The relationship between lateral displacement of the mandible and scoliosis

Nakashima, Azusa; Nakano, Hirofumi; Yamada, Tomohiro; Inoue, Kohei; Sugiyama, Goro; Kumamaru, Wataru; Nakajima, Yasumichi; Sumida, Tomoki; Yokoyama, Takeshi; Mishiama, Katsuaki; Mori, Yoshihide

doi:10.1007/s10006-016-0607-9

Cited by 14 publications

(11 citation statements)

References 9 publications

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“…Indeed, the difference may be attributable to physiological muscular asymmetry compatible with normal function [2,15,30,31]. Participants showed similar static body postures irrespective of whether their crossbite was on the left or right, similar to the observation that the degree of vertebral deviation correlated with the degree of mandibular deviation only when excluding direction [32]. Although the sample size was sufficient to find body posture differences in subjects with and without UPCB, the small number of participants in the right-side or left-side UPCB group might not have been large enough to find significant comparisons and the findings should be interpreted with caution.…”

Section: Discussionsupporting

confidence: 55%

Relationship between Unilateral Posterior Crossbite and Human Static Body Posture

Zurita-Hernandez

Ayuso‐Montero

Cuartero-Balana

et al. 2020

IJERPH

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Background: We compared photogrammetry-assessed body posture between young adults with and without unilateral posterior crossbite (UPCB). Assessments were controlled by vision, mandibular position and sitting/standing position. In addition, we aimed to determine the relationship between UPCB laterality and the direction of body posture using photogrammetry and a static postural platform. Methods: Adults with natural dentition, with and without UPCB, were enrolled. Static body posture was assessed by photogrammetry based on horizontal acromial alignment and horizontal anterior-superior iliac spine (ASIS) alignment. Frontal photographs were taken with participants asked to open or close their eyes and hold their jaws at rest, at an intercuspal position, and at left or right lateral positions. Distribution of foot pressure was recorded using a static postural platform at different visual input and mandibular positions. General linear models with repeated measures were used to assess the effect of the various within- and between-subject factors. Results: In total, 36 adults (left UPCB = 12; Right UPCB = 6; controls = 18) participated. There were significant differences between the control and UPCB groups in horizontal alignment at the acromion (p = 0.035) and ASIS (p = 0.026) levels when controlled by visual input and mandibular position. No significant differences in horizontal alignment or foot pressure distribution were observed by laterality in the UPCB group. Conclusion: The presence of UPCB affects static body posture, but the side of crossbite is not related to the direction of effect on static body posture.

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Section: Discussionsupporting

confidence: 55%

Relationship between Unilateral Posterior Crossbite and Human Static Body Posture

Zurita-Hernandez

Ayuso‐Montero

Cuartero-Balana

et al. 2020

IJERPH

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“…This research was extended in 2017 by Nakashima. The results showed that 11.4% of respondents had a curvature above 10°Cobb and there was a correlation between the deviation of the mandible and scoliosis [59].…”

Section: Methodsmentioning

confidence: 94%

Disorders of the statics of the body and the temporomandibular joint

Odzimek

Maj-Gnat

2021

J Educ Health Sport

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INTRODUCTION The temporomandibular joint is a synovial, complex (hinge-sliding) joint that connects the temporal bone with the mandible by means of an articular disc. Temporomandibular joint dysfunctions most often concern several disease entities and include various symptoms and ailments. One of the first symptoms of the disease is pain that stems from a muscle or joint. In addition, we can observe: limitations in the mobility and range of movement of the jaw, problems with chewing food, crackles in the joint, pain in pressure and touch of the muscles, earaches and noise or changes in the appearance of the face (the so-called "square face"). Any deviation from the correct body posture is called a posture defect. OBJECTIVE The main aim of the study is to present the significant relationship between disturbed statics of the body and the temporomandibular joint, thanks to which we can explain the importance of proper planning of diagnostics as well as conducting dental and physiotherapeutic therapy. THE WEIGHT OF THE BODCIES The materials used to write the article include scientific works from 1992-2021. The data was collected using the PubMed search engine and manual filtering. 80 publications were qualified for the analysis. SUMMARY According to the analyzed literature, we believe that there is a relationship between disturbances in the body statics and the stomatognathic system. The complexity of the issue shows that it is important to conduct multi-directional and interdisciplinary therapy.

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“…However, these relationships in patients with IS are not clear. In the study by Nakashima et al [17], a positive correlation between the Cobb angle and the degree of mandibular deviation was detected, while Ben-Bassat et al [4] found no association between location, side, or severity of scoliosis and the appear-ance or side of the malocclusion. Regarding the association between craniofacial morphology and trunk asymmetry, Zepa et al [25] found that all facial morphologic variables were almost similar in patients with left-sided and right-sided scoliosis.…”

Section: ______________________________mentioning

confidence: 93%

“…Both fluctuating asymmetry and the presence of increased directional asymmetry were observed in patients affected by IS [9]. Many researchers have also suggested a relationship between a postural deformity of the trunk, such as IS and asymmetric orthodontic conditions [4], [17], [20], [22]. According to a systematic review published in 2011 [21], there is plausible evidence for an increased prevalence of unilateral Angle Class II malocclusions, lateral crossbite, midline deviation as well as reduced range of lateral movements in patients affected by scoliosis.…”

Section: ______________________________mentioning

confidence: 99%

Bilateral dentoalveolar asymmetries in female patients with adolescent idiopathic scoliosis

Lewandowska

Opydo-Szymaczek

Mehr

et al. 2019

Acta Bioeng Biomech

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The aim of this cross-sectional research was to quantify left-right dentoalveolar fluctuating (FA) and directional asymmetries (DA) in patients with adolescent idiopathic scoliosis and to assess the relationship between these asymmetries and the side, location, and severity of scoliosis. Materials and methods: The study group comprised of 60 females aged 12-16 years, with idiopathic scoliosis, and 54 healthy controls. Measurements were made with the use of digital caliper on full-mouth dental casts. The following variables were measured from each subject: a shift of the incisor midline, left and right incisor overjet, deviation of canine and buccal segment relation as well as maxillary and mandibular arch chords. The data were statistically analyzed with significance taken as p < 0.05. Results: Statistically significant differences in the mean shift of the incisor midline, buccal segment relation on the left and canine deviation on the left between the control group and the study group were detected (p = 0.0419, p = 0.0.458 and p = 0.0204, respectively). FA of the midline deviation and canine deviation were statistically significantly higher for subjects with IS, compared to healthy controls (p = 0.0315 and p = 0.0415, respectively). Neither direction of the curve nor apical vertebra's location or apical translation significantly affected the magnitude of dentoalveolar asymmetries. Conclusions: Our results confirmed that bilateral asymmetries are a common feature of the young females' occlusion. Individuals with IS show higher tendency to Angle Class II malocclusion, as well as higher FA of incisor midline discrepancy and canine deviation, compared to the controls.

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The relationship between lateral displacement of the mandible and scoliosis

Abstract: Lateral displacement of the mandible and scoliosis are related.

Cited by 14 publications

References 9 publications

Relationship between Unilateral Posterior Crossbite and Human Static Body Posture

Relationship between Unilateral Posterior Crossbite and Human Static Body Posture

Disorders of the statics of the body and the temporomandibular joint

Bilateral dentoalveolar asymmetries in female patients with adolescent idiopathic scoliosis

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