Influence of the amplitude of different side-to-side toothbrushes on noncontact biofilm removal

Clinical Oral Investigations
Julia C SchmidtClemens Walter

Abstract

To investigate the impact of the lateral deflection of toothbrush bristles (amplitude) of three side-to-side toothbrushes for noncontact biofilm removal in an artificial interdental space model. A three-species biofilm (Porphyromonas gingivalis, Fusobacterium nucleatum, Streptococcus sanguinis) was formed in vitro on protein-coated titanium disks. A flow chamber system was combined with a static biofilm growth model. The amplitudes of three commercial side-to-side toothbrushes were evaluated by means of a dose response analysis. The amplitudes were decreased in steps (100%, 85%, 70%, 55%, and 40%). Subsequently, the biofilm-coated substrates were exposed to the toothbrushes. The biofilms were analyzed with confocal laser scanning microscope images and measured using volumetric analyses. The predictability of interdental biofilm reduction differed among the toothbrushes. A lower variety in the results of repeated experiments occurred in toothbrush C compared to toothbrushes A and B. Toothbrush C obtained highest percentage of biofilm reduction by 85% of amplitude power setting (median biofilm reduction 76%). Decreasing the amplitude from 85 to 40% resulted in reduced biofilm reduction (p = 0.029). In contrast, no significance co...Continue Reading

References

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Sep 25, 2012·Clinical Oral Investigations·Julia C SchmidtClemens Walter
Apr 19, 2013·Journal of Periodontology·Monika Astasov-FrauenhofferTuomas Waltimo
Jul 23, 2013·Clinical Oral Investigations·Julia C SchmidtClemens Walter
Jan 23, 2018·Clinical Oral Investigations·Julia C SchmidtClemens Walter

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