Symptoms Of Temporomandibular Disorders Research Articles

Does temporomandibular disorder correlate with menopausal symptoms?

To assess the correlation between menopausal symptoms and pain caused by temporomandibular disorder (TMD) and the impact of sociodemographic factors on the association. In this cross-sectional study, a total of 74 women with TMD symptoms were enrolled and divided into three groups according to the Stages of Reproductive Aging Workshop + 10 (STRAW + 10) criteria: G1 (n = 25, late menopausal transition), G2 (n = 30, early postmenopause), and G3 (n = 19, late postmenopause). Sociodemographic data were collected, along with data on menopausal symptoms (Blatt-Kupperman menopausal index) and TMD-induced pain (craniomandibular index). Statistical analysis was performed using a chi-squared test and linear correlation tests (Spearman and Pearson). Analysis of the three groups showed that TMD-induced pain was more intense in G1 than in G3 (P = 0.0426, r = 0.2364, r2 = 0.05589), and menopausal symptoms correlated with the intensity of TMD-induced pain (P = 0.0004, r = 0.4020). This correlation was more significant during the late menopausal transition (G1: P = 0.0267, r = 0.4427, r2 = 0.1960). In G2, women with fewer than 4 years of schooling had a higher total Blatt- Kupperman menopausal index score (17.0 ± 85.0) and craniomandibular index (0.29 ± 0.23) than women with more than 4 years of schooling (P = 0.02 for both indices). Our results suggest that TMD-induced pain and menopausal symptoms are correlated, and more strongly so in the late menopausal transition. Additionally, sociodemographic factors, such as schooling, have a major influence on symptoms in early postmenopause. Performing the TMD evaluation during the climacteric period may be important.

DIFFERENCES IN SYMPTOMS OF MEN AND WOMEN TEMPOROMANDIBULAR JOINT DISORDERS IN STUDENTS OF MEDICAL FACULTY UNIVERSITAS JENDERAL ACHMAD YANI BATCH 2020

Temporomandibular joint disorders (TMD) become one of the most common muscles and jaw problems in the population aged 20-40. TMD has a higher prevalence in women than men with a ratio between 3-4: 1 because gender is the most related risk factor in TMD. This study aims to determine the symptoms of TMD based on gender in students of the Faculty of Medicine of Universitas Jenderal Achmad Yani, batch 2020. The research used an analytical study using the cross-sectional method. The data were analyzed using a chi-square test with 152 research subjects. The results found that 50.7% of students experienced symptoms of TMD, whereas male students experienced TMD more often (53.2%) than females (49.5%), with a value of p = 0.727. In this study, there was no relationship between the symptoms of temporomandibular joint disorder and gender.

Relationship between attention deficit hyperactivity disorder and temporomandibular disorders in adults: a questionnaire-based report.

The symptoms of the attention deficit hyperactivity disorder (ADHD) persist in the adult years of life in most cases. They appear in adults with accompanying psychosocial problems. Temporomandibular disorder (TMD) refers to signs and symptoms associated with pain of non-dental origin in the oro-facial region, functional and structural disruptions of the masticatory system, especially the temporomandibular joints (TMJs) and masticatory muscles. The aim of the study was to show the relationship between the presence of ADHD symptoms in adulthood, in relation to the intensity of pain experienced in the face and problems connected to the TMD symptomatology, as well as sleep disorders. The study group consisted of 252 individuals aged 18-55 years of both sexes, generally healthy. Each participant was asked to fill in several questionnaires, namely: ASRS (the World Health Organization ADHD Adult Self-Report Scale), DIVA (18 questions, 9 for concentration and attention disorders with an option in adulthood and childhood, 9 for hyperactivity and impulsivity with an option in adulthood and childhood), Athens Insomnia Scale, Stanford Sleepiness Scale (SSS), DC/TMD classification (Diagnostic Criteria for Temporomandibular Disorders - biaxial diagnostic criteria based on the biopsychosocial model). Results show that when ADHD symptoms observed in childhood persist, personality disorders, social relations disorders and affective disorders are found more often in adults than motor hyperactivity. There is a positive association between ADHD and the occurrence of symptoms of TMD in adults. This study confirmed this picture, extending it to include pain and sleep disorders.

