"Filling Particle Characterization and Surface Roughness of Different Composites"

• Grant number: 11/21670-9
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: January 01, 2012
• End date: December 31, 2012
• Field of knowledge: Health Sciences - Dentistry - Dental Materials
• Principal Investigator: Marcelo Giannini
• Grantee: Melissa Araújo Ruivo
• Host Institution: Faculdade de Odontologia de Piracicaba (FOP). Universidade Estadual de Campinas (UNICAMP). Piracicaba , SP, Brazil

Abstract

Resin composites compositions have been modified in order to improve both aesthetics and properties, and these changes may occur in the organic portion and/or the inorganic content of these materials. The aim of this study is to evaluate five different resin composites with different formulations regarding: surface roughness after finishing and polishing procedures, polished surface analisys on scanning electron microscopy (MEV), and characteristics of filling particles. The composites to be evaluated include a conventional formulated resin composite (Z100, 3M ESPE), two nanoparticle composites (Filtek Z350, 3M ESPE e Estelite Sigma, Tokuyama), a composite resin with fluoride release properties (Beautiful II, Shofu) and a self-adhesive composite resin (Dyad Flow, Kerr). Finishing and polishing discs will be used according to manufacturer's recommendation (Sof-Lex - 3M ESPE). The specimens shall be prepared according to each methodology to be employed, and after 1 week and 6 months of storage (in water and brushing for 30,000 cycles) the surface roughness and surface morphology (by SEM) will be evaluated, except for the characterization of filling particles. The results will be tabulated and subjected to statistical analysis for comparison of results between experimental groups.

Scientific publications

(The scientific publications listed on this page originate from the Web of Science or SciELO databases. Their authors have cited FAPESP grant or fellowship project numbers awarded to Principal Investigators or Fellowship Recipients, whether or not they are among the authors. This information is collected automatically and retrieved directly from those bibliometric databases.)

RUIVO, MELISSA A.; PACHECO, RAFAEL R.; SEBOLD, MAICON; GIANNINI, MARCELO. Surface roughness and filler particles characterization of resin-based composites. MICROSCOPY RESEARCH AND TECHNIQUE, v. 82, n. 10, JULY 2019. (11/21670-9)