Influence of the oscillation frequency of different side-to-side toothbrushes on noncontact biofilm removal.
Clin Oral Investig
; 22(6): 2141-2147, 2018 Jul.
Article
en En
| MEDLINE
| ID: mdl-29356919
ABSTRACT
OBJECTIVES:
The objective of this study was to investigate the influence of different oscillation frequencies of three powered toothbrushes with side-to-side action for noncontact biofilm removal in an artificial interdental space model. MATERIALS ANDMETHODS:
A three-species biofilm (Porphyromonas gingivalis, Fusobacterium nucleatum and Streptococcus sanguinis) was formed in vitro on protein-coated titanium disks using a flow chamber system combined with a static biofilm growth model. The oscillation frequencies of three commercial side-to-side toothbrushes were evaluated by means of a dose response. The frequency was decreased in steps (100, 85, 70, 55, and 40%). Subsequently, the biofilm-coated substrates were exposed to the side-to-side toothbrushes. The biofilm volumes were measured using volumetric analyses (Imaris 8.1.2) with confocal laser scanning microscope images (Zeiss LSM700).RESULTS:
Compared to maximum oscillation frequency (100%), lower oscillation frequencies (up to 40%) resulted in reduced median percentages of biofilm reduction (median biofilm reduction up to 53% for maximum oscillation frequency, and up to 13% for 40% oscillation frequency) (p ≥ 0.03). In addition, decreasing the oscillation frequencies of the side-to-side toothbrushes showed an enhanced variety in the results of repeated experiments.CONCLUSIONS:
The oscillation frequency of the tested side-to-side toothbrushes affected the biofilm reduction in an interdental space model. CLINICAL RELEVANCE Within a toothbrush, higher oscillation frequencies may lead to beneficial effects on interdental biofilm removal by noncontact brushing.Palabras clave
Texto completo:
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Bases de datos:
MEDLINE
Asunto principal:
Cepillado Dental
/
Biopelículas
Idioma:
En
Revista:
Clin Oral Investig
Asunto de la revista:
ODONTOLOGIA
Año:
2018
Tipo del documento:
Article
País de afiliación:
Suiza