OBJECTIVES: The aim of this study was to evaluate the efficacy of four different powered toothbrushes with side-to-side action for noncontact biofilm removal in vitro. MATERIALS AND METHODS: A three-species biofilm was formed in vitro on protein-coated titanium disks using a flow chamber combined with a static biofilm growth model. Subsequently, the biofilm-coated substrates were exposed to four different side-to-side toothbrushes (A, B, C, and D) with various brushing times (2, 4, and 6 s) and brushing (bristle-to-disk) distances (0, 2, and 4 mm). The biofilm volumes were measured using volumetric analyses with confocal laser scanning microscope images and Imaris version 7.5.2 software. RESULTS: The median percentages of biofilm reduction by the analyzed toothbrushes ranged from 9 % to 80 %. The abilities of the tested toothbrushes to remove the in vitro biofilm differed significantly (p < 0.05). Two of the tested toothbrushes (C and D) were capable of significant biofilm reduction by noncontact brushing. CONCLUSIONS: It was possible to reduce a three-species in vitro biofilm by noncontact brushing with two out of four side-to-side toothbrushes. CLINICAL RELEVANCE: Toothbrushes C and D show in vitro a high efficacy in biofilm removal without bristle contact.
OBJECTIVES: The aim of this study was to evaluate the efficacy of four different powered toothbrushes with side-to-side action for noncontact biofilm removal in vitro. MATERIALS AND METHODS: A three-species biofilm was formed in vitro on protein-coated titanium disks using a flow chamber combined with a static biofilm growth model. Subsequently, the biofilm-coated substrates were exposed to four different side-to-side toothbrushes (A, B, C, and D) with various brushing times (2, 4, and 6 s) and brushing (bristle-to-disk) distances (0, 2, and 4 mm). The biofilm volumes were measured using volumetric analyses with confocal laser scanning microscope images and Imaris version 7.5.2 software. RESULTS: The median percentages of biofilm reduction by the analyzed toothbrushes ranged from 9 % to 80 %. The abilities of the tested toothbrushes to remove the in vitro biofilm differed significantly (p < 0.05). Two of the tested toothbrushes (C and D) were capable of significant biofilm reduction by noncontact brushing. CONCLUSIONS: It was possible to reduce a three-species in vitro biofilm by noncontact brushing with two out of four side-to-side toothbrushes. CLINICAL RELEVANCE: Toothbrushes C and D show in vitro a high efficacy in biofilm removal without bristle contact.
Authors: C E Kazor; P M Mitchell; A M Lee; L N Stokes; W J Loesche; F E Dewhirst; B J Paster Journal: J Clin Microbiol Date: 2003-02 Impact factor: 5.948
Authors: Julia C Schmidt; Monika Astasov-Frauenhoffer; Tuomas Waltimo; Roland Weiger; Clemens Walter Journal: Clin Oral Investig Date: 2016-10-19 Impact factor: 3.573
Authors: Julia C Schmidt; Monika Astasov-Frauenhoffer; Tuomas Waltimo; Roland Weiger; Clemens Walter Journal: Clin Oral Investig Date: 2018-01-22 Impact factor: 3.573
Authors: Julia C Difloe-Geisert; Sarah Fiedler; Eva M Kulik; Nadine Schlueter; Carolina Ganss; Clemens Walter Journal: Clin Oral Investig Date: 2022-01-11 Impact factor: 3.573
Authors: Cassiano Kuchenbecker Rösing; Eduardo Garduño; Sandra Kalil Bussadori; Agustín Zerón; Paulo Vinícius Soares; Marc Saadia; Cristina Cunha Villar Journal: Int J Dent Date: 2022-08-22