TY  - JOUR
A1  - Maurer-Grubinger, Christian
A1  - Avaniadi, Ioanna
A1  - Adjami, Frederic
A1  - Christian, Wolfgang
A1  - Doerry, Charlotte
A1  - Fay, Viola Nathalie
A1  - Fisch, Vanessa
A1  - Gerez, Ali
A1  - Goecke, Julian
A1  - Kaya, Ugur
A1  - Keller, Julia
A1  - Krüger, Kai-Dominik
A1  - Pflaum, Julia
A1  - Porsch, Laurin
A1  - Wischnewski, Christina
A1  - Scharnweber, Benjamin
A1  - Sosnov, Polyna
A1  - Oremek, Gerhard
A1  - Groneberg, Jan David Alexander
A1  - Ohlendorf, Daniela Maren
T1  - Systematic changes of the static upper body posture with a symmetric occlusion condition
T2  - BMC musculoskeletal disorders
N2  - 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.
KW  - Upper body posture
KW  - Healthy adults
KW  - Videorasterstereography
KW  - Blocked occlusion
Y1  - 2020
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/74727
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-747276
SN  - 1471-2474
N1  - There is no funding. Open Access funding enabled and organized by Projekt DEAL.
N1  - The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data.
VL  - 21
IS  - art. 636
SP  - 1
EP  - 15
PB  - BioMed Central
CY  - London
ER  -