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Low level laser therapy for dentinal tooth hypersensitivity

J A Gerschman1, J Ruben, J Gebart-Eaglemont

  • 1Oro-Facial Pain Clinic, Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne.

Australian Dental Journal
|December 1, 1994
PubMed
Summary
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Low level laser therapy (GaAlAs laser) effectively treated dentinal tooth hypersensitivity. This treatment significantly reduced both thermal and tactile sensitivity compared to placebo over eight weeks.

Area of Science:

  • Dentistry
  • Biomedical Engineering
  • Laser Therapy

Background:

  • Dentinal tooth hypersensitivity is a common clinical condition.
  • Existing treatments for hypersensitivity have varying efficacy and potential side effects.

Purpose of the Study:

  • To evaluate the efficacy of low level laser therapy (GaAlAs laser) in managing dentinal tooth hypersensitivity.
  • To compare the effectiveness of GaAlAs laser treatment against a placebo in reducing tactile and thermal sensitivity.

Main Methods:

  • A comparative double-blind study was conducted with subjects exhibiting dentinal hypersensitivity.
  • Participants were randomly assigned to receive active GaAlAs laser therapy or a placebo.
  • Laser therapy was applied to the tooth apex and cervical area, with follow-up applications at one, two, and eight weeks.

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Main Results:

  • Significant reductions in both tactile and thermal sensitivity were observed in the active laser group compared to the placebo group from the first week onwards.
  • At eight weeks, thermal sensitivity decreased by 67% (p < 0.001) and tactile sensitivity by 65% (p = .002) in the laser group, versus 17% and 21% in the placebo group, respectively.
  • No adverse reactions or oral irritation were reported with the GaAlAs laser treatment.

Conclusions:

  • Low level GaAlAs laser therapy is an effective and safe treatment for both thermal and tactile dentinal hypersensitivity.
  • The study supports the use of GaAlAs laser as a viable therapeutic option for managing dentinal hypersensitivity.