Konstantin Muzalev1, Corine M Visscher2, Michail Koutris2, Frank Lobbezoo2. 1. Department of Oral Kinesiology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Gustav Mahlerlaan 3004, 1081, LA, Amsterdam, The Netherlands. k.muzalev@acta.nl. 2. Department of Oral Kinesiology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Gustav Mahlerlaan 3004, 1081, LA, Amsterdam, The Netherlands.
Abstract
OBJECTIVES: Sleep bruxism (SB) is considered to play an important role in the provocation of temporomandibular disorder (TMD) pain. However, clinical studies investigating this relation yielded contradictory results. These contradictory results can, at least in part, be explained by a possible influence of TMD pain on SB activity. The aim of this experimental study was to assess the effect of TMD pain on SB. MATERIALS AND METHODS: Nine male participants with clinical signs of SB underwent two subsequent baseline ambulatory polysomnographic (PSG) recordings before undergoing an experimental pain provocation protocol. Thirty-two hours after the pain provocation part a third ambulatory PSG recording was obtained to study the effect of pain on SB. RESULTS: Decrease for all bruxism parameters was found between the recording after the provocation part and the second baseline recording. CONCLUSIONS: Experimentally induced TMD pain causes a reduction in SB activity in healthy individuals. CLINICAL RELEVANCE: A reduction in sleep bruxism activity was recorded in all participants who experienced jaw-muscle pain. This is in line with the pain adaptation model. It supports the negative association between sleep bruxism and jaw muscle pain reported by numerous polysomnographic studies.
OBJECTIVES:Sleep bruxism (SB) is considered to play an important role in the provocation of temporomandibular disorder (TMD) pain. However, clinical studies investigating this relation yielded contradictory results. These contradictory results can, at least in part, be explained by a possible influence of TMD pain on SB activity. The aim of this experimental study was to assess the effect of TMD pain on SB. MATERIALS AND METHODS: Nine male participants with clinical signs of SB underwent two subsequent baseline ambulatory polysomnographic (PSG) recordings before undergoing an experimental pain provocation protocol. Thirty-two hours after the pain provocation part a third ambulatory PSG recording was obtained to study the effect of pain on SB. RESULTS: Decrease for all bruxism parameters was found between the recording after the provocation part and the second baseline recording. CONCLUSIONS: Experimentally induced TMD pain causes a reduction in SB activity in healthy individuals. CLINICAL RELEVANCE: A reduction in sleep bruxism activity was recorded in all participants who experienced jaw-muscle pain. This is in line with the pain adaptation model. It supports the negative association between sleep bruxism and jaw muscle pain reported by numerous polysomnographic studies.
Authors: Leylha Maria Nunes Rossetti; Paulo Henrique Orlato Rossetti; Paulo César Rodrigues Conti; Carlos dos Reis Pereira de Araujo Journal: Cranio Date: 2008-01 Impact factor: 2.020
Authors: F Lobbezoo; J Ahlberg; A G Glaros; T Kato; K Koyano; G J Lavigne; R de Leeuw; D Manfredini; P Svensson; E Winocur Journal: J Oral Rehabil Date: 2012-11-04 Impact factor: 3.837