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1.
Artículo en Inglés | MEDLINE | ID: mdl-33806739

RESUMEN

Orthodontic treatment acts through the application of forces and/or by stimulating and redirecting the functional forces within the craniofacial complex. Considering the interrelationship between craniomandibular and craniocervical systems, this intervention may alter craniocervical posture. Thus, our aim is to (a) compare craniocervical posture, hyoid bone position, and craniofacial morphology before, after, and also in the contention phase at least one year after the orthodontic treatment, in patients with temporomandibular disorders and (b) to verify whether the presence of condylar displacement, the skeletal class, or the facial biotype interferes with the abovementioned outcomes. To do so an observational, analytical, longitudinal, and retrospective design study was carried out. A non-probabilistic convenience sampling method was applied. The sample consisted of clinical records of patients diagnosed with temporomandibular disorders in order to compare pre-orthodontic treatment with post-orthodontic treatment (n = 42) and contention phase data (n = 26). A cephalometric analysis of several variables was performed. The p-value was set as 0.05. When the pre- and post-orthodontic treatment data were analyzed, there were statistically significant changes in variables concerning craniocervical posture (CV angle, C0-C1, and AA-PNS) and also concerning hyoid bone position (C3-Rgn). When pre- and post-orthodontic treatment and contention phase data were analyzed the variables concerning craniocervical posture (C0-C1, CVT/Ver, NSL/OPT, NSL/CVT, NSL/Ver; OPT/CVT, OPT/Ver) and facial biotype had statistically significant changes. This allowed us to conclude that in the sample studied, there were significant differences regarding hyoid bone position (pre- versus post-orthodontic treatment) and craniocervical posture (pre- versus post-orthodontic versus contention), with the craniocervical posture being prone to return to basal values. The presence of condylar displacement was found to significantly increase the H-H1 distance in the three moments of evaluation. Facial biotype was found to significantly increase the NSL/Ver angle on hypodivergent compared to hyperdivergent in the contention phase.


Asunto(s)
Trastornos de la Articulación Temporomandibular , Cefalometría , Cabeza/anatomía & histología , Humanos , Hueso Hioides , Postura , Estudios Retrospectivos , Trastornos de la Articulación Temporomandibular/terapia
2.
Artículo en Inglés | MEDLINE | ID: mdl-33809450

RESUMEN

Studies on the role of physical fitness, physical activity and obesity as risk factors for temporomandibular disorders (TMD) are scarce. The aim of the present study was to evaluate the association of TMD symptoms with physical fitness, physical activity and body mass index (BMI) among Finnish conscripts. The study sample consisted of 8685 Finnish conscripts. Data on self-reported TMD symptoms were used as outcome variables. Physical activity (questionnaire), physical fitness (measured with physical tests: Cooper test, push-ups, sit-ups and standing long jump) and body mass index (BMI) were used as explanatory variables. The associations between TMD symptoms and explanatory variables were evaluated using Chi-squared test and logistic regression analysis. The prevalence of all TMD symptoms was significantly higher among those who exercised more rarely than weekly. Pain-related TMD symptoms were also significantly more frequent among those who were overweight (BMI ≥ 25). Poor push-up results and overweight (BMI ≥ 25) were significantly associated with jaw pain and TMJ pain at jaw rest. The present study showed that good physical fitness may be a protective factor against TMD pain. Dentists should also be prepared to motivate TMD patients to physical activity and regular exercise as part of the treatment.


Asunto(s)
Trastornos de la Articulación Temporomandibular , Finlandia/epidemiología , Humanos , Aptitud Física , Prevalencia , Autoinforme , Trastornos de la Articulación Temporomandibular/epidemiología
3.
BMJ Case Rep ; 14(4)2021 Apr 22.
Artículo en Inglés | MEDLINE | ID: mdl-33888473

RESUMEN

Complications related to lateral pterygoid muscle (LPM) botulinum toxin A (BtA) injection for recurrent temporomandibular joint dislocation are uncommon. No cases of velopharyngeal dysfunction (VPD) following LPM BtA injection have been reported to date. This report details the perioperative and follow-up findings for a patient developing VPD following LPM BtA injection.