Awake bruxism, temporomandibular disorders, and quality of life in dental students during COVID-19 lockdown: association with mental health

The aim of this study was to assess the prevalence of awake bruxism (AB), temporomandibular disorders (TMD), quality of life (QoL), and their association with anxiety, depression, and stress levels, during COVID-19 lockdown. To this aim, 268 final-year dental students were asked about AB and TMD-related pain. QoL, anxiety and depression, and stress sensitivity were evaluated with the WHOQOL-bref instrument, the Hospital Anxiety and Depression Scale, and the Perceived Stress scale, respectively. Associations were tested by independent t-test, chi-square test, and simple regression analysis (α = 0.05). AB and TMD symptoms were reported by 54.8% and 64.2% of the volunteers, respectively, which presented worse quality of life (P < 0.05). Regression models showed that anxiety, depression, and stress predicted AB (P < 0.001) and QoL (P = 0.0001). Final-year dental students demonstrated high prevalence of self-reported AB and TMD, both of which correlated with lower QoL and were predicted by psychological factors.

Self-Medication Profile of Adult Patients with Temporomandibular Disorders in Southeast Brazil.

Patients with temporomandibular disorder (TMD) often have orofacial pain and may use medication without professional prescription. Self-medication and inappropriate drug intake may cause serious health problems. This cross-sectional study evaluated the self-medication profile of TMD patients, the most used medications and their effect, and the relation between self-medication and socioeconomic factors. A non-representative sample (n=358) consisted of consecutive adult patients seeking TMD treatment in specialized referral centers for orofacial pain of two universities in São Paulo city, Brazil. A standardized questionnaire was used to collect the study variables before the TMD treatment: self-medication history, TMD pain intensity, sex, age, ethnicity, marital status, schooling and socioeconomic levels. Data were analyzed by descriptive statistics, chi-square test, and logistic regression models at the 0.05 significance level. Almost 60% of 358 TMD patients reported self-medication. Patients with severe TMD were 4.7 times more likely to self-medicate when compared to patients with low TMD intensity (O=5.7; 95% CI=2.4; 13.3; P=0.043), as well as female patients were 30% more likely to self-medicate compared to male patients (OR=2.3; 95% CI=1.1; 5.1; P<0.001). The other independent variables were not associated with self-medication. The frequencies of moderate and severe TMD in women were larger than in those in men (P<0.001). Analgesics and anti-inflammatory drugs were the most used medications. Regarding medication efficacy, 82% of patients reported some improvement after use, but 9% reported side-effect sickness. Self-medication is common among TMD patients attending specialized clinics, and this inappropriate practice is more likely to occur in women and in patients with severe signs and symptoms of TMD.

Evaluation of the efficacy of platelet rich fibrin (I-PRF) intra-articular injections in the management of internal derangements of temporomandibular joints – a controlled preliminary prospective clinical study

BackgroundThe temporomandibular joint (TMJ) is one of the most complex joints in the body. Temporomandibular disorders (TMD) are among the most troublesome disorders for patients, as they can cause pain, affect oral functions and disturb dentists on the level of diagnosis and treatment. The most common symptoms of temporomandibular joint disorders are articulated sounds (such as clicking or TMJ crepitation), joint pain in comfort and function situations (jaw movements), pain or strain in masseter and jaw muscles and or restricted mandibular movements. One of the most modern biocompatible substances used to treat joint disorders, including the TMJ, is platelet-rich plasma (PRP) and injectable platelet-rich fibrin (I-PRF). This study aims to evaluate the efficacy of platelet-rich fibrin (I-PRF) intra-articular injections in managing internal derangements of temporomandibular.MethodsTwenty patients suffering from a unilateral click due to temporomandibular disorders were individually injected with 1 mL of (I-PRF) twice 1 week apart into the superior joint space of the TMJ with the internal disorder. Data were recorded and evaluated by the Helkimo index. This evaluation was conducted three times; 1 week after the first injection, 1 week after the second injection, and 6 months after the first injection.ResultsThe clicking disappeared entirely in 14 out of 20 patients after 1 week of getting the first injection, and in all patients after 1 week of getting the second injection, and returned to two of them after a six-month since the first injection.ConclusionPreliminary results showed the efficacy of the Injectable Platelet-Rich Fibrin (I-PRF) in managing articular clicking in patients with internal disorders of the temporomandibular joint. Injectable Platelet Rich Fibrin has significant clinical efficacy in treating the articular clicking resulting from internal temporomandibular joint disorders.

