Incorporação de clorexidina em diferentes cimentos de ionômero de vidro: microdureza superficial e MEV

• Ano de defesa: 2020
• Autor(a) principal: Hirata, Francielle Carneiro
• Orientador(a): Camilotti, Veridiana
• Banca de defesa: Camilotti, Veridiana , Mendonça, Marcio José , Bocardi, Juliane Maria Bergamin
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Estadual do Oeste do Paraná; Cascavel
• Programa de Pós-Graduação: Programa de Pós-Graduação em Odontologia
• Departamento: Centro de Ciências Biológicas e da Saúde
• País: Brasil
• Palavras-chave em Português: Cimento de Ionômero de Vidro; Clorexidina; Microscopia Eletrônica de Varredura; Testes de Dureza; Scanning Electron Microscopy; Hardness Tests
• Palavras-chave em Inglês: Glass Ionomer Cement; Chlorhexidine
• Área do conhecimento CNPq: CIENCIAS DA SAUDE::ODONTOLOGIA
• Link de acesso: http://tede.unioeste.br/handle/tede/5182

Objective: To evaluate the effect of adding chlorhexidine digluconate (CHX) to the liquid of the glass ionomer cement in terms of surface microhardness and MEV. Materials and methods: Two CIVMR were provided and handled according to each manufacturer Vitremer (3M (ESPE) / St Paul / United States) and Riva Light Cure (SDI / Victoria / Australia). The CHX was incorporated into the liquid of each material in concentrations of 05%, 1% and 2%. Specimens were made with 4 mm in diameter and 2 mm in thickness, and divided according to the concentration of CHX and storage time (2, 7 and 30 days) in a total of eight groups with n = 10. Making the CP were immersed in saline, stored at 37 ºC. After 2, 7 and 30 days, they were submitted to Knoop microhardness. Results: Regarding microhardness, in 2 days of storage the Riva Light Cure 2% concentration showed higher values. Vitremer revealed significant differences between 1 and 2%. MEV analysis indicated a smoother surface for Riva Light Cure 1% after 30 days. Conclusion: CHX did not affect the microhardness properties of the studied CIVs. Vitremer showed superior behavior in most concentrations compared to Riva Light Cure. MEV showed that the immersion time caused more changes in the surface than the addition of CHX.