title: Efficacy of the Cybersonic in comparison with the Braun 3D Excel and a manual toothbrush.
abstract: OBJECTIVE
  To evaluate the efficacy of two power toothbrushes (Cybersonic and Braun 3D Excel) and one manual brush (Elmex super 29).
  
  
  METHODS
  After professional toothcleaning 120 subjects were randomly assigned to three groups. Four weeks later, at baseline, the Quigley-Hein plaque index (QHI), the modified approximal plaque index (API), and the papillary bleeding index (PBI) were recorded. Thereafter the subjects used the assigned toothbrushes for 8 weeks. Improvements of the indices after 4 and 8 weeks were calculated as medians. Kruskal-Wallis- and Mann-Whitney U-test served for statistical analysis.
  
  
  RESULTS
  All indices showed statistically significant reductions for both power toothbrushes which were superior to the manual brush (4 weeks: Cybersonic: API, 0.21; PBI, 0.25; QHI, 0.23; Braun: API, 0.20; PBI, 0.39; QHI, 0.22; Elmex: API, 0.04; PBI, 0.02; QHI, 0.07; 8 weeks: Cybersonic: API, 0.28; PBI, 0.36; QHI, 0.41; Braun: API, 0.36; PBI, 0.61; QHI, 0.35; Elmex: API, 0.03; PBI, 0.10; QHI, 0.08; p<0.001). The Braun was superior to the Cybersonic with respect to API after 8 weeks (p<0.05) and PBI after 4 and 8 weeks (p<0.01).
  
  
  CONCLUSIONS
  Cybersonic and Braun 3D Excel may be more efficacious than a manual toothbrush in removing plaque and reducing gingivitis.
authors.affiliation: Department of Operative and Preventive Dentistry and Endodontics, Heinrich-Heine-University, Düsseldorf, Germany. zimmer@med.uni-duesseldorf.de
authors.forename: Stefan
authors.initials: S
authors.lastname: Zimmer
authors.forename: Juliane
authors.initials: J
authors.lastname: Strauss
authors.forename: Mozhgan
authors.initials: M
authors.lastname: Bizhang
authors.forename: Tracy
authors.initials: T
authors.lastname: Krage
authors.forename: W H-M
authors.initials: WH
authors.lastname: Raab
authors.forename: Claudia
authors.initials: C
authors.lastname: Barthel
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000704:Analysis of Variance; D003742:Dental Devices, Home Care; D003773:Dental Plaque / Q000628:therapy*; D003774:Dental Plaque Index; D005260:Female; D005891:Gingivitis / Q000517:prevention & control*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010512:Periodontal Index; D018709:Statistics, Nonparametric; D014099:Toothbrushing / Q000295:instrumentation*