High Pain Intensity is a Risk Factor of Non-Resolving TMD: A Three-Year Follow-Up of a Patient Group in a Norwegian Interdisciplinary Evaluation Program

PurposeTo investigate the outcome of patients with long-term refractory temporomandibular disorders (TMD) three years after a Norwegian interdisciplinary evaluation program with attention to patient satisfaction, function, pain, and psychosocial variables.Patients and MethodsThe study population consisted of 60 long-term refractory TMD patients who were investigated by a Norwegian interdisciplinary team. A questionnaire that covered medical history, function, pain, lifestyle factors, TMD-status and follow-up from their general medical practitioner (GMP) was sent to the patients three years after the evaluation. Questionnaires that assessed function (Mandibular Functional Index Questionnaire [MFIQ] and Roland Morrison Scale [RMS]), pain intensity (General Pain Intensity questionnaire [GPI]) and psychosocial factors (Hospital Anxiety and Depression scale [HADS]); a 2-item version of the Coping Strategies Questionnaire [CSQ]) were included in the package.ResultsThirty-nine out of 60 TMD patients completed the questionnaires. Improvements in TMD symptoms were reported in 10 patients (26%), were unchanged in 16 patients (41%) and worsened in 13 patients (33%). Only 8 patients (21%) were satisfied with the follow-up of the suggested treatments from their GMP. Significant improvements of symptoms were noted in MFIQ (jaw function), GPI (including pain intensity at maximum and suffering from pain), and CSQ (pain related catastrophizing), in all 39 TMD patients as one group. However, a subgroup analysis showed that the significant improvements were mostly within patients who reported improvement of TMD symptoms. A high pain intensity at baseline was a significant risk factor (OR = 5.79, 95% CI: 1.34, 24.96) for patients who reported worsening of TMD symptoms at follow-up.ConclusionHigh pain intensity at baseline was a significant risk factor for poorer recovery three years after an interdisciplinary evaluation. Our data support the notion that improved coping with TMD pain includes both decreased pain intensity, CSQ and MFIQ scores.

Top 100 Cited Publications in the Field of Temporomandibular Disorders: A Bibliometric Analysis.

BackgroundThe aim of this bibliometric research was to identify and analyze the top 100 cited publications in the field of temporomandibular disorders (TMD) in order to guide any professional level with interest in this topic by mapping the current trends in the field of TMD.Materials and MethodsThe Clarivate Analytics' Web of Science database was used to find the top 100 most cited papers in the field of TMD, published from the year 2000 to November 18, 2021, with MeSH terms in the search strategy. Data extracted were ranking, title, main author, institution, publication year, a total of citations, citation average per year, the journal the study was published, journal impact factor, and the number of studies that each journal published. Further, also the percentage of the different study designs, the number of studies regarding a specific area within the field of TMD, and the number of studies per country were also calculated. A ranking of authors was also performed.ResultsThe top cited paper was a study on diagnostic criteria for TMD, with 1,287 citations published in 2014 in the Journal of Oral and Facial Pain and Headache which also had most of the top 100 cited publications. Eighty-one percent of the most cited studies were from the USA and Europe and 33% of the included studies were review articles.ConclusionTaken together, since all papers were considered classic, one can draw the conclusion that researchers in 2000 onward in the field of TMD are interested in (a) diagnostic criteria, (b) TMD symptoms and mainly pain-related symptoms, (c) etiology and risk factors of TMD and mainly bruxism, and (d) treatment of TMD. However, topics such as imaging, occlusion, tissue engineering, and disk displacements are presently not as popular.

Temporomandibular Disorders, Bruxism, Perceived Stress, and Coping Strategies among Medical University Students in Times of Social Isolation during Outbreak of COVID-19 Pandemic.

