Effects of a Semiconductor Laser on Pulp Temperature Sensitivity Threshold Level and Dentin Hypersensitivity

• OTSUKA Michiyo

  Department of Periodontics and Endodontics, Tsurumi University School of Dental Medicine

• YAHAGI Hozumi

  General Dentistry and Clinical Education, Tsurumi University School of Dental Medicine

• YAMAGUCHI Hiroyasu

  General Dentistry and Clinical Education, Tsurumi University School of Dental Medicine

• KOBAYASHI Kazuyuki

  Department of Periodontics and Endodontics, Tsurumi University School of Dental Medicine

• YASHIMA Akihiro

  Department of Periodontics and Endodontics, Tsurumi University School of Dental Medicine

• NAGANO Takatoshi

  Department of Periodontics and Endodontics, Tsurumi University School of Dental Medicine

• SHIRAKAWA Satoshi

  Department of Periodontics and Endodontics, Tsurumi University School of Dental Medicine

• IINO Fumiaki

  Department of Periodontics and Endodontics, Tsurumi University School of Dental Medicine

• SEKINE Akiko

  Department of Periodontics and Endodontics, Tsurumi University School of Dental Medicine

• ADACHI Atsushi

  Department of Periodontics and Endodontics, Tsurumi University School of Dental Medicine

• TOKIWA Tamami

  Operative Dentistry, Tsurumi University School of Dental Medicine

• FUKUI Toshiko

  Department of Periodontics and Endodontics, Tsurumi University School of Dental Medicine

• KAKEGAWA Ayako

  Department of Periodontics and Endodontics, Tsurumi University School of Dental Medicine

• GOMI Kazuhiro

  Department of Periodontics and Endodontics, Tsurumi University School of Dental Medicine

• ARAI Takashi

  Department of Periodontics and Endodontics, Tsurumi University School of Dental Medicine

Bibliographic Information

Other Title

• 半導体レーザー照射の歯髄温度感覚閾値への影響と象牙質知覚過敏症への効果

Abstract

There are various symptoms in dentin hypersensitivity, and various treatments have been carried out. Although newly developed semiconductor laser devices are expected to be used in clinical applications, the possible mechanisms of their anesthetic effect are still unclear. We therefore examined the effects of Nd:YAG laser irradiation in terms of hypersensitivity and dental pulp hemodynamics.<br>Twenty volunteers (10 males and 10 females, mean age 30.0±3.9 and 27.3±1.6 years, respectively), participated in the study. Both sides of healthy mandibular canines were selected as the experimental site: the right cervical surface was the irradiated site, and the left cervical surface was the control site without irradiation. Eleven teeth with dentin hypersensitivity were used in this study. A pulsed semiconductor laser was applied to the area twice for 30 seconds each, at 1 W, RPT 3 ms, duty 10%.<br>On both the control side and the irradiation side, pulp temperature sensitivity threshold level was measured by an electrothermal stimulator, the probe tip of which could be heated from 30°C to 65°C. A statistically significant increase in the pulp threshold level was observed in males after irradiation (p<0.05).<br>The severity of pain was evaluated by McGill Pain Questionnaire (MPQ), and there was a statistically significant decrease in the MPQ score after irradiation.<br>These results suggest that semiconductor laser irradiation is useful for dentin hypersensitivity.

Journal

• Journal of Japanese Society for Laser Dentistry

  Journal of Japanese Society for Laser Dentistry 21 (2), 89-94, 2010

  Japanese Society for Laser Dentistry

Keywords

• Semiconductor laser
• Pulp temperature sensitivity threshold level
• Dentin hypersensitivity

Details

• CRID: 1390282679450671360
• NII Article ID: 130004852493
• DOI: 10.5984/jjpnsoclaserdent.21.89
• ISSN: 21856702
• ISSN: 09177450
• Web Site: https://www.jstage.jst.go.jp/article/jjpnsoclaserdent/21/2/21_89/_pdf
• Web Site: https://search.jamas.or.jp/link/ui/2010335406
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed