dental hygiene and orthodontics: effect of ultrasonic instrumentation on bonding efficacy of different lingual orthodontic brackets

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ID: 234981
2017
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Abstract
Dental hygienists are often faced with patients wearing lingual orthodontic therapy, as ultrasonic instrumentation (UI) is crucial for oral health. As the application of external forces can lead to premature bonding failure, the aim of this study was to evaluate the effect of UI on shear bond strength (SBS) and on adhesive remnant index (ARI) of different lingual orthodontic brackets. 200 bovine incisors were divided into 10 groups. Four different lingual (STB, Ormco; TTR, Rocky Mountain Orthodontics; Idea, Leone; 2D, Forestadent) and vestibular control (Victory, 3M) brackets were bonded. UI was performed in half of specimens, whereas the other half did not receive any treatment. All groups were tested with a universal testing machine. SBS and ARI values were recorded. Statistical analysis was performed (significance: P=0.05). TTR, Idea, and 2D lingual brackets significantly lowered SBS after UI, whereas for other braces no effect was recorded. Appliances with lower mesh area significantly reduced their adhesion capacity after UI. Moreover groups subjected to UI showed higher ARI scores than controls. UI lowered SBS of lingual appliances of small dimensions so particular care should be posed avoiding prolonged instrumentation around bracket base during plaque removal. Moreover, UI influenced also ARI scores.
Reference Key
scribante2017biomeddental Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Andrea Scribante;Maria Francesca Sfondrini;Vittorio Collesano;Gaia Tovt;Luisa Bernardinelli;Paola Gandini
Journal spectrochimica acta - part a: molecular and biomolecular spectroscopy
Year 2017
DOI
10.1155/2017/3714651
URL
http://dx.doi.org/10.1155/2017/3714651
Keywords
Medicine

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