Asunto(s)
Toxinas Botulínicas Tipo A , Luxaciones Articulares , Trastornos de la Articulación Temporomandibular , Toxinas Botulínicas Tipo A/efectos adversos , Humanos , Luxaciones Articulares/inducido químicamente , Luxaciones Articulares/tratamiento farmacológico , Músculos Pterigoideos
4.
Medicina (Kaunas) ; 57(4)2021 Apr 07.
Artículo en Inglés | MEDLINE | ID: mdl-33916982

RESUMEN

Background and Objectives: Musculoskeletal injuries represent a pathological condition due to limited joint motility and morphological and functional alterations of the muscles. Temporomandibular disorders (TMDs) are pathological conditions due to alterations in the musculoskeletal system. TMDs mainly cause temporomandibular joint and masticatory muscle dysfunctions following trauma, along with various pathologies and inflammatory processes. TMD affects approximately 15% of the population and causes malocclusion problems and common symptoms such as myofascial pain and migraine. The aim of this work was to provide a transcriptomic profile of masticatory muscles obtained from TMD migraine patients compared to control. Materials and Methods: We used Next Generation Sequencing (NGS) technology to evaluate transcriptomes in masseter and temporalis muscle samples. Results: The transcriptomic analysis showed a prevalent downregulation of the genes involved in the myogenesis process. Conclusions: In conclusion, our findings suggest that the muscle regeneration process in TMD migraine patients may be slowed, therefore therapeutic interventions are needed to restore temporomandibular joint function and promote healing processes.


Asunto(s)
Trastornos de la Articulación Temporomandibular , Transcriptoma , Humanos , Músculo Masetero , Músculos Masticadores , Regeneración/genética , Trastornos de la Articulación Temporomandibular/genética
5.
Hua Xi Kou Qiang Yi Xue Za Zhi ; 39(2): 203-208, 2021 Apr 01.
Artículo en Chino | MEDLINE | ID: mdl-33834676

RESUMEN

OBJECTIVES: To investigate the differences in the temporomandibular joints (TMJs) between patients with anterior disc displacement with reduction (ADDwR) and asymptomatic subjects by using 3D morphometric measurements. METHODS: A total of 15 patients with ADDwR and 10 asymptomatic subjects were enrolled. Then, 3D models of the maxilla and mandible were reconstructed using MIMICS 20.0. Nine morphologic parameters of TMJs on both sides were measured on the 3D solid model. The differences in the parameters were analyzed between the patients and the asymptomatic subjects and between the left and right sides of each group. RESULTS: The horizontal and coronal condylar angles on the ipsilateral side of the patients were significantly greater than those of the asymptomatic subjects (P<0.01). Meanwhile, the sagittal ramus angle (SRA), medial joint space, lateral joint space, superior joint space, anterior joint space, and posterior joint space in the patients were significantly lower than those in the asymptomatic subjects (P<0.01). CONCLUSIONS: ADDwR will increase the condylar angles to be significantly greater than the normal level and decrease SRA and articular spaces to be significantly smaller than the normal level. The condyles will be displaced upward, closer to the fossa.


Asunto(s)
Luxaciones Articulares , Trastornos de la Articulación Temporomandibular , Diente , Humanos , Imagen por Resonancia Magnética , Mandíbula , Cóndilo Mandibular , Maxilar , Articulación Temporomandibular
6.
Hua Xi Kou Qiang Yi Xue Za Zhi ; 39(2): 209-214, 2021 Apr 01.
Artículo en Chino | MEDLINE | ID: mdl-33834677

