Researchers from Valencia (Spain),
London (England) and Sul (Brazil) have performed research to develop
adhesive materials that will prevent white stains from appearing on the
teeth of people who use brackets.
The white stains that orthodontic brackets often leave on teeth is a
result of enamel demineralization caused by bacterial proliferation in
the adhesive area, specially when accompanied by inadequate oral
hygiene. Researchers at the Odontology Department of Valencia’s
Universidad CEU Cardenal Herrera in collaboration with the King’s
College London Dental Institute and the Universidade Federaldo Rio
Grande do Sul (Brazil) have compared the efficacy of three new types of
experimental adhesives, with bactericidal and enamel remineralisation
properties which could prevent the appearance of these white stains
around the brackets.
The research has been published in the Journal of Dentistry scientific magazine, one of the most prestigious in the field on an international level.
Bactericidal and remineralisation properties
The study compares three experimental dental adhesives which contain a bioactive nano-mineral called halloysite and whose nanotubes have been loaded with triclosan, a strong antibacterial and fungicidal agent in different concentrations: 5, 10 and 20 per cent. The research compares the three new, experimental biomaterials’ polymerisation properties, their antibacterial strength and bioactive properties, which not only prevent demineralization of the teeth, but also promote remineralisation.
The three experimental materials tested in the laboratory have demonstrated an ability to stop bacterial proliferation in the 24 hours following their use, but only the one with the highest concentration of triclosan, at 20 per cent, has maintained this property after 72 hours. As far as the remineralising effect, all three tested materials have proven to be effective two weeks after their use in dental enamel samples submerged in experimental saliva.
These results are a promising step forward in the development of new adhesives that are capable of preventing the appearance of the bacteria that demineralise the enamel surrounding the brackets and, at the same time, remineralise the area and thus prevent the appearance of white stains on the teeth.
The research has been published in the Journal of Dentistry scientific magazine, one of the most prestigious in the field on an international level.
Bactericidal and remineralisation properties
The study compares three experimental dental adhesives which contain a bioactive nano-mineral called halloysite and whose nanotubes have been loaded with triclosan, a strong antibacterial and fungicidal agent in different concentrations: 5, 10 and 20 per cent. The research compares the three new, experimental biomaterials’ polymerisation properties, their antibacterial strength and bioactive properties, which not only prevent demineralization of the teeth, but also promote remineralisation.
The three experimental materials tested in the laboratory have demonstrated an ability to stop bacterial proliferation in the 24 hours following their use, but only the one with the highest concentration of triclosan, at 20 per cent, has maintained this property after 72 hours. As far as the remineralising effect, all three tested materials have proven to be effective two weeks after their use in dental enamel samples submerged in experimental saliva.
These results are a promising step forward in the development of new adhesives that are capable of preventing the appearance of the bacteria that demineralise the enamel surrounding the brackets and, at the same time, remineralise the area and thus prevent the appearance of white stains on the teeth.
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