Journal of Periodontal and Implant Science

Korean Academy of Periodontology (대한치주과학회)
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Effects of an electric toothbrush combined with 3-color light-emitting diodes on antiplaque and bleeding control: a randomized controlled study

  • Kwon, Chakyoung (Department of Periodontology, Kyungpook National University School of Dentistry) ;
  • Lee, Jae-Mok (Department of Periodontology, Kyungpook National University School of Dentistry) ;
  • Suh, Jo-Young (Department of Periodontology, Kyungpook National University School of Dentistry) ;
  • Seo, Seung-Jun (Department of Periodontology, Kyungpook National University School of Dentistry) ;
  • Lee, Youngkyun (Department of Biochemistry, Kyungpook National University School of Dentistry) ;
  • Kim, Yong-Gun (Department of Periodontology, Kyungpook National University School of Dentistry)
  • Received : 2020.03.10
  • Accepted : 2020.05.08
  • Published : 2020.08.30
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Abstract

Purpose: This randomized controlled study aimed to evaluate the effects of an electric toothbrush with 3 colors of light-emitting diodes (LEDs) on antiplaque and bleeding control. Methods: This randomized, placebo-controlled, double-blinded, parallel-group clinical trial included 50 healthy adults with gingivitis, who were randomly assigned to 2 groups. The experimental group used electric toothbrushes with 3 colors of LEDs and the control group used the same electric toothbrush as the experimental group, but with LED sources with one-hundredth of the strength. The subjects used the electric toothbrush 3 times a day for 4 minutes each time. As clinical indices, bleeding on marginal probing (BOMP), the Löe-Silness gingival index (GI), and the Turesky-Quigley-Hein plaque index (QHI) were assessed at baseline, at 3 weeks, and at 6 weeks. Results: There were significant decreases in all clinical indices (BOMP, GI, QHI) in both the experimental and control groups compared to baseline at 3 weeks and at 6 weeks. In a comparison between the experimental and control groups, no statistically significant differences were observed for any clinical indices at 3 weeks (P>0.05). However, at 6 weeks, statistically significant differences were observed between the experimental and control groups in BOMP and GI, which are indicators of gingival inflammation (P<0.05). Conclusions: This study demonstrated that an electric toothbrush combined with 3-color LEDs reduced gingival bleeding and inflammation after 6 weeks.

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References

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