Lasers in Medical Science

, Volume 26, Issue 5, pp 591–598 | Cite as

Low-level laser therapy of dentin hypersensitivity: a short-term clinical trial

  • Kaan Orhan
  • Umut Aksoy
  • Deniz C. Can-KarabulutEmail author
  • Atakan Kalender
Original Article


The aim of this study was to evaluate low-level laser therapy in cervical dentin hypersensitivity. A randomized controlled clinical trial was conducted with a total of 64 teeth. Dentin desensitizer and diode laser were applied on the cervical dentin surfaces. Distilled water and placebo laser was used as the placebo groups. The irradiance used was 4 J/cm2 per treatment site. The baseline measurement of hypersensitivity was made by using visual analog scale (VAS). Twenty-four hours and 7 days after the application of desensitizer, diode laser and placebo groups, a new VAS analysis was conducted for the patients’ sensitivity level. The mean pain scores of placebo groups were significantly higher than the desensitizer’s and diode laser’s mean scores (ANOVA, p < 0.05). The VAS analysis revealed a significant decrease in dentin hypersensitivity in 7 days with the use of the desensitizer and low-level laser therapy and no statistically significant difference was observed between these two treatments (p > 0.05). Although low-level laser and glutaraldehyde containing desensitizer present distinct modes of action, experimental agents caused a significant reduction of dentin hypersensitivity without showing secondary effects, not irritating the pulp or causing pain, not discoloring or staining the teeth, and not irritating the soft tissues at least for a period of 1 week with no drawbacks regarding handling and/or ease of application. Low-level laser therapy and desensitizer application had displayed similar effectiveness in reducing moderate dentin hypersensitivity.


Dentin hypersensitivity Low-level laser therapy Desensitizer Clinical trial 


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Copyright information

© Springer-Verlag London Ltd 2010

Authors and Affiliations

  • Kaan Orhan
    • 1
  • Umut Aksoy
    • 2
  • Deniz C. Can-Karabulut
    • 3
    Email author
  • Atakan Kalender
    • 3
  1. 1.Department of Oral Diagnosis and Radiology, Faculty of DentistryUniversity of AnkaraAnkaraTurkey
  2. 2.Department of Endodontics, Faculty of DentistryNear East UniversityMersinTurkey
  3. 3.Department of Operative Dentistry, Faculty of DentistryNear East UniversityMersinTurkey

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