RESUMEN

OBJECTIVES: To evaluate the value of arthroscopy in the diagnosis and treatment of synovial chondromatosis of the temporomandibular joint (TMJSC). METHODS: The cases of 16 patients preliminarily diagnosed with TMJSC by magnetic resonance imaging (MRI) from July 2011 to December 2018 were analyzed retrospectively. If the diagnosis was confirmed by arthroscopy, the opening operation was performed. The preoperative MRI, arthroscopy and opening operation, postoperative pathology and postoperative MRI of confirmed cases were analyzed, and clinical follow-up was performed to evaluate the curative effect of open surgery. The degree of mouth opening and visual analogue scale (VAS) scores for pain pre-operation and during follow-up of the confirmed cases were analyzed by t-test. RESULTS: Fourteen cases of TMJSC were diagnosed by arthroscopy, consistent with the postoperative pathological diagnosis. Postoperative MRI examination showed that articular cavity lesions basically disappeared. Ten patients with synovial chondromatosis were followed-up (follow-up rate, 71.4%) from 6 months to 7 years and 8 months (average follow-up time, 17.6 months); no recurrence was found, and clinical symptoms improved by varying degrees. Before operation and at follow-up, t-test results of opening degree difference were t=7.757, P<0.05; t-test results of VAS were t=-3.274, P<0.05. CONCLUSIONS: Arthroscopy is essential in the diagnosis and treatment of TMJ synovial chondromatosis.


Asunto(s)
Condromatosis Sinovial , Trastornos de la Articulación Temporomandibular , Artroscopía , Condromatosis Sinovial/diagnóstico , Condromatosis Sinovial/cirugía , Humanos , Imagen por Resonancia Magnética , Estudios Retrospectivos , Articulación Temporomandibular , Trastornos de la Articulación Temporomandibular/diagnóstico , Trastornos de la Articulación Temporomandibular/cirugía
7.
Int J Prosthodont ; 34(2): 173-182, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33882564

RESUMEN

PURPOSE: To compare the efficacy of low-dose laser therapy to that of conservative treatment using two different occlusal splints (stabilization and anterior repositioning splints) in patients with internal derangements of the temporomandibular joint (TMJ). MATERIALS AND METHODS: The study population consisted of patients with disc displacement with reduction diagnosed according to the Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD) Axis I and Axis II. In addition, disc displacement with reduction was confirmed in all patients using TMJ ultrasonography. These tests were conducted for 6 months with an interim control in the third month. The "clicking" sound from the joint on opening and closing the mouth and the extent to which the mouth opened vertically and laterally were assessed. In all, 20 patients received low-dose laser therapy, 20 were treated with a stabilization splint, and 20 were treated with an anterior repositioning splint. In addition, 10 untreated patients were included as a patient control group, and a further 10 healthy subjects were included as a healthy control group. Changes in the condition were assessed based on the results of the RDC/TMD Axis II and with the use of an algometer. RESULTS: The anterior repositioning splint group showed improvement in the "clicking" sound during mouth opening. Lateral movement improved significantly in patients who received laser therapy. In the patient control group, the click disappeared during mouth opening, the algometrically determined pain improved, and the lateral movement increased. There were no statistically significant differences between groups in the improvement of vertical mouth movement or in the clicking sound during mouth closing. CONCLUSION: Each treatment modality applied in this study separately produced positive results for the clicking sound, restrictions in vertical and lateral movements, and reduction of the pressure pain threshold observed in cases of TMJ irregularity. The decision regarding which treatment modality should be employed can be made based on the patient's symptoms. However, this study also indicates that TMJ derangements can resolve spontaneously when left untreated.


Asunto(s)
Luxaciones Articulares , Trastornos de la Articulación Temporomandibular , Humanos , Luxaciones Articulares/diagnóstico por imagen , Luxaciones Articulares/terapia , Mandíbula , Ferulas Oclusales , Articulación Temporomandibular , Trastornos de la Articulación Temporomandibular/terapia
8.
Quintessence Int ; 52(6): 548-559, 2021 May 07.
Artículo en Inglés | MEDLINE | ID: mdl-33880912

RESUMEN

OBJECTIVES: Effects of modern cellular technology on our lives is a relatively new topic of interest. The aim of the present study was to investigate the effect of smartphone use on daytime sleepiness, temporomandibular disorders (TMD), and bruxism (sleep and awake) among young adults in Israel. METHOD AND MATERIALS: Questionnaires on demographic variables, mobile phone use characteristics, anxiety, depression, daytime sleepiness, bruxism (sleep and awake), and diagnosis of TMD were filled in by ultra-Orthodox young adults (18 to 35 years of age) using a simple mobile device with no internet connection, religious young adults who use an internet-connected smartphone solely for work purposes, and secular young adults with an internet-connected smartphone for unlimited use. RESULTS: Various aspects of smartphone use, including being awakened at night by the phone, stress caused by information delivered by the phone, and stress from phone overuse increased the risks of daytime sleepiness, TMD, and bruxism. Those sequelae are associated with substantial negative effects on both the individual and society. High risks of motor vehicle accidents, chronic orofacial pain, and irreversible damage to hard dental tissue structures are some of those negative consequences. CONCLUSIONS: The adverse effects of smartphone use on daytime sleepiness, TMD, and bruxism are substantial. Their influence on public health and health care costs are causes of concern. (Quintessence Int 2021;52:548-559; doi: 10.3290/j.qi.b1244431).


Asunto(s)
Bruxismo , Trastornos de Somnolencia Excesiva , Trastornos de la Articulación Temporomandibular , Humanos , Israel , Teléfono Inteligente , Adulto Joven
9.
BMC Oral Health ; 21(1): 182, 2021 04 09.
Artículo en Inglés | MEDLINE | ID: mdl-33836733

RESUMEN

BACKGROUND: Occlusal stress from oral parafunctional habits is one of the causes of temporomandibular disorders (TMD) and mandibular torus (MT). Although some studies have investigated the correlation between TMD and MT, understanding of the relationships between types of TMD and MT is insufficient. Therefore, we conducted this study to investigate the associations between presence of MT and TMD types. METHODS: This study included 77 patients diagnosed with TMD who first visited our clinic for TMD between March 2019 and July 2020. Among them, 30 (38.9%) had MT, and 54 (70.1%) had oral parafunction. Parafunctional activity during sleep was confirmed using a temporary splint for checking bruxism (TSCB). RESULTS: The relationship between prevalence of MT and oral parafunction in TMD patients was not statistically significant (P = 0.131), but the odds ratio was relatively high at 2.267. An analysis of TMD type revealed that Type I, which is classified as myalgia of the masticatory muscles, and MT had a significant association (P = 0.011). We fabricated a TSCB for 27 patients to wear during sleep and confirmed that 23 (85.2%) had nocturnal bruxism. The TSCB results and presence of MT showed a significant relationship (P = 0.047). CONCLUSION: Through the results of this study, clinicians may consider the hyperactivity of masticatory muscles in the presence of MT when treating TMD patients. In addition, TSCB has a great diagnostic value as it can be easily manufactured and be useful for discovering pre-existing oral parafunctions that patients are not aware of.


Asunto(s)
Bruxismo , Trastornos de la Articulación Temporomandibular , Bruxismo/complicaciones , Humanos , Músculos Masticadores , Factores de Riesgo , Férulas (Fijadores)
10.
Sensors (Basel) ; 21(9)2021 Apr 28.
Artículo en Inglés | MEDLINE | ID: mdl-33924981

RESUMEN

Modern dentistry commonly uses a variety of imaging methods to support diagnosis and treatment. Among them, cone beam computed tomography (CBCT) is particularly useful in presenting head structures, such as the temporomandibular joint (TMJ). The determination of the morphology of the joint is an important part of the diagnosis as well as the monitoring of the treatment results. It can be accomplished by measurement of the TMJ gap width at three selected places, taken at a specific cross-section. This study presents a new approach to these measurements. First, the CBCT images are denoised using curvilinear methods, and the volume of interest is determined. Then, the orientation of the vertical cross-section plane is computed based on segmented axial sections of the TMJ head. Finally, the cross-section plane is used to determine the standardized locations, at which the width of the gap between condyle and fossa is measured. The elaborated method was tested on selected TMJ CBCT scans with satisfactory results. The proposed solution lays the basis for the development of an autonomous method of TMJ index identification.


Asunto(s)
Cóndilo Mandibular , Trastornos de la Articulación Temporomandibular , Tomografía Computarizada de Haz Cónico , Humanos , Articulación Temporomandibular/diagnóstico por imagen , Trastornos de la Articulación Temporomandibular/diagnóstico por imagen
11.
BMC Oral Health ; 21(1): 140, 2021 03 20.
Artículo en Inglés | MEDLINE | ID: mdl-33743662

