Changes in the temporomandibular joint disc and temporal and masseter muscles secondary to bruxism in Turkish patients

Garip, Hasan; Tufekcioglu, Sukran; Kaya, Emre

doi:10.15537/smj.2018.1.20873

Cited by 15 publications

(11 citation statements)

References 22 publications

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“…Thus, masseter and temporalis muscles play a more crucial role in mastication, which can lead to fatigue build-up and become vulnerable to tenderness [54]. In addition, the average thickness values of the masseter muscle (13.65 ± 2.19 mm), temporalis muscle (6.66 ± 1.14 mm), MPM (14.73 ± 1.32 mm), and LPM (15.59 ± 1.40 mm) were different [55][56][57]. Specialization in ber type composition and ber cross-sectional area can be re ected in these intramuscular differences.…”

Section: Discussionmentioning

confidence: 99%

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

Lee

Auh

2021

Preprint

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Objective To investigate the change in volume and signal in the masticatory muscles and temporomandibular joint (TMJ) of patients with temporomandibular disorder (TMD) after whiplash injury based on magnetic resonance imaging (MRI) and to correlate them with other clinical parameters. Methods Ninety patients (64 women, 26 men; mean age: 39.36 ± 15.40 years), including 45 patients with symptoms of TMD after whiplash injury (wTMD), and 45 age- and sex-matched controls with TMD due to idiopathic causes (iTMD) were included. TMD was diagnosed using the study diagnostic criteria for TMD Axis I, and MRI findings of the TMJ and masticatory muscles were investigated. To evaluate the severity of TMD pain and muscle tenderness, we used a visual analog scale (VAS), palpation index (PI), and neck PI. Results TMD indexes, including VAS, PI, and neck PI were significantly higher in the wTMD group. In the wTMD group, muscle tenderness was highest in the masseter muscle (71.1%), and muscle tenderness in the temporalis (60.0%), lateral pterygoid muscle (LPM) (22.2%), and medial pterygoid muscle (15.6%) was significantly more frequent than that in the iTMD group (all p < 0.05). The most noticeable structural changes in the masticatory muscles occurred in the LPM with whiplash injury. Volume (57.8% vs. 17.8%) and signal changes (42.2% vs. 15.6%) of LPM were significantly more frequent in the wTMD group than in the iTMD group. The presence of signal changes in the LPM was positively correlated with the increased VAS scores only in the wTMD group (r = 0.346, p = 0.020). The prevalence of anterior disc displacement without reduction (ADDWoR) (53.3% vs. 28.9%) and disc deformity (57.8% vs. 40.0%) were significantly higher in the wTMD group (p < 0.05). The presence of headache, sleep problems, and psychological distress was significantly higher in the wTMD group than in the iTMD group. Conclusion Abnormal MRI findings and their correlations with clinical characteristics of the wTMD group were different from those of the iTMD group. The underlying neuropathophysiology may differ depending on the cause of TMD, raising the need for a treatment strategy accordingly.

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Section: Discussionmentioning

confidence: 99%

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

Lee

Auh

2021

Preprint

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“…Once the imbalance of the stomatognathic system is established due to oral parafunction, the main symptoms are limitation of physiological activity, noises and pain in TMJ, muscular pain, and limitation and deviation of mandibular movements [65]. However, the mandibular elevating masticatory muscles, especially the masseter and temporal, are the most affected structures in TMDs due to bruxism (Figure 5) [65,66].…”

Section: Most Frequent Symptoms Of Tmdsmentioning

confidence: 99%

“…TMDs may also be associated with anatomical, physiological and psychological factors, as well as headaches and neck and ear pains [65][66][67].…”

Section: Most Frequent Symptoms Of Tmdsmentioning

confidence: 99%

Oral Parafunction - Aetiology, Implications and Relation to Orthodontic Treatment

Corradi¹,

Avelar²

2020

Maxillofacial Surgery and Craniofacial Deformity - Practices and Updates

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Oral parafunction can be defined as an extra-functional action of certain components of the stomatognathic system. The automation of this kind of occurrence that persists in the form of a reflex arc is a denominated habit. The oral parafunctional habits are described as the action of clenching or grinding teeth (bruxism), among others. This work approached bruxism due to its clinical importance. To evaluate the predisposing factors to the development of oral parafunction, the orthodontist should have updated knowledge of the whole process of the phenomenon of bruxism. The purposes of this chapter were about the comprehension of the neurophysiology of bruxism and also about the capacity of structural adaptation of the components of the stomatognathic system, the analysis of its aetiological factors, as well as its implications on the structures of the masticatory system, and the verification of the relation between bruxism and the orthodontic treatment. In conclusion, the nature of that oral habit is multifactorial, which implies extrafunctional demand of neurophysiological mechanisms, whose effects are installed from the rupture of the structural limit of the adaptive capacity of the stomatognathic system, peculiar to each individual. The performance of orthodontic treatment is not related to the development of bruxism.

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“…Bruxism leads to many negative outcomes affecting the muscles, such as inflammation, chronic local muscular contracture and localized muscular hypertrophy, which may in turn cause myofascial pain [3]. One of the most affected muscles due to bruxism is the masseter, the muscle that elevates the mandible [4]. Hypertrophy of the masseter muscle is an objective sign of bruxism.…”

Section: Introductionmentioning

confidence: 99%

Comparison of Kinesio Taping and Manual Therapy in Treatment of Patients With Bruxism Using Shearwave Ultrasonography-a Randomized Clinical Trial

Volkan-Yazici

Kolsuz

Kafa

et al. 2021

Preprint

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Background: Bruxism is significantly associated with craniofacial pain, feeling of stiffness or fatigue of the jaw and neck pain. Various physiotherapeutic strategies are used in the treatment of bruxism, however, it is not clear which method leads to greater decrease in pain. Objective: The aim of this study is to compare the effects of two physiotherapy methods (manual therapy (MT) and Kinesio taping with manual therapy (KTMT)) in patients with bruxism. Methods: Patients were randomized into MT or KTMT groups. Evaluations were performed at baseline and following four weeks of physiotherapy. Muscle thickness and stiffness were assessed via shearwave ultrasonography; pain thresholds were evaluated using algometer. Sleep quality was assessed using Pittsburgh Sleep Quality Index and Quality of life was assessed with Likert scales regarding the associated symptoms. Results: Significant improvements were found in muscle stiffness, pain threshold, sleep quality, quality of life (p<0.05) in both MT and KTMT group. Pain in bilateral temporalis and right occipital region of the trapezius muscle decreased more in the KTMT group compared to the MT group (p<0.05). No significant differences in muscle thickness (p>0.05) were found in either of the groups. Conclusion: Both MT and KTMT methods were effective in the treatment of bruxism. KT used in conjunction with MT has additionally decreased jaw pain and temporal region pain when compared to MT intervention only. Therefore, if jaw pain is the primary complaint of a patient, our results recommend including KT application in the physiotherapeutic treatment program.

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Changes in the temporomandibular joint disc and temporal and masseter muscles secondary to bruxism in Turkish patients

Cited by 15 publications

References 22 publications

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

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

Oral Parafunction - Aetiology, Implications and Relation to Orthodontic Treatment

Comparison of Kinesio Taping and Manual Therapy in Treatment of Patients With Bruxism Using Shearwave Ultrasonography-a Randomized Clinical Trial

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