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Effect of an orthodontic resin modified with silver-nanoparticles on enamel color change
BACKGROUND: To evaluate the effect of an orthodontic resin modified with various concentrations of silver-nanoparticles (AgNPs) on enamel color. MATERIAL AND METHODS: Twenty lower premolars were collected and divided into four groups (n = 5) according to the concentration of AgNPs (0.05%, 0.1%, 0.5%...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Medicina Oral S.L.
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8916600/ https://www.ncbi.nlm.nih.gov/pubmed/35317288 http://dx.doi.org/10.4317/jced.59224 |
Sumario: | BACKGROUND: To evaluate the effect of an orthodontic resin modified with various concentrations of silver-nanoparticles (AgNPs) on enamel color. MATERIAL AND METHODS: Twenty lower premolars were collected and divided into four groups (n = 5) according to the concentration of AgNPs (0.05%, 0.1%, 0.5%, and 1% wt/wt). Additionally, a group bonded with a conventional resin was used as control (n=5). Previous to the bracket bonding, enamel color was measuring with a spectrophotometer. Specimens were stored for 6 months in deionized water. Brackets were debonded and color changes of enamel were calculated with the CIEDE 2000 formula (∆E00). One-way ANOVA and Tukey test were used to assess the color change (α = .05). RESULTS: The control group showed the lowest ∆E00 values, and no significant difference was observed when compared to the group with 0.05% of AgNPs (P > .05). The highest color change was observed in the group with 1% of AgNPs (∆E00 = 8.04±1.48), however no significant difference was observed between groups with 0.1% and 0.5% AgNPs. CONCLUSIONS: The incorporation of AgNPs into orthodontic resin result in tooth color alteration. Lower concentrations of AgNPs should be considered to minimize negative changes in enamel color. Key words:White spot lesions, antibacterial, orthodontics, adhesive, Silver-nanoparticles. |
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