Banca de QUALIFICAÇÃO: BÁRBARA FARIA DE SÁ BARBOSA

Uma banca de QUALIFICAÇÃO de DOUTORADO foi cadastrada pelo programa.
STUDENT : BÁRBARA FARIA DE SÁ BARBOSA
DATE: 06/11/2025
TIME: 08:00
LOCAL: Departamento de Odontologia - SALA 05
TITLE:

DEVELOPMENT OF A PLANT-DERIVED NANOSTRUCTURED ANTIMICROBIAL COMPLEX FOR THE FUNCTIONALIZATION OF DIRECT RESTORATIVE MATERIALS

KEY WORDS:

montmorillonite, gallic acid, dental resin, dental adhesive, in vitro techniques.

PAGES: 29
BIG AREA: Ciências da Saúde
AREA: Odontologia
SUMMARY:

Background: Caries lesions adjacent to direct restorative materials remain a major cause of treatment failure, driving the development of materials capable of gradually releasing antimicrobial agents. In this context, incorporating controlled-release systems for antimicrobial agents, particularly phytotherapeutics, into direct restorative materials may offer a viable solution. Purpose: To develop a controlled-release system for an antimicrobial phytotherapeutic agent using nanoclay and evaluate its effect when incorporated into composite resin and adhesive systems. Methods: Gallic acid will be incorporated into montmorillonite to create the release system, which will subsequently be included in a composite resin and adhesive system. Following the incorporation of this complex into direct restorative materials, analytical techniques, such as scanning electron microscopy, energy-dispersive spectroscopy, and X-ray diffraction, will be performed to confirm the inclusion of gallic acid in the montmorillonite. Subsequently, controlled release tests for gallic acid, antibacterial activity, degree of conversion, surface roughness, hardness, flexural strength, elastic modulus, and dentin bond durability will be performed. Expected results: The restorative materials developed in this study are anticipated to exhibit antibacterial properties through the release of the active agent while maintaining their physical properties. These features could render them promising allies in preventing caries lesions adjacent to composite resin restorations.

COMMITTEE MEMBERS:
Presidente - 2042290 - BONIEK CASTILLO DUTRA BORGES
Externa ao Programa - 1247082 - DIANA FERREIRA GADELHA DE ARAUJO - UFRNExterno à Instituição - ISABELA PINHEIRO CAVALCANTI LIMA - UERN