RESUMEN

BACKGROUND: Temporomandibular disorders (TMD) are related to psychological factors. Adolescence is one of the stages in life with more psychosocial vulnerability, which is dissimilar in rural and urban zones. Thus, the aim of this investigation was to evaluate the association between psychological factors (symptoms of anxiety, depression and somatization) and TMD in adolescents between 12 and 15 years, belonging to urban and rural zones of Colombia. METHODS: 180 subjects aged 12-15 years (mean 13.8, SD 1.2), enrolled in public schools in the rural (n = 90) and urban (n = 90) zones were included. All subjects were evaluated using the DC/TMD instrument; the Axis I was applied for the clinical examination and the Axis II for the psychological evaluation. Data were analyzed by means of T-student, Mann-Whitney, Kruskall-Wallis tests, Pearson Chi square and multiple-variable analysis with logistic regression. RESULTS: Forty percent of the included subjects presented some type of TMD. TMD related to pain were the most common (25.5% of the studied adolescents), being myalgia the most common (20% of the adolescents in urban zone and 31.1% of the adolescents in the rural zone). There was no difference between the TMD present in males and females, but there were differences in the symptoms of Anxiety, and Somatization (p < 0.05). TMD and psychological factors were more prevalent in children with 13 years of age. A statistically significant association between TMD and symptoms of Anxiety (Pearson Chi squared 25.57, p = 0.04), depression (Pearson Chi squared 33.28, p = 0.03) and somatization (Pearson Chi squared 25.79, p = 0.04) was found in subjects from rural zones. No associations between psychological aspects and TMD were found in subjects from urban zones, but overall all psychological factors significantly influenced TMD. CONCLUSION: This study indicates Myalgia to be the most prevalent TMD in studied Colombian adolescents. Pain-related TMDs are associated with psychological factors in the adolescent population of rural Colombia. Symptoms of anxiety, depression and somatization were found to be associated to TMD, even when the frequency was not necessarily severe.


Asunto(s)
Depresión , Trastornos de la Articulación Temporomandibular , Adolescente , Ansiedad/epidemiología , Niño , Colombia/epidemiología , Depresión/epidemiología , Femenino , Humanos , Masculino , Dolor , Trastornos de la Articulación Temporomandibular/epidemiología
12.
Arch Oral Biol ; 125: 105104, 2021 May.
Artículo en Inglés | MEDLINE | ID: mdl-33706151

RESUMEN

OBJECTIVES: The objective of this systematic review is to evaluate the role of mesenchymal stem cells in the regenerative treatment of temporomandibular joint resorption. DESIGN: Search strategies were performed in the following databases: PubMed/MEDLINE, EMBASE, Cochrane Collaboration Library, and Web of Science. Two independent reviewers selected the included articles using a two-phase process based on the eligibility criteria. The reviewers independently collected the required information from the included articles. The methodological quality of the selected studies was assessed individually. RESULT: In accordance with the inclusion and exclusion criteria, 703 studies were found and 8 articles were included. Thus, six studies using animal models and two human studies were included in this systematic review. CONCLUSION: Based on the data of our systematic review, the use of mesenchymal stem cells is a promising method for the repair and regeneration of temporomandibular joint components.


Asunto(s)
Células Madre Mesenquimatosas , Trastornos de la Articulación Temporomandibular , Animales , Humanos , Regeneración , Articulación Temporomandibular , Trastornos de la Articulación Temporomandibular/terapia
13.
Altern Ther Health Med ; 27(2): 22-26, 2021 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-33711819

