MRI-Based Assessment of Masticatory Muscle Changes in TMD Patients after Whiplash Injury

Lee, Yeon-Hee; Lee, Kyung Mi; Auh, Q‐Schick

doi:10.3390/jcm10071404

Cited by 27 publications

(25 citation statements)

References 71 publications

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“…The study design is depicted in Figure 1. The masseter and temporalis muscle stiffness was measured with the Aixplorer Ultimate device (SuperSonic Imagine, Aix-en-Provence, France) with a high-frequency linear The masseter and temporalis muscle stiffness was measured with the Aixplorer Ultimate device (SuperSonic Imagine, Aix-en-Provence, France) with a high-frequency linear probe SL 18-5 (5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18). During the shear wave elastography examination, the patients were lying in a supine position.…”

Section: Methodsmentioning

confidence: 99%

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Monitoring of Changes in Masticatory Muscle Stiffness after Gum Chewing Using Shear Wave Elastography

Olchowy

Grzech‐Leśniak

Hadzik

et al. 2021

JCM

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This study aimed to investigate if intensive exercise affects the stiffness of the masticatory muscles measured with shear-wave elastography. The study included a cohort of healthy adults (n = 40) aged 40 ± 11 years. In each individual, the stiffness of both the masseter and temporalis muscle was examined three times: at baseline, after 10 min of intensive exercise (chewing gum), and after 10 min of relaxation. Stiffness values (median (IQR)) of both the masseter and temporalis muscle were the lowest at the baseline (11.35 (9.7–12.65) and 10.1 (9.1–10.95)), increased significantly after the exercise (12.5 (11.1–13.25) and 10.3 (10.2–10.52)) and then dropped significantly after 10 min of relaxing (11.75 (9.95–12.6) and 10.2 (9.65–11.9)). The stiffness of the temporalis muscle was significantly lower than that of the masseter muscle. The values of the stiffness of the masseters correlated significantly with the values of the stiffness of the temporalis muscles. Shear wave elastography proved to be a sensitive method for showing changes in the stiffness of the muscles involved in the mastication occurring as a response to the effort, which increased the muscle stiffness. Further research is needed to broaden knowledge on the impact of eating habits and the occurrence of parafunctions on the development of temporomandibular disorders and the condition of masticatory muscles.

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Section: Methodsmentioning

confidence: 99%

“…We assumed that those muscles would not be equally affected because the masseter muscle is most often involved in TMD [ 12 , 13 ]. Furthermore, TMD symptoms, such as muscle pain and hypertrophy, concern the masseter muscle to a greater extent than the temporalis muscle [ 14 ].…”

Section: Introductionmentioning

confidence: 99%

Monitoring of Changes in Masticatory Muscle Stiffness after Gum Chewing Using Shear Wave Elastography

Olchowy

Grzech‐Leśniak

Hadzik

et al. 2021

JCM

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“…Common signs and symptoms are as follows: TMJ sounds, limitation of mouth opening, preauricular pain, restricted mandibular movement, muscle tenderness or pain on mandibular function, headaches, and sleep problems. Both physical and psychological axes that negatively affect the chewing system are considered risk or exacerbating factors for TMD [ 55 ]. Overt macrotrauma-producing injuries to the head and neck and jaw, and microtrauma with parafunctional habits can result in prolonged TMD signs and symptoms [ 56 ].…”

Section: Resultsmentioning

confidence: 99%

Relationship Analogy between Sleep Bruxism and Temporomandibular Disorders in Children: A Narrative Review

Lee

2022

Children

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Sleep bruxism (SB) is a condition characterized by repetitive clenching or grinding teeth and/or by bracing or thrusting of the mandible during sleep. Although SB is not considered a disorder in children, SB can be a potential physical and psychological hazard or consequence, and this study examines whether SB is a risk factor for TMD as it is in adults. A narrative review on the topic of inferring the relationship between sleep bruxism and TMD in children was performed based on a search in the PubMed and Google Scholar databases for articles published between 1999 and 2022. A total of 76 articles were included in this review. SB is very common in children, may be related to psychological distress or sleep breathing disorder, with a prevalence of up to 49%, and mainly occurs in the non-rapid eye movement stage in the sleep structure. SB may be one cause of TMD. The prevalence of TMD in children is 16–33%. Compared to the female-dominant TMD prevalence in adults, the sex-differences in TMD prevalence in children are less pronounced. However, TMD-related pain is more prevalent in girls than in boys. Given the complex etiology of each of SB and TMD in children, it can be inferred that the explanation of the relationship between the two conditions is very challenging. Ultimately, their relationship should be understood in the individual biopsychosocial model in the process of special physical growth and mental development of children. Moreover, appropriate clinical guidelines for a definitive diagnosis of SB and TMD in children and more research with a high scientific evidence level, which is comprehensive, considering physical, psychological, genetic, and social cultural factors, are required.

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“…[ 12 ] The masticatory muscles play the role of moving the mandible, while the lateral pterygoid muscles are the only muscles that depress the mandible, and cannot trigger an attack of pain. [ 4 , 13 ] Therefore, disuse atrophy of the lateral pterygoid muscles was less significant than the other masticatory muscles.…”

Section: Discussionmentioning

confidence: 99%

Magnetic resonance imaging evaluation of masticatory muscle changes in patients with primary trigeminal neuralgia before microvascular decompression

Zhang

Zheng

Xiao³

et al. 2022

Medicine

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Primary trigeminal neuralgia (PTN) is characterized by chronic neuropathic pain. There are few studies exploring masticatory muscle changes in patients with PTN. This study evaluated the changes in the masticatory muscles using magnetic resonance imaging (MRI) and the predictive factors of masticatory muscle changes in patients with PTN. The radiologic outcomes of 52 patients with PTN and 58 healthy adults were evaluated. The temporalis, lateral pterygoid, medial pterygoid, and masseter muscles were assessed using MRI. Atrophy and edema of the masticatory muscles were noted. Multivariate analyses were conducted to identify factors associated with masticatory muscle atrophy. Among the PTN group, the right side (61.5%) and mandibular branch (53.9%) were the most affected. Muscle atrophy of the temporalis ( P < .001), medial pterygoid ( P = .016), lateral pterygoid ( P = .031), and masseter ( P = .001) were significantly higher in the PTN group than in the control group. Lateral pterygoid edema was significantly higher in the PTN group ( P < .001). However, no significant difference was found in the temporalis and masseter edema between the two groups. Logistic regression analysis demonstrated that neurovascular conflict (NVC) significantly predicted mastication muscle atrophy ( P = .037). Patients with PTN had higher rates of masticatory muscle atrophy and edema. The assessment of NVC may be a preoperative imaging biomarker to predict atrophy in PTN.

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MRI-Based Assessment of Masticatory Muscle Changes in TMD Patients after Whiplash Injury

Cited by 27 publications

References 71 publications

Monitoring of Changes in Masticatory Muscle Stiffness after Gum Chewing Using Shear Wave Elastography

Monitoring of Changes in Masticatory Muscle Stiffness after Gum Chewing Using Shear Wave Elastography

Relationship Analogy between Sleep Bruxism and Temporomandibular Disorders in Children: A Narrative Review

Magnetic resonance imaging evaluation of masticatory muscle changes in patients with primary trigeminal neuralgia before microvascular decompression

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