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Head and neck posture evaluation in subjects with bruxism

Carolina Marciela Herpich, Thiago Manuel de Oliveira Vasconcelos, Dowglas Fernando Magalhães de Sousa, Éric Edmur Camargo Arruda, Igor Phillip dos Santos Gloria, Cid Andre Fidelis de Paula Gomes, Tabajara de Oliveira Gonzalez, João Carlos Ferrari Correa, Manoela Domingues Martins, Daniela Aparecida Biasotto-Gonzalez

Med Sci Tech 2013; 54:83-86

DOI: 10.12659/MST.889257

Available online: 2013-06-10

Published: 2013-06-10


#889257

Background: The aim of this study was to investigate the relationship between head and neck posture, bruxism, and TMD.
Material and Methods: The subjects were separated into 2 groups: Control Group (n=28), composed of subjects without signs of bruxism and TMD; and Bruxism Group (n=28), composed of volunteers with bruxism and TMD-related signs and symptoms. Markers were placed on 3 anatomical landmarks (spinous process of the seventh cervical vertebra, manubrium of the sternum, and mental protuberance) and photographic measurements were made to evaluate head posture. Angles between markers were determined using the ALCimagem® software for quantitative image analysis.
Results: The average angle value was 43.94±3.94° in the Group Control, and 90.76±7.72° in the Bruxism Group. A significant difference was observed between the angles obtained in the Control Group and Bruxism Group (p≤0.001). When cervical angle data was compared to the TMD severity level, it was possible to observe an increase in cervical angle in TMD subjects corresponding to the level of severity presented.
Conclusions: In general, the cervical angle in the Bruxism Group was different than the angles observed in the Group Control, and the cervical angle tends to increase when TMD severity increases.

Keywords: Posture, Photogrammetry, bruxism, Temporomandibular Joint Dysfunction Syndrome



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