Systematic changes of the static upper body posture with a symmetric occlusion condition

  • Background: Temporary occlusal changes and their influence on the upper body statics are still controversially discussed. Furthermore, concrete statements on whether age- or gender-specific differences in neurophysiological reactions exist are missing. Therefore, it is the aim of this study to evaluate the immediate effects of a symmetrical occlusion blocking on the upper body posture. These effects shall be investigated for both genders and for a larger age range. Methods: In this study, 800 (407f/393 m) subjects volunteered aged from 21 to 60 years. Both genders were divided into four age groups according to decades. The three-dimensional upper body posture was measured by using the rasterstereography (ABW-Bodymapper). The habitual static posture was measured in two dental occlusion conditions (a) in rest position and (b) symmetrical blocking in the bicuspid region by cotton rolls. Results: A significant reduction of the trunk length (0.72 mm; p <  0.001), an increase of the lumbar (0.30°; p <  0.001) and the thoracic bending angle (0.14°; p = 0.001), a reduction of the spinal forward decline (0.16°; p <  0.001) and a reduction of the scapular distance (0.36 mm; p = 0.001) was found. Gender-specific reactions can only be recorded in scapular distance, in that regard men reduce this distance while over all age groups women did not show a significant change. Discussion: Slight gender- and age-independent reactions due to a symmetric occlusion blockade are shown: A gender independent reaction of the spinal related variables in the sagittal plane (thoracic and lumbar flexion angle, trunk length, spinal forward decline). In addition, a gender specific change of the shoulder blade distance could be observed, where men reduced the distance while female did not show a change. However, since these reactions are of a minimum amount, it can be concluded that neurophysiological compensation mechanisms work equally well regardless of age and sex, and the upper body posture of healthy people changes only very slightly due to a temporarily symmetrical altered bite position.

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Author:Christian Maurer-GrubingerORCiDGND, Ioanna Avaniadi, Frederic AdjamiGND, Wolfgang Christian, Charlotte DoerryGND, Viola Nathalie FayGND, Vanessa FischGND, Ali GerezGND, Julian Goecke, Ugur KayaGND, Julia KellerGND, Kai-Dominik KrügerGND, Julia PflaumGND, Laurin Porsch, Christina WischnewskiGND, Benjamin Scharnweber, Polyna SosnovGND, Gerhard OremekORCiDGND, Jan David Alexander GronebergORCiDGND, Daniela Maren OhlendorfORCiDGND
Parent Title (English):BMC musculoskeletal disorders
Publisher:BioMed Central
Place of publication:London
Document Type:Article
Date of Publication (online):2020/09/26
Date of first Publication:2020/09/26
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2023/09/12
Tag:Blocked occlusion; Healthy adults; Upper body posture; Videorasterstereography
Issue:art. 636
Article Number:636
Page Number:15
First Page:1
Last Page:15
There is no funding. Open Access funding enabled and organized by Projekt DEAL.
The Creative Commons Public Domain Dedication waiver ( applies to the data made available in this article, unless otherwise stated in a credit line to the data.
Dewey Decimal Classification:6 Technik, Medizin, angewandte Wissenschaften / 61 Medizin und Gesundheit / 610 Medizin und Gesundheit
Licence (German):License LogoCreative Commons - CC BY - Namensnennung 4.0 International