The COVID-19 pandemic caught universities along with their students off-guard, enforcing online education. Fear of the unknown, disinformation, and isolation resulted in an increased stress level in the entire population. Medical university students are particularly endangered with high stress levels and developing TMD. Temporomandibular disorders (TMD) are of multifactorial etiology, and manifest with jaw dysfunction, masticatory muscle tension or pain, as well as headache. Though bruxism can act as an exacerbating factor for TMD, stress can also play crucial role in the onset. The study aimed to measure occurrence of TMD and bruxism symptoms in the medical student population, asses the stress level, and evaluate adopted stress-coping strategies during the COVID-19 pandemic outbreak. A survey study was performed among 1018 students at Medical University of Lodz during April 2020. A self-designed questionnaire for screening TMD and bruxism symptoms, Perceived Stress Scale (PSS-10), and Brief-COPE questionnaires were applied. TMD and bruxism symptoms were observed in the majority of subjects during social isolation. The perceived stress levels were significantly higher in those experiencing TMD and bruxism symptoms. Mostly maladaptive, emotion-focused coping strategies were chosen by study subjects experiencing high levels of stress. Choosing Self-Blaming as a coping strategy is the strongest predictor of perceived stress.

Activation of the Mesencephalic Trigeminal Nucleus Contributes to Masseter Hyperactivity Induced by Chronic Restraint Stress.

Psychological stress is commonly accepted to be closely associated with masticatory muscle disorder, which is the main symptom of temporomandibular disorder (TMD). Previous studies have confirmed that exposure to stress may cause masticatory muscle hyperactivity. However, the central mechanism underlying this process remains unclear. The mesencephalic trigeminal nucleus (Vme), which resides in the brainstem, is the primary afferent center for masticatory proprioception and plays a key role in oral–motor movements by projecting to the trigeminal motor nucleus (Vmo). Therefore, the present study was designed to examine the role of Vme neurons in masseter overactivity induced by chronic stress. We found that subjecting mice to restraint stress (6 h/day) for 14 days caused significant anxiety-like behavior, obvious masseter overactivity, and markedly enhanced electrophysiological excitability of Vme neurons. By using anterograde tract tracing combined with immunofluorescence staining methods, we observed vesicular glutamate transporter 1 (VGLUT1)-positive glutamatergic projections from the Vme to the Vmo. Moreover, chronic restraint stress (CRS) elevated the expression of VGLUT1 and choline acetyltransferase (ChAT) in Vmo. Furthermore, administration of VGLUT1-targeted short hairpin RNA (shRNA) into the bilateral Vme significantly suppressed the enhanced overexcitability of Vme neurons, downregulated the overexpression of VGLUT1 and ChAT in the Vmo, and attenuated the elevated overactivity of the masseter caused by CRS. Taken together, we showed that CRS can excite neurons in the Vme, enhancing glutamatergic excitatory projections from the Vme to the Vmo and resulting in masseter muscle overactivity. These findings provide us with a novel central mechanism underlying the correlation between psychological factors and TMD.

Temporomandibular Disorders. Part 1: Anatomy, Aetiology, Diagnosis and Classification

Temporomandibular disorders (TMD) are the most common causes of chronic pain in the orofacial region. The aetiology of TMD is complex owing to its multifactorial biopsychosocial nature. TMD shares many commonalities, and can be associated with, other chronic pain conditions. The physical and psychological impact of chronic pain on the individual can be far-reaching and should not be underestimated. This article, the first of a six-part series, aims to provide the reader with a background to TMDs as well as an overview of the clinical examination and diagnostic process for patients presenting with TMD-related pain. CPD/Clinical Relevance: Clinicians should be aware of the signs and symptoms of TMD with which their patients might present and understand the complex nature of chronic pain conditions.

Chronotype Profile, Stress, Depression Level, and Temporomandibular Symptoms in Students with Type D Personality.

