Autor(es): Reina, Bárbara Donadon [UNESP] ; Neto, Carolina Santezi ; Garcia, Patrícia Petromilli Nordi Sasso [UNESP] ; Chorilli, Marlus [UNESP] ; Calixto, Giovana Maria Fioramonti ; Dovigo, Lívia Nordi [UNESP]
Data: 2022
Identificador Persistente: http://hdl.handle.net/11449/229526
Origem: Oasisbr
Assunto(s): Composite resins; Curcumin; Liquid crystals; Photochemotherapy; Photosensitizing agents
Made available in DSpace on 2022-04-29T08:33:05Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-09-01
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Curcumin-mediated Photodynamic Inactivation (PDI) has shown great potential to disinfect specific sites on tooth enamel but may involve contact with restorative materials. Thus, before use in dentistry, it is necessary to investigate whether the PDI protocol causes undesirable changes in the surfaces of aesthetic restorative materials and dental enamel. This study investigated the effect of PDI mediated by curcumin (CUR) in a liquid crystal precursor system on color stability (∆E), surface roughness (Ra), and microhardness (kgf) of three different composite resins and bovine dental enamel specimens. The microhardness and roughness readings were performed 60 days after the treatments while the color readings were performed immediately, 24, 48, and 72 h, 7, 14, 21, 30, and 60 days after the treatments. Results showed that CUR mediated-PDI does not seem to have the potential to promote any esthetic or mechanical changes to the surface of tooth enamel and can be applied safely in clinical practice. However, the results on color, roughness, and hardness obtained for composite resins show that some negative effects can be produced, depending on the type of restorative material; more experiments must be performed with different formulations and, perhaps, with lower concentrations of CUR.
Department of Social Dentistry School of Dentistry São Paulo State University (UNESP), Rua Humaitá 1680
Independent Researcher the Moment of the Submission (Unaffiliated Researcher)
Department of Drugs and Medicines School of Pharmacy São Paulo State University (UNESP), Rodovia Araraquara-Jaú, Km. 1
Department of Biosciences Piracicaba Dental School University of Campinas (UNICAMP), Avenida Limeira
Department of Social Dentistry School of Dentistry São Paulo State University (UNESP), Rua Humaitá 1680
Department of Drugs and Medicines School of Pharmacy São Paulo State University (UNESP), Rodovia Araraquara-Jaú, Km. 1
FAPESP: 2013/15770-6
