Tooth bleaching using low concentrations of hydrogen peroxide in the presence of a nonthermal plasma jet

Jie Pan, Xiaohui Yang, Ke Sun, Jing Wang, Peng Sun, Haiyan Wu, Kurt H. Becker, Weidong Zhu, Jue Zhang, Jing Fang

Research output: Contribution to journalArticle

Abstract

To investigate the tooth bleaching effect of a low concentration hydrogen peroxide (H2O2) assisted by a nonthermal plasma, extracted human teeth were treated by a nonthermal plasma in the presence of varying concentrations of hydrogen peroxide gel. The results showed that combining plasma treatment with a low concentration hydrogen peroxide (6%) achieved a superior bleaching effect compared with a high concentration of hydrogen peroxide (35%) in the absence of a plasma. Furthermore, the bleaching efficacy did not significantly increase with increasing H2O2 concentration above 6% in the presence of the plasma. Compared with the control group (hydrogen peroxide without plasma), the plasma generated two to three times as many OH radicals, which are believed to be one of the key reactive species that contribute to the bleaching effect.

Original languageEnglish (US)
Article number6407934
Pages (from-to)325-329
Number of pages5
JournalIEEE Transactions on Plasma Science
Volume41
Issue number2
DOIs
StatePublished - 2013

Keywords

  • Hydrogen peroxide
  • hydroxyl radical
  • nonthermal plasma
  • tooth bleaching

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Condensed Matter Physics

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