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Original Research

Open Access

Pressure Pain Threshold With and Without Iontophoretic Anesthesia of the Masseter Muscle in Asymptomatic Males

  • Masanori Fujisawa1,*,
  • Satoru Shoji2
  • Kanji Ishibashi1
  • Glenn T. Clark3

1Department of Fixed Prosthodontics, School of Dentistry, Iwate Medical University, Morioka, Japan

2Department of Dental Radiology, School of Dentistry, Iwate Medical University, Morioka, Japan

3Department of Oral Medicine and Orolacial Pain , University of California at Los Angeles School of Dentistry, Los Angeles. California

DOI: 10.11607/jofph.1397 Vol.13,Issue 2,June 1999 pp.97-103

Published: 30 June 1999

*Corresponding Author(s): Masanori Fujisawa E-mail: fujisawa@iwate-med.ac.jp

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Abstract

Aims: The pressure pain threshold (PPT) in the superficial masseter muscle was measured with and without cutaneous anesthesia to determine whether there would be a difference in PPT scores.

Methods: In 14 healthy male subjects, cutaneous tissues in the target areas were anesthetized with lidocaine with the help of an iontophoretic device. As a control, physiologic saline solution was applied iontophoretically to the contralateral masseter site. The subject and the PPT examiner did not know which side contained anesthesia, and the selection of which side to anesthetize was done in a random fashion. Multiple PPT measurements were made in the target sites before and immediately after the iontophoretic anesthesia.

Results: The PPT level on the lidocaine side was not statistically different from the PPT level recorded on the control side (339.0 +/- 87.6 kPa and 337.5 +/- 77.7 kPa, respectively).

Conclusion: Pressure pain sensation in the human masseter is not derived predominantly from the cutaneous tissues, but from the muscle itself.

Keywords

lidocaine; physiologic saline; cutaneous tissues; pressure increment rate; fluid volume change

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Masanori Fujisawa,Satoru Shoji,Kanji Ishibashi,Glenn T. Clark. Pressure Pain Threshold With and Without Iontophoretic Anesthesia of the Masseter Muscle in Asymptomatic Males. Journal of Oral & Facial Pain and Headache. 1999. 13(2);97-103.

URL:

https://www.jofph.com/articles/10.11607/jofph.1397

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