Natural mediotrusive contact: does it affect the masticatory and neck EMG activity during tooth grinding?

Cranio : the Journal of Craniomandibular Practice
Aler Daniel FuentesR Miralles

Abstract

There is scarce knowledge regarding the influence of a natural mediotrusive contact on mandibular and cervical muscular activity. The purpose of this study was to analyze the EMG activity of the anterior temporalis (AT) and sternocleidomastoid (SCM) muscles during awake grinding in healthy subjects with or without a natural mediotrusive occlusal contact. Fifteen subjects with natural mediotrusive occlusal contact (Group 1) and 15 subjects without natural mediotrusive occlusal contact (Group 2) participated. Bilateral surface EMG activity of AT and SCM muscles was recorded during unilateral eccentric or concentric tooth grinding tasks. EMG activity was normalized against the activity recorded during maximal voluntary clenching in intercuspal position (IP) for AT muscles and during maximal intentional isometric head-neck rotation to each side, for SCM muscles. EMG activity of AT and SCM muscles showed no statistical difference between groups. EMG activity of AT muscle was higher in the working side (WS) than in the non-WS (NWS) in Group 1 during concentric grinding (0.492 vs 0.331, p = 0.047), whereas no difference was observed in Group 2. EMG activity of SCM was similar between working and NWSs in both groups and tasks. Asymmetr...Continue Reading

References

Aug 1, 1986·European Journal of Orthodontics·J Ahlgren
Sep 1, 1980·Journal of Oral Rehabilitation·G Hellsing
Mar 1, 1997·Journal of Oral and Maxillofacial Surgery : Official Journal of the American Association of Oral and Maxillofacial Surgeons·R P HarperI Burcea
May 12, 1998·The Journal of Prosthetic Dentistry·P KirveskariP Alanen
Aug 1, 1998·Journal of Oral Rehabilitation·T OgawaT Suetsugu
Dec 10, 1998·Journal of Oral Rehabilitation·P O ErikssonE Nordh
Oct 8, 1999·Medical Engineering & Physics·A Burden, R Bartlett
Dec 10, 1999·The Journal of Prosthetic Dentistry·G T ClarkT Watanabe
Jul 5, 2002·Critical Reviews in Oral Biology and Medicine : an Official Publication of the American Association of Oral Biologists·Kemal S Türker
Sep 1, 1955·The Journal of Pediatrics·V D WEEKS, J TRAVELL
Nov 1, 1950·American Journal of Orthodontics·A G BRODIE
May 12, 2004·Cranio : the Journal of Craniomandibular Practice·Robert B Kerstein
Aug 6, 2004·Australian Dental Journal·D ManfrediniM Bosco
Oct 6, 2005·Journal of Oral Rehabilitation·I C GadottiD Biasotto-Gonzalez
Jan 24, 2006·Acta Odontologica Scandinavica·Mauno KönönenMarjatta Nyström
Feb 17, 2007·Journal of Oral Rehabilitation·S Armijo-Olivo, D J Magee
Aug 25, 2007·Journal of Oral Rehabilitation·N OkanoY Igarashi
Jun 19, 2008·Journal of Oral Rehabilitation·G J LavigneK Raphael
Feb 18, 2010·Cranio : the Journal of Craniomandibular Practice·Mario Felipe GutiérrezMaría Javiera Fresno
Mar 5, 2011·Cranio : the Journal of Craniomandibular Practice·Karen RodríguezSaúl Valenzuela
Dec 2, 2011·Cranio : the Journal of Craniomandibular Practice·Karina AldanaMario Felipe Gutiérrez
Oct 20, 2012·Acta Odontologica Scandinavica·Aler Daniel FuentesSaúl Valenzuela

❮ Previous
Next ❯

Citations

Nov 6, 2020·Journal of Oral Rehabilitation·Priscila ChuhuaicuraRamón Fuentes
Mar 31, 2021·Journal of Prosthodontics : Official Journal of the American College of Prosthodontists·Terry R Walton, Danielle M Layton

❮ Previous
Next ❯

Related Concepts

Related Feeds

Aphasia

Aphasia affects the ability to process language, including formulation and comprehension of language and speech, as well as the ability to read or write. Here is the latest research on aphasia.

Related Papers

Cranio : the Journal of Craniomandibular Practice
Karen RodríguezS Valenzuela
Cranio : the Journal of Craniomandibular Practice
Mario Felipe GutiérrezMaría Javiera Fresno
Cranio : the Journal of Craniomandibular Practice
Karina AldanaMario Felipe Gutiérrez
© 2021 Meta ULC. All rights reserved