Background: Despite a growing interest in the types of human circadian activity, different chronotypes and personality-related issues have been rarely studied. It has already been emphasized that ‘stress personality’ is considered a risk factor for certain psychosomatic diseases and may be a temporomandibular disorders (TMDs) predictor. Therefore, an attempt has been made to analyze the chronotypes, stress levels, stress factors, and the occurrence of depression and TMDs in students with type D personalities. People with this personality trait tend to experience negative emotions more—depression, anxiety, anger, or hostility—yet may have a negative image of themselves and report somatic complaints. Aim: The aim of this study was to analyze the importance of the chronotype profile for the level of stress perceived, as well as for the occurrence of depression and TMDs in people with type D personalities. Material and Methods: The study has been conducted on a group of 220 physical therapy students. The study group G1 consisted of 110 participants with type D personalities, the control group G2 consisted of the same number of participants without the stress personality. All participants have been analyzed for the chronotype (MEQ), stress perception (PSS10), the occurrence of depression (Beck scale-BDI), the occurrence of TMDs symptoms and have completed the stress factor assessment questionnaire during the study, followed by DS14 questionnaire—a tool for assessing the prevalence of type D personality. Results: In students with type D personalities (G1), the definitely evening and evening chronotypes have been significantly more predominant than in the control group (G2). A significantly higher number of stressors and TMDs symptoms have been observed in the respondents from the G1 group than in the control group (<0.001). Univariate logistic regression analysis showed that type D personality was strongly associated with a more frequent occurrence of all TMD symptoms. Additionally, a significant influence of the evening chronotype on the occurrence of type D personality was observed. Among the potential confounding variables, female gender and a mild and moderate degree of depression have an impact on the occurrence of type D personality (p < 0.05). In the multivariate model, adjusted with the above-mentioned factors, an increased risk of the type D personality trait was found. Conclusion: The evening chronotype and type D personality may imply greater feelings of stress, greater depression, and more frequent symptoms of TMDs in young adults.

Diagnostic Value of High-Resolution Ultrasound for the Evaluation of Capsular Width in Temporomandibular Joint Effusion.

Aim: The aim of this study was to evaluate if the increased temporomandibular joint (TMJ) capsular thickness, measured by ultrasound (US), is associated with the presence of effusion, diagnosed using MRI imaging. Materials and Methods: 102 patients with signs and symptoms of temporomandibular disorders were included in the study. Each patient underwent US and MRI examinations, 1 to 5 days following clinical examination. The US was performed with an 8–40 MHz linear transducer operating at 20 MHz. The MRI was performed using a 1.5 T MRI device. The ROC curve was analyzed to identify the optimal cut-off value for capsular distention, which can be interpreted as an indirect sign of TMJ effusion. Results: The capsular width values were found to be between 0.7 and 3.6 mm. The best cut-off value was 2.05 mm with a sensitivity of 55.9% and a specificity of 94.7%. The next optimal cut-off value was 1.75 mm with a sensitivity of 67.6% and a specificity of 82.4%. The area under the ROC curve was 0.78 (95% CI 0.68, 0.87, p < 0.05). Conclusions: Ultrasound-measured capsular width can be interpreted as an indirect sign of TMJ effusion. The critical cut-off for capsular width was 2 mm.

Effects of stabilization splints on the signs and symptoms of temporomandibular disorders of muscular origin: A systematic review

ABSTRACT Objective To assess effects of stabilization splints on signs and symptoms of temporomandibular disorders of muscular origin compared to other treatments. Methods A search for articles via six electronic databases and gray literature was conducted. The risk of bias was evaluated with the Cochrane Collaboration tool. The Grading of Recommendations Assessment, Development and Evaluation approach determined the certainty of evidence. Results Ten articles were included. Stabilization splints (n = 160 subjects) were reported to be as effective as other treatments (n = 209 patients) on analyzed outcomes (pressure pain threshold, pain during chewing, mouth opening, spontaneous pain intensity and by palpation). Five studies were judged at low and five at some concerns of risk of bias. The certainty of evidence was very low for all outcomes. Conclusion Positive effect on signs and symptoms of temporomandibular disorders of muscular origin, when managed with stabilization splint, could not be confirmed or refuted.

Intraoperative condylar positioning techniques on mandible in orthognathic surgery.

