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Nanoneedle-like zinc oxide as a filler particle for an experimental adhesive resin.
Leitune, Vicente Castelo Branco; Schiroky, Priscila Raquel; Genari, Bruna; Camassola, Melissa; S, Felipe Antonio Lucca; Samuel, Susana Maria Werner; Collares, Fabrício Mezzomo.
Afiliación
  • Leitune VCB; Department of Conservative Dentistry, Dental Materials Laboratory - LAMAD, School of Dentistry, Federal University of Rio Grande do Sul, RS, Brazil.
  • Schiroky PR; Department of Conservative Dentistry, Dental Materials Laboratory - LAMAD, School of Dentistry, Federal University of Rio Grande do Sul, RS, Brazil.
  • Genari B; Department of Conservative Dentistry, Dental Materials Laboratory - LAMAD, School of Dentistry, Federal University of Rio Grande do Sul, RS, Brazil.
  • Camassola M; Department of Genetics, Laboratory of Stem Cells and Tissue Engineering, Brazilian Lutheran University, RS, Brazil.
  • S FAL; Department of Materials, Laboratory of Ceramic Materials, Federal University of Rio Grande do Sul, RS, Brazil.
  • Samuel SMW; Department of Conservative Dentistry, Dental Materials Laboratory - LAMAD, School of Dentistry, Federal University of Rio Grande do Sul, RS, Brazil.
  • Collares FM; Department of Conservative Dentistry, Dental Materials Laboratory - LAMAD, School of Dentistry, Federal University of Rio Grande do Sul, RS, Brazil.
Indian J Dent Res ; 30(5): 777-782, 2019.
Article en En | MEDLINE | ID: mdl-31854373
AIM: The aim of this study was to develop an experimental adhesive resin with nanoneedle-like zinc oxide (N-ZnO), an inorganic filler, that could avoid particle agglomeration and lead to a homogeneous stress distribution within the material and characterize it. MATERIALS AND METHODS: N-ZnO particles obtained by a thermal evaporation technique were characterized regarding size and surface area and added at 0 (control), 1, 2, 5, and 10 wt%, to an experimental adhesive resin. The following experimental adhesive resins' properties were assessed: radiopacity, contact angle to conditioned enamel and dentin, color, degree of conversion, flexural strength, resistance to degradation, and cytotoxicity. Statistical analysis was performed using one-way ANOVA and Tukey's post hoc test and paired Student's t-test. RESULTS: Particles presented a mean particle size of 40 nm and a specific surface area of 16 m2/g. N-ZnO10%showed an increased radiopacity when compared to N-ZnO0%. Contact angles were significantly higher for N-ZnO10%at enamel and N-ZnO2%, N-ZnO5%, and N-ZnO10%at dentin. All groups showed color change when compared to N-ZnO0%. Higher the N-ZnO concentration, lower the degree of conversion. There were no significant differences between the groups for flexural strength and resistance to degradation. The addition of N-ZnO showed no difference in cytotoxicity when compared to positive control, N-ZnO0%, and all groups showed higher values than negative control. CONCLUSIONS: N-ZnO possibly exceeded potential limitations due to particles' agglomeration and improved the transference and distribution of stress within the material. It could be effectively used as a filler for adhesive resins.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Óxido de Zinc / Recubrimiento Dental Adhesivo Límite: Humans Idioma: En Revista: Indian J Dent Res Asunto de la revista: ODONTOLOGIA Año: 2019 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: India
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Óxido de Zinc / Recubrimiento Dental Adhesivo Límite: Humans Idioma: En Revista: Indian J Dent Res Asunto de la revista: ODONTOLOGIA Año: 2019 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: India