title: Toothbrush efficacy for plaque removal.
abstract: OBJECTIVE
  To determine the effectiveness of a novel sonic toothbrush in reducing plaque and in maintenance of gingival health when compared to a standard manual brush.
  
  
  METHODS
  This study was a block-randomized, examiner-blind, two-treatment, parallel group, single centre clinical investigation. A total of 84 subjects were enrolled and randomly assigned to receive either the Panasonic EW-DL90 or an American Dental Association-endorsed manual toothbrush. Subjects were instructed to follow a twice-daily brushing regimen without flossing. Plaque levels and gingival health were assessed at baseline and after 1 and 3 weeks of treatment using the Turesky Modification of the Quigley-Hein Plaque Index and the Papillary Bleeding Score.
  
  
  RESULTS
  Subjects assigned to the EW-DL90 group had significantly lower plaque levels after 1 and 3 weeks of treatment than those in the manual group (P = 0.003 and 0.0035, respectively). Both groups showed a reduction in plaque levels at Week 3 relative to baseline. The EW-DL90 group had significantly lower gingival inflammation scores after 1 week of treatment (P = 0.0293), but there was no difference between groups after 3 weeks of treatment.
  
  
  CONCLUSIONS
  The EW-DL90 toothbrush safely and effectively removes more plaque than a standard manual toothbrush. Improvement in gingival inflammation was observed after 1 week of treatment. There was no difference in Papillary Bleeding Score between the two groups after 3 weeks of treatment.
  
  
  CONCLUSIONS
  The newly developed sonic brush (Panasonic EW-DL90) tested in this study was found to be more effective than a manual toothbrush at plaque removal. The papillary bleeding scores were significantly lower in the sonic brush group after 1 week of product use. After 3 weeks of product use, both treatment groups had similar papillary bleeding scores almost returning to baseline values.
authors.affiliation: NYU Bluestone Center for Clinical Research, College of Dentistry, New York, NY, USA.
authors.forename: K J
authors.initials: KJ
authors.lastname: Nightingale
authors.forename: S K
authors.initials: SK
authors.lastname: Chinta
authors.forename: P
authors.initials: P
authors.lastname: Agarwal
authors.forename: M
authors.initials: M
authors.lastname: Nemelivsky
authors.forename: A C
authors.initials: AC
authors.lastname: Frisina
authors.forename: Z
authors.initials: Z
authors.lastname: Cao
authors.forename: R G
authors.initials: RG
authors.lastname: Norman
authors.forename: G S
authors.initials: GS
authors.lastname: Fisch
authors.forename: P
authors.initials: P
authors.lastname: Corby
mesh_terms: D000328:Adult; D004396:Coloring Agents; D003773:Dental Plaque / Q000628:therapy*; D003774:Dental Plaque Index; D004867:Equipment Design; D005260:Female; D005500:Follow-Up Studies; D005884:Gingival Hemorrhage / Q000517:prevention & control; D005891:Gingivitis / Q000517:prevention & control; D006801:Humans; D008297:Male; D008875:Middle Aged; D010512:Periodontal Index; D016037:Single-Blind Method; D013010:Sonication; D014099:Toothbrushing / Q000295:instrumentation*; D016896:Treatment Outcome; D055815:Young Adult
chemical_list: D004396:Coloring Agents
keywords: dental plaque; flossing; gingivitis; toothbrush