Influence of forward head posture on condylar position

Ohmure, Haruhito; Miyawaki, Shouichi; Nagata, Jun; Ikeda, Kazumi; Yamasaki, Konosuke; Al-Kalaly, Abdullah

doi:10.1111/j.1365-2842.2007.01834.x

Cited by 73 publications

(59 citation statements)

References 30 publications

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“…8 The forward head position moves the mandibular condyle from a normal position to a higher and more posterior region in the mandibular fossa than in normal head posture. 9 Moreover, painful stimuli in the cervical region may lead to pain in the facial region. 10,11 Some clinical studies have found that the use of diagnostic criteria for TMD associated with photographic and magnetic resonance imaging analyses do not confirm the correlation between TMD and head and cervical postures.…”

Section: Changesmentioning

confidence: 99%

Association between temporomandibular disorders and abnormal head postures

et al. 2015

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This study examines the possible correlation between the prevalence of temporomandibular disorders (TMD) and different head postures in the frontal and sagittal planes using photographs of undergraduate students in the School of Dentistry at the Universidade de Brasília -UnB, Brazil. In this nonrandomized, cross-sectional study, the diagnoses of TMD were made with the Research Diagnostic Criteria (RDC)/TMD axis I. The craniovertebral angle was used to evaluate forward head posture in the sagittal plane, and the interpupillary line was used to measure head tilt in the frontal plane. The measurements to evaluate head posture were made using the Software for the Assessment of Posture (SAPO). Students were divided into two study groups, based on the presence or absence of TMD. The study group comprised 46 students and the control group comprised 80 students. Data about head posture and TMD were analyzed with the Statistical Package for the Social Sciences, version 13. Most cases of TMD were classified as degenerative processes (group III), followed by disk displacement (group II) and muscle disorders (group I). There was no sex predominance for the type of disorder. No association was found between prevalence rates for head postures in the frontal plane and the occurrence of TMD. The same result was found for the association of TMD diagnosis with craniovertebral angle among men and women, and the group that contained both men and women. Abnormal head postures were common among individuals both with and without TMD. No association was found between head posture evaluated in the frontal and sagittal planes and TMD diagnosis with the use of RDC/TMD.

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Section: Changesmentioning

confidence: 99%

Association between temporomandibular disorders and abnormal head postures

et al. 2015

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“…The hypothesis of an association between head posture and the limitation of mandibular growth could also be postulated 23 .…”

Section: -6 -Cranio-cervical Posturementioning

confidence: 99%

“…A mandible, and its condyles 23 , held in a retruded position could be an indicator of this possibility because it would mean the kinematics of the TMJ had been altered as well as the mechanism for muscular control for correcting the anticipated hyper-extension of the head.…”

Section: -6 -Cranio-cervical Posturementioning

confidence: 99%

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The role of the clinical examination in management of temporo-mandibular and cervical disorders

Chanlon¹,

Bedoui²,

Fleiter³

2011

J Dentofacial Anom Orthod

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The diagnosis of functional temporo-mandibular and cervical problems depends to a great extent on subjective information provided by patients. As a result, it is difficult to arrive at a substantiated assessment of the prevalence of these disorders. Based on the data reported from large-scale epidemiological studies, it appears that nearly 50 % of the populations of developed countries have symptoms of musculo-skeletal problems. The over-abundance of diagnostic tests suggested for assessing this problem adds confusion to this murky area. The purpose of this article is to precisely evaluate the pertinence of the various tests used to establish a clinical diagnosis. KEY WORDS

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“…Change in head posture affected swallowing 20) , the path of mandibular movement 3,5) , and activity of head-neck muscles 2,19) . Head posture is also associated with temporomandibular disorders 13) . Masticatory movement has been reported to be accompanied by head movement (pitching of the head) 1,[8][9][10]12) .…”

Section: Introductionmentioning

confidence: 99%

Time Course Analysis of Influence of Food Hardness on Head Posture and Pitching of Head during Masticatory Movement

Shinya

Satô

Hisanaga

et al. 2013

Bull. Tokyo Dent. Coll.

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The purpose of the present study was to investigate the relationship between mastication and head posture using foods with different degrees of hardness. A total of 12 healthy, dentulous volunteers participated in the study. Each participant was required to chew two types of gummy candy with two levels of hardness while sitting upright. Measurements were conducted using an optoelectric jaw-tracking system with 6 degrees of freedom (Gnatho-Hexagraph II JM-2000 ® ). The horizontal plane perpendicular to the direction of gravitational force served as the reference plane. Analysis of the gradient of the Frankfurt plane (head posture) and pitching of the head during masticatory movement was conducted. The influence of the type of test food on these parameters was evaluated during mastication. During stable mastication, the gradient of the Frankfurt plane was 4.66 degrees on average, close to the horizontal plane. The time course of the Frankfurt plane gradient revealed a tendency toward dorsal flexion during the first to middle phases of mastication, and a tendency toward ventral flexion during the middle to last phases, regardless of the hardness of the test food. The participants were divided into two groups based on change in head posture during chewing. The results showed while there was no change in head posture in the group with marked pitching of the head, head posture did change in the group with little pitching.

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Influence of forward head posture on condylar position

Cited by 73 publications

References 30 publications

Association between temporomandibular disorders and abnormal head postures

Association between temporomandibular disorders and abnormal head postures

The role of the clinical examination in management of temporo-mandibular and cervical disorders

Time Course Analysis of Influence of Food Hardness on Head Posture and Pitching of Head during Masticatory Movement

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