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Raman microscopy evaluation of the preventive effect of a modified orthodontic adhesive with silver nanoparticles on the formation of white spot lesions

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dc.contributor.author Sanchez Tito, Marcos Antonio
dc.contributor.author Castañeda Vía, José Alberto
dc.contributor.author Tay Chu Jon, Lidia Yileng
dc.date.accessioned 2023-10-12T15:30:09Z
dc.date.available 2023-10-12T15:30:09Z
dc.date.issued 2023
dc.identifier.uri https://hdl.handle.net/20.500.12866/14294
dc.description.abstract Background: Silver nanoparticles (AgNPs) are an effective antibacterial agent, and their inclusion in orthodontic adhesives has been proposed to prevent white spot lesions (WSLs). The objective of this study was to evaluate by Raman microscopy the preventive effect of an orthodontic adhesive modified with AgNPs on the formation of WSLs. Material and Methods: AgNPs were added in four concentrations (0.05%, 0.1%, 0.5%, and 1%) to an orthodontic adhesive. Metal brackets were bonded with the experimental adhesives, and the specimens were subjected to a microbial model for caries induction. The preventive effect on the formation of WSLs was evaluated by Raman microscopy, considering the intensity peak of the phosphate ion at 960 cm-1. The acquisition mode was linear scanning in the most representative lesion area, with a length of 136μm. Intensity values expressed the relative amount of phosphate ions remaining in the lesion. Microphotographs were analyzed in the Image J program to assess the depth of the lesions. Results: Significant differences were observed between all groups (P <0.05). The addition of 1% AgNPs effectively maintained the relative amount of phosphate ions close to sound enamel values. Furthermore, as the concentration of AgNPs increased, the depth of the lesions decreased. Conclusions: AgNPs were effective in decreasing the formation of WSLs. At a higher concentration of AgNPs, a more significant preventive effect on the formation of WSLs results in a relative amount of phosphate ion close to sound enamel values. en_US
dc.language.iso eng
dc.publisher Medicina Oral
dc.relation.ispartofseries Journal of Clinical and Experimental Dentistry
dc.rights info:eu-repo/semantics/restrictedAccess
dc.rights.uri https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
dc.subject Raman microscopy evaluation en_US
dc.subject Orthodontic adhesive en_US
dc.subject Silver nanoparticles en_US
dc.subject White spot lesions en_US
dc.subject.mesh Espectrometría Raman
dc.subject.mesh Cementos Dentales
dc.subject.mesh Nanopartículas
dc.subject.mesh Caries Dental
dc.title Raman microscopy evaluation of the preventive effect of a modified orthodontic adhesive with silver nanoparticles on the formation of white spot lesions en_US
dc.type info:eu-repo/semantics/article
dc.identifier.doi https://doi.org/10.4317/jced.60531
dc.relation.issn 1989-5488


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