The surgical condylar displacement often resulted in relapse and serious symptoms of temporomandibular joint disorders (TMD) after orthognathic surgery. To minimize the displacement, numerous techniques have been proposed. To verify their accuracy in positioning and effectiveness in preventing post-operative TMD and relapse, we reviewed the literature related to intraoperative condylar positioning techniques on the mandible in this study. The literature on condylar positioning techniques was reviewed with two charts, including the non-computer-assisted and the computer-assisted positioning methods. The pre- and post-operative alterations of condyles, the post-operative temporomandibular joint (TMJ) function and surgical relapse were analysed regarding the techniques. The clinical usage and characteristics were reviewed as well. A total of 22 articles, including 907 patients, have been reported since 2001. Nearly all methods reach a considerable positioning accuracy within the range of 1-2mm and 1-2° from the pre-operative position. We ranked the accuracy of the methods from high to low: CAD/CAM CPDs > CAD/CAM titanium plate positioning > manual positioning > computer-assisted navigation systems > imaging positioning systems. Most skeletal class II and class III patients achieved great occlusion and had no TMJ dysfunction or relapse after condylar positioning. Both the non-computer-assisted and computer-assisted condylar positioning techniques reach considerable accuracy in locating the pre-operative condyle position and preventing TMJ dysfunction and surgical relapse. Different levels of surgeons and cases can benefit from multiple suggested positioning methods. Further research with large samples and long-term follow-up is worth looking forward to upgrading the current methods, improving the clinical utility and developing new positioning techniques.

The effects of treatment timing on the management of patients with multiple facial fractures and on the self-perception of TMD recovery

ABSTRACT Objective To investigate the effects of time on the orofacial functions and on the self-perception of temporomandibular disorders (TMD) recovery in a population of patients with multiple facial fractures. Methods Orofacial functions and self-perception of TMD recovery was verified in patients with midface and/or lower face fractures. Patients were divided according to the time between fracture reduction and the clinical assessments: 0–1 month (Group 1), 1–3 months (Group 2), and 15 >3 months (Group 3). Results Patients in Group 1 presented a greater compromise of swallowing and mastication when compared to patients with older fractures (p = 0.015), whereas patients in Group 3 presented a poorer TMD recovery (TMJ pain: p = 0.010 and tinnitus: p = 0.004). Conclusion Delays in functional treatments involving the myofunctional orofacial system have a negative impact on the recovery of essential orofacial functions and on TMD symptoms..

The Frequency of Temporomandibular Disorders, Surgical Complications, and Self-Reported Mental Health Problems in Orthognathic Patients.

To evaluate the frequency of signs and symptoms of temporomandibular disorders (TMD), surgical complications, and patient's self-reported mental health problems during orthognathic treatment. The clinical records of 145 patients treated with orthognathic treatment were retrospectively studied. Variables regarding occlusal parameters, treatment duration, TMD symptoms, complications, and self-reported mental health status at time points of T0 (beginning of the treatment), T1 (before surgery), and T2 (final examination) were evaluated. The variables were statistically compared with significance level of P < 0.05. A total of 51% (n = 74) of the patients had TMD symptoms at 1 or several time points, women having significantly more TMD signs and symptoms ( P = 0.002). Temporomandibular disorder signs and symptoms decreased significantly after orthognathic treatment ( P <0.001). At least 1 self-reported mental health-related factor during 1 or several time points (T0-T2) was recorded in 17.2% (n = 25) of the patients. There was no significant difference in frequency of self-reported mental health problems in patients with TMD signs and symptoms compared with patients without TMD signs and symptoms ( P > 0.05). The frequency of postoperative complications was 39.3%, being significantly higher after Bilateral Sagittal Split Osteothomy (BSSO, 48.7%). There was no difference in treatment duration of patients with self-reported mental health problems compared with patients without ( P > 0.05). In this study population, TMD signs and symptoms seem to be typical both in patients with or without self-reported mental health problems. Women had significantly more TMD symptoms. Orthognathic surgery treatment seems to have a positive effect on TMD signs and symptoms.

Sign and Symptom of Temporomandibular Joint Disorders and Associated Parafuncion Habits in Young Adults

Objective: The objective of this study was to determine the signs and symptoms of temporomandibular joint diseases and parafunctional habits contributing to TMD. Method: Using a structured proforma and questionnaire data was collected from 162 subjects to determine signs and symptoms of temporomandibular joint diseases and associated parafunctional habits contributing to TMD. Results: The results showed that most frequent reporting sign was painful TMJ(61.4% females)and (56.96% males)while least frequent sign was deviation of mandibular movement representing(24.09% and 26.58%) neck stiffness(26.0%and 22.7%)and mandibular deviation(24.09%and 26.58%).clicking and clenching was reported to be 49.39% and 42.16% in females and 39.24%and 40.50% in males respectively. The percentage distribution of headache was noted to be 42.16% in females and 40.50% in males. while 60.24% females and 44.30% males reported themselves to be stressed or tense. Painful muscles were however reported by 33.73% females and 27.84% males. Lip and cheek biting /chewing gums was the most common parafunctional habit(41.97%)with females significantly more than males, followed by nail biting and bruxism(15.43% and 14.19%).Thumb sucking was found to be present in 4.9% of individuals. However 23.45% reported themselves to be free of any habit. Conclusion: The study has shown that TMD remains largely undiagnosed in our general population and it can be related very well with anxiety, headache and bad lifestyle habits. Keywords: Temporomandibualr joint disorder(TMD), Sign and Symptoms, Parafunction

