Relationship between jaw opening force and hyoid bone dynamics in healthy elderly subjects

Shinozaki, Hiromichi; Tohara, Haruka; Matsubara, M; Inokuchi, Nobuhiro; Yamazaki, Yasuhiro; Nakane, Ayako; Wakasugi, Yoko; Minakuchi, Shunsuke

doi:10.2147/cia.s130946

Cited by 21 publications

(11 citation statements)

References 16 publications

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“…Sharkey et al found significantly greater average values of 136 N for males and 90 N for females. Bolt and Orchardson only analysed female participants and reported average values of 89 N. More recently, a few studies with elderly participants in Japan also confirmed the sex differences reported in previous studies and reported average values of 48.54 N for males and 39.81 N for females, 76.5 N for males and 48.1 N for females and 62 N for males and 51 N for females . Other studies have also reported larger interincisal distance in adult men than in women, corroborating this trend (eg).…”

Section: Discussionsupporting

confidence: 68%

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Estimation of jaw‐opening forces in adults

Brunton

Loch

Waddell

et al. 2017

Orthod Craniofacial Res

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In this study, which included a large sample of participants of broad age range and from a demographically diverse background, jaw-opening force values were greater in males than in females; however, force values were poorly associated with biological and anthropometric parameters. Future studies should explore the potential of this method as a screening tool for TMJ disorders and other conditions.

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Section: Discussionsupporting

confidence: 68%

“…A wide range of variation in opening forces was observed within the sample. In males, maximum values ranged from 10.64 N to 166.61 N, and in females, they varied from 6.83 N to 152.77 N. High variability in jaw‐opening force values was also observed in previous studies, suggesting strong individual differences …”

Section: Discussionsupporting

confidence: 65%

Estimation of jaw‐opening forces in adults

Brunton

Loch

Waddell

et al. 2017

Orthod Craniofacial Res

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“…It is generally said that reduced hyoid elevation is a common cause of aspiration in the elderly 23 . It is also reported that the potential for dysphagia is increased if the position of the hyoid bone, which lowers with age, is not compensated by increased elevation during swallowing 3 .…”

Section: Discussionmentioning

confidence: 99%

Potential of Panoramic Radiography as a Screening Method for Oral Hypofunction in the Evaluation of Hyoid Bone Position

Kuroda

Matsuda

Ito

et al. 2019

Showa Univ J Med Sci

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The hyoid bone is located in the middle of the cervical muscles involved in oral masticatory function. The position of the hyoid bone is commonly determined by lateral cephalometric analysis. Although cephalometric radiography is commonly used in orthodontic treatment, the modality remains rare ; routine dental care would bene t from precise identi cation of hyoid bone location using a more common modality, such as panoramic radiography. The purpose of this study was to investigate the usefulness of panoramic radiography compared to lateral cephalometric radiography for evaluating hyoid bone position as a potential screening method for oral hypofunction. The study included 347 patients referred for both a panoramic radiograph and a lateral cephalometric radiograph. The patients were divided into the following ve groups according to the appearance of the hyoid bone in the panoramic radiograph : Group 1 : hyoid bone could not be observed, or part of the greater horn was observed ; Group 2 : part of the hyoid body was observed, but not the most supero-anterior point of the hyoid bone ; Group 3 : the most supero-anterior point of the hyoid bone was observed ; Group 4 : all of the hyoid body was observed ; Group 5 : the hyoid body overlapped the mandible. The gold standard for measurement of hyoid bone position is the lateral cephalometric radiograph. Hyoid bone position as revealed by lateral cephalometric radiograph was compared among the groups. Hyoid bones that were observed in higher positions on lateral cephalometric radiograph were also observed in higher positions on panoramic radiograph. Hyoid bone position can be assessed by panoramic radiography, and this modality might be useful as a screening method for oral hypofunction.

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“…The lower end of the fourth cervical vertebra was established as the point of origin, and the upper end of the body of the thyroid cartilage was established as the position of the thyroid cartilage. The distance from the point of origin to the X‐Y coordinates (mm) was then measured . The length was corrected using the metal marker of 20.0 mm in diameter as a reference for the measurement of images (Figure ).…”

Section: Methodsmentioning

confidence: 99%

The effects of sarcopenic dysphagia on the dynamics of swallowing organs observed on videofluoroscopic swallowing studies

Miyashita

Kikutani

Nagashima

et al. 2020

J of Oral Rehabilitation

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Objectives:The aim of the present study was (a) to determine the relationship of videofluoroscopic swallowing study (VFSS) findings of the swallowing musculature with the diagnostic criteria for sarcopenic dysphagia and (b) to examine the usefulness of VFSS for diagnosing sarcopenic dysphagia. Methods:The participants were 132 patients (mean age, 80.4 ± 8.8 years). Their skeletal muscle mass, nutritional status and swallowing functions as assessed by VFSS findings were measured. Also, the relationship between the VFSS findings and sarcopenia was examined.Results: Of all the participants, 20 men (mean age, 83.2 ± 6.9 years) and 27 women (mean age, 85.3 ± 6.9 years) were diagnosed with sarcopenia. In men, the amount of laryngeal upward movement (ALUM) was significantly lower and the pharyngeal area was significantly wider in the sarcopenia group than in the non-sarcopenia group.In women, the pharyngeal area was significantly wider in the sarcopenia group than in the non-sarcopenia group. In a logistic regression model, ALUM (odds ratio [OR] 1.135, 95% confidence interval [CI] 1.037-1.241, P = .006) and pharyngeal area (OR 0.028, 95% CI 0.001-0.670, P = .027) was a significant independent factor for the presence or absence of sarcopenia. Conclusions: The decline in swallowing function of sarcopenia patients was characterised by lower laryngeal movement and enlargement of the pharyngeal cavity due to decreased skeletal muscle mass and decreased muscle strength. The present study suggested the usefulness of measuring ALUM during swallowing and measuring the pharyngeal area with VFSS as indicators of decreased swallowing muscle function in sarcopenia. K E Y W O R D S larynx, pharyngeal muscles, sarcopenia, swallowing | 585 MIYASHITA eT Al.

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Relationship between jaw opening force and hyoid bone dynamics in healthy elderly subjects

Cited by 21 publications

References 16 publications

Estimation of jaw‐opening forces in adults

Estimation of jaw‐opening forces in adults

Potential of Panoramic Radiography as a Screening Method for Oral Hypofunction in the Evaluation of Hyoid Bone Position

The effects of sarcopenic dysphagia on the dynamics of swallowing organs observed on videofluoroscopic swallowing studies

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