate dihydrate (DCPD) particles on the fracture toughness (KIc) of experimental composites. Composites will be formulated containing equimolar concentrations of BisGMA and TEGDMA and 40% by volume of particles in different proportions between barium glasses (reinforcement) and DCPD. Bars with central notch will be made and stored in water for 24 h and fractured under flexion (single-edge notched beam method). Fulfilled the requirements of normality and homoscedasticity, the data will be analyzed by two-way analysis of variance and Tukey's test (alpha: 5%). (AU)

Scientific publications

(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)

CAMPOS, AMANDA LOPES; VELA, BEATRIZ FONSECA; BORGES, LINCOLN PIRES SILVA; TRINCA, RAFAEL BERGAMO; PFEIFER, CARMEM SILVIA; BRAGA, ROBERTO RUGGIERO. Compositional boundaries for functional dental composites containing calcium orthophosphate particles. JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS, v. 144, p. 9-pg., 2023-06-09. (21/09297-2, 20/13983-6, 19/04737-4, 21/09657-9)