Is scoliosis related to mastication muscle asymmetry and temporomandibular disorders? A cross-sectional study

ObjectivePatients with adolescent idiopathic scoliosis (AIS) may face motor control problems and health disability barriers during mandibular movements and chewing. However, studies investigating the extent of these disadvantages, and possible associated factors are quite limited in patients with AIS. This study was conducted to gain a deeper perspective on the effect of AIS on temporomandibular disorders (TMD) and to contribute to the small amount of data on this subject. MethodsTwenty-nine patients with AIS and 29 age- and sex-matched asymptomatic controls participated in this cross-sectional study. Cobb's method was used to measure scoliosis curves. In both groups, the volume of the masseter muscle was determined on magnetic resonance imaging, and Helkimo and Fonseca anamnestic indexes were used to evaluate temporomandibular joint (TMJ). ResultsIt was observed that the TMD symptoms were higher in the AIS group (22.6- Helkimo and 1.2 - Fonseca) than the asymptomatic group (13.6 - Helkimo and 0.7 - Fonseca). There was no significant asymmetry in masseter volume in patients with AIS, however the volume of the masseter muscles was smaller in the AIS group (R = 14.6/L = 13.6) compared to the control group (R = 16.1/L = 16.2). ConclusionsThe study results indicate that spinal curvatures affect the anatomical, biomechanical, and kinesiological features of the masticatory system, and individuals with AIS may experience more chewing problems than asymptomatic individuals. Examining musculoskeletal properties of masticatory system can provide information about the limitation of the TMJ in patients with AIS.

Risk factors for temporomandibular disorders in young people

Aim to investigate the prevalence and risk factors for signs and symptoms of temporomandibular joint disorders (TMDs) in young people.&#x0D; Material and methods. A clinical examination and questionnaire were randomly administered to 199 students aged 17 to 28 years using a specially designed questionnaire chart. The respondents with identified laterotrusive or mediatrusive occlusal interferences underwent electromyography (4-channel EMG system "Synapsis", Neurotech) of masticatory muscles before and after elimination of occlusal interferences. Psychoemotional state was assessed using the Spielberger Hanin situational and personal anxiety test.&#x0D; Results. The results obtained revealed a high prevalence of signs and symptoms of dysfunctional disorders (87.9%), the leading signs of which were pain or stiffness in the head and neck region (52.7%), sounds (squeaks, clicks, crepitus) in one or both temporomandibular joints when chewing and opening the mouth (39.2%), feeling of pressure, stuffiness or noise in the ears (25.1%), pain when opening the mouth (21.6%). The number of such signs and symptoms was greater in persons with postural disorders and respondents after orthodontic treatment.&#x0D; Electromyographic study of patients with mediotrusive and laterotrusive contacts showed asynchronous contraction of the masticatory muscles during "protrusion / retrusion" and "opening / closing", increased electrical activity of the temporal muscle on the opposite side in the "right / left mediotrusion" test (111.5 27.1 V) compared with the indices of the subjects after the elimination of occlusal interferences (75 19.3 V; p 0.05). Assessment of the psychoemotional state of the examined patients revealed a moderate level of situational (38.9 points) and personal (38.3 points) anxiety.&#x0D; Conclusion. The signs and symptoms of TMDs are a common finding among young people, such as pain, stiffness in the head and neck, sounds in one or both joints when chewing and opening the mouth, a feeling of pressure, stuffiness or noise in the ears. The most significant risk factors for the development of TMDs in this age group are posture disorders, orthodontic treatment and occlusal obstructions, which affect muscle tone and increase the symptoms of TMDs.