Symptoms and physiological responses to prolonged, repeated, low-level tooth clenching in humans

Headache
Tamiyo TakeuchiP Svensson

Abstract

The traditional view contends bruxism, such as tooth grinding/clenching, is part of the etiology of temporomandibular disorders (TMD) including some subtypes of headaches. The purpose of this study is to investigate if a low-level but long-lasting tooth-clenching task initiates TMD symptoms/signs. Eighteen healthy participants (mean age ± SD, 24.0 ± 4.3 years) performed and repeated an experimental 2-hour tooth-clenching task at 10% maximal voluntary occlusal bite force at incisors (11.1 ± 4.6 N) for three consecutive days (Days 1-3). Pain and cardiovascular parameters were estimated during the experiment. The task evoked pain in the masseter/temporalis muscles and temporomandibular joint after 40.0 ± 18.0 minutes with a peak intensity of 1.6 ± 0.4 on 0-10 numerical rating scale (NRS) after 105.0 ± 5.0 minutes (Day 1). On Day 2 and Day 3, pain had disappeared but the tasks, again, evoked pain with similar intensities. The onset and peak levels of pain were not different between the experimental days (P = .977). However, the area under the curve of pain NRS in the masseter on Day 2 and Day 3 were smaller than that on Day 1 (P = .006). Cardiovascular parameters changed during the task but not during the days. Prolonged, low-level...Continue Reading

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Citations

Oct 1, 2016·Neurologia i neurochirurgia polska·Marcin BergerApolinary Ginszt
Nov 1, 2016·Acta Odontologica Scandinavica·Antonio Jiménez-SilvaRaúl Frugone-Zambra
Jun 22, 2018·Journal of Oral Rehabilitation·F LobbezooD Manfredini
Jun 24, 2017·Cephalalgia : an International Journal of Headache·Kerstin LuedtkeArne May
Jul 19, 2018·Journal of Oral Rehabilitation·Nina ZaproudinaMatti Närhi
Mar 30, 2019·Cephalalgia : an International Journal of Headache·Fernando Gustavo ExpostoPeter Svensson
May 16, 2019·Journal of Oral Rehabilitation·Lene Baad-HansenPeter Svensson
Jul 3, 2019·Journal of Oral Rehabilitation·Daniele ManfrediniFrank Lobbezoo
Mar 19, 2021·Frontiers in Endocrinology·Sonja BuvinicViviana Toro-Ibacache
Jul 1, 2021·Journal of Oral Rehabilitation·Simple Futarmal KothariPeter Svensson

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