title: Safety and Tolerability of Essential Oil from Cinnamomum zeylanicum Blume Leaves with Action on Oral Candidosis and Its Effect on the Physical Properties of the Acrylic Resin.
abstract: The anti-Candida activity of essential oil from Cinnamomum zeylanicum Blume, as well as its effect on the roughness and hardness of the acrylic resin used in dental prostheses, was assessed. The safety and tolerability of the test product were assessed through a phase I clinical trial involving users of removable dentures. Minimum inhibitory concentration (MIC) and minimum fungicidal concentrations (MFC) were determined against twelve Candida strains. Acrylic resin specimens were exposed to artificial saliva (GI), C. zeylanicum (GII), and nystatin (GIII) for 15 days. Data were submitted to ANOVA and Tukey posttest (α = 5%). For the phase I clinical trial, 15 healthy patients used solution of C. zeylanicum at MIC (15 days, 3 times a day) and were submitted to clinical and mycological examinations. C. zeylanicum showed anti-Candida activity, with MIC = 625.0 µg/mL being equivalent to MFC. Nystatin caused greater increase in roughness and decreased the hardness of the material (P < 0.0001), with no significant differences between GI and GII. As regards the clinical trial, no adverse clinical signs were observed after intervention. The substance tested had a satisfactory level of safety and tolerability, supporting new advances involving the clinical use of essential oil from C. zeylanicum.
authors.affiliation: Post-Graduate Program in Dentistry, Federal University of Paraíba, Campus I, João Pessoa, PB, Brazil.
authors.forename: Julyana de Araújo
authors.initials: Jde A
authors.lastname: Oliveira
authors.affiliation: Post-Graduate Program in Dentistry, Federal University of Paraíba, Campus I, João Pessoa, PB, Brazil.
authors.forename: Ingrid Carla Guedes
authors.initials: IC
authors.lastname: da Silva
authors.affiliation: Post-Graduate Program in Dentistry, Federal University of Paraíba, Campus I, João Pessoa, PB, Brazil.
authors.forename: Leonardo Antunes
authors.initials: LA
authors.lastname: Trindade
authors.affiliation: Post-Graduate Program in Dentistry, Federal University of Paraíba, Campus I, João Pessoa, PB, Brazil.
authors.forename: Edeltrudes Oliveira
authors.initials: EO
authors.lastname: Lima
authors.affiliation: Post-Graduate Program in Dentistry, Federal University of Paraíba, Campus I, João Pessoa, PB, Brazil.
authors.forename: Hugo Lemes
authors.initials: HL
authors.lastname: Carlo
authors.affiliation: Post-Graduate Program in Dentistry, State University of Paraíba, Campina Grande, PB, Brazil.
authors.forename: Alessandro Leite
authors.initials: AL
authors.lastname: Cavalcanti
authors.affiliation: Post-Graduate Program in Dentistry, Federal University of Paraíba, Campus I, João Pessoa, PB, Brazil ; Post-Graduate Program in Dentistry, State University of Paraíba, Campina Grande, PB, Brazil.
authors.forename: Ricardo Dias
authors.initials: RD
authors.lastname: de Castro