Does cavitation occur around powered toothbrushes?

Simon Lea, GJ Price, AD Walmsley

Research output: Contribution to journalArticle

1 Citation (Scopus)


AIMS/OBJECTIVES: The aim of this investigation was to determine if cavitational activity occurred around powered toothbrushes using a chemical dosimeter system based on terephthalic acid (TA). MATERIAL AND METHODS: Five powered toothbrushes were used in this investigation: Braun Plaque Remover D8, Braun Oral-B 3D, Philips Jordan Sensiflex HX2520, Sonicare PS-1 and Sonicare Elite HX 7351/02. Each brush head was inserted into a conical flask containing 50 cm3 of aqueous TA solution. Brushes were operated for 10 and 20 min and a cuvette of the solution was placed in a fluorescence spectrometer (Perkin Elmer 3000). The fluorescence emitted at wavelength 425 nm, which is proportional to *OH radical concentration, was monitored. RESULTS: Any cavitational activity that may have been produced by the powered toothbrushes was below the limit of detection of the system (
Original languageEnglish
Pages (from-to)77-78
Number of pages2
JournalJournal of Clinical Periodontology
Publication statusPublished - 1 Jan 2004


  • terephthalate dosimeter
  • powered toothbrushes
  • cavitation


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