New bactericide orthodonthic archwire: NiTi with silver nanoparticles
Autor/a
Gil Mur, Francisco Javier
Espinar Escalona, Eduardo
Clusellas, Núria
Fernandez-Bozal, Javier
Artés Ribas, Montserrat
Puigdollers, Andreu
Data de publicació
2020ISSN
2075-4701
Resum
A potential new bactericide treatment for NiTi orthodontic archwires based in the electrodeposition of silver nanoparticles on the surface was studied. Twenty-five archwires were treated by electrodeposition, obtaining nanoparticles of silver embedded on the archwire surface. These were evaluated in order to investigate the possible changes on the superelastic characteristics (critical temperatures and stresses), the nickel ion release, and the bacteria culture behavior. The chemical composition was analyzed by Energy Dispersive X-Ray Spectroscopy-microanalysis; the singular temperatures of the martensitic transformation were obtained by a flow calorimeter. Induced martensitic transformation stresses were obtained by mechanical testing apparatus. Nickel ion release was analyzed by inductively coupled plasma-mass spectrometry (ICP-MS) equipment using artificial saliva solution at 37 °C. Bacterial tests were studied with the most used oral bacterial strains: Streptococcus sanguinis and Lactobacillus salivarius. NiTi samples were immersed in bacterial suspensions for 2 h at 37 °C. Adhered bacteria were separated and seeded on agar plates: Tood-Hewitt (TH) and Man-Rogosa-Sharpe (MRS) for S. sanguinis and for L.salivarius, respectively. These were then incubated at 37 °C for 1 day and the colonies were analyzed. The results showed that the transformation temperatures and the critical stresses have not statistically significant differences. Likewise, nickel ion release at different immersion times in saliva at 37 °C does not present changes between the original and treated with silver nanoparticles archwires. Bacteria culture results showed that the reduction of the bacteria due to the presence to the nanoparticles of silver is higher than 90%. Consequently, the new treatment with nanoparticles of silver could be a good candidate as bactericidic orthodontic archwire.
Tipus de document
Article
Versió del document
Versió acceptada
Llengua
Anglès
Matèries (CDU)
616.3 - Patologia de l'aparell digestiu. Odontologia
Paraules clau
Ortodòncia
Bacteris
Plata
Ortodoncia
Bacterias
Plata
Orthodontics
Bacteria
Silver
Pàgines
12
Publicat per
MDPI
Col·lecció
10;6
Publicat a
Metals
Citació
Gil Mur, Francisco Javier; Espinar-Escalona, Eduardo; Clusellas, Nuria [et al.]. New bactericide orthodonthic archwire: NiTi with silver nanoparticles. Metals, 2020, 10(6), p. 1-12. Disponible en: <https://www.mdpi.com/2075-4701/10/6/702>. Fecha de acceso: 20 jun. 2020. DOI: 10.3390/met10060702
Número de l'acord de la subvenció
info:eu-repo/grantAgreement/MICINN/RTI2018-098075-B-C22
Aquest element apareix en la col·lecció o col·leccions següent(s)
- Odontologia [228]
Drets
© 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open accessarticle distributed under the terms and conditions of the Creative Commons Attribution(CC BY) license (http://creativecommons.org/licenses/by/4.0/).
Excepte que s'indiqui una altra cosa, la llicència de l'ítem es descriu com https://creativecommons.org/licenses/by/4.0/