RESUMEN

Background: Auricular acupuncture (AA) is a complementary/integrative therapy, and can be used as adjuvant treatment in sleep disorders, anxiety and the painful symptomatology of temporomandibular disorders (TMDs). Objective: The aim of this investigation was to evaluate the effectiveness of AA in reducing the symptoms of sleep disorders, anxiety and TMDs by applying the Fletcher and Luckett, Beck-BAI and RDC/TMD questionnaires: Axis II, respectively. Design: This was a nonrandomized clinical trial in which AA was administered to patients between the ages of 20 and 45 years from the School of Dentistry at Ribeirão Preto, São Paolo, Brazil, who had at least one of the following: sleep disorder, anxiety or TMD. Intervention: Mustard seeds were applied to predetermined auricular acupoints including: Shen Men, neurovegetative system (sympathetic), kidney, anxiety, stomach, maxilla and mandible, liver and stress, once a week for 8 weeks. Outcome Measures: To analyze the reduction in sleep disorder symptoms, we used the Fletcher and Luckett questionnaire; for anxiety symptoms, the Beck-BAI questionnaire, and for the degree of chronic TMD pain, the RDC/TMD (Axis II) questionnaire. Results: Data on sleep, anxiety and TMD disorders were analyzed via Fisher's exact, Wilcoxon and Chi-Square non-parametric tests (α = 0.05), respectively. Reduction in sleep disorder symptoms after the proposed intervention was verified, showed a statistically significant difference (P = .014). There was a reduction in mean anxiety score and a decrease in painful TMD symptoms, but no significant difference (P = .50; P = .947, respectively) before and after AA. Conclusion: In our study, AA was effective in reducing sleep disorder symptoms and our data suggests some relief of symptoms of anxiety and TMD pain.


Asunto(s)
Acupuntura Auricular , Trastornos del Sueño-Vigilia , Trastornos de la Articulación Temporomandibular , Adulto , Ansiedad/terapia , Trastornos de Ansiedad , Brasil , Depresión , Humanos , Masculino , Persona de Mediana Edad , Sueño , Trastornos del Sueño-Vigilia/terapia , Trastornos de la Articulación Temporomandibular/terapia , Adulto Joven
14.
J Oral Rehabil ; 48(5): 542-550, 2021 May.
Artículo en Inglés | MEDLINE | ID: mdl-33682178

RESUMEN

INTRODUCTION: Clinical presentation of oromandibular dystonia (OMD) is variable that can be further complicated by the presence of temporomandibular disorder (TMD) symptoms. We sought to evaluate variations in the clinical presentation of OMD patients, particularly TMD-related characteristics, in two clinical settings. METHODS: In a cross-sectional study design, a Web-based data collection survey was provided to eligible patients with OMD from movement disorder (MD) and oro-facial pain (OFP) clinics. The survey questionnaire was designed to collect information on demographic characteristics, clinical presentation particularly related to TMD, quality of life and treatment outcomes. Validated questionnaires were used when available such as the TMD Pain Screener, EuroQol 5-Dimensions 5-Levels (EQ-5D-5L), Jaw Functional Limitation Scale and Global Rating of Change Scale. RESULTS: Of 53 eligible patients, 31 responded to the survey for a 58% response rate. Forty-eight per cent of patients in the MD clinic and 60% of patients in the OFP clinic reported jaw pain along with involuntary movements. Of those, 90% from the MD group and 83% from the OFP group screened positive with the TMD Pain Screener at the onset of symptoms based on recall. Positive TMD Pain Screener response was observed in about 40% of patients in both clinics within 30 days of questionnaire response. No statistically significant differences were observed between two groups for any measured variables. CONCLUSION: Patients with OMD have features of TMD, irrespective of the clinical setting in which they seek and receive care. OMD patients from both clinics were similar in terms of clinical presentation, quality of life and treatment outcomes.


Asunto(s)
Distonía , Trastornos de la Articulación Temporomandibular , Estudios Transversales , Dolor Facial , Humanos , Calidad de Vida , Trastornos de la Articulación Temporomandibular/complicaciones , Resultado del Tratamiento
15.
Prim Dent J ; 10(1): 132-140, 2021 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-33722124

RESUMEN

The symptoms of TMJ Osteoarthrosis/Osteoarthritis(TMJ OA) are characteristic and in most cases specific to the disorder. There is, however, an overlap of symptoms with other TMDs.Treatment of TMJ OA is generally directed towards management of the symptoms as the temporomandibular joint does retain the capacity throughout life to repair and remodel. Non-conservative and invasive treatment is only rarely necessary.It should be remembered that the mandibular condyle retains the capacity to repair and remodel throughout life and patients should be encouraged to bear this in mind. Conservative measures are usually sufficient to treat symptoms and a period of time should be allowed to elapse before undertaking a more aggressive treatment plan, which, in the overwhelming majority of patients, will not be necessary. This disorder should be approached on the terms of 'a quality of life issue' and treatment should be directed towards patient needs.


Asunto(s)
Luxaciones Articulares , Osteoartritis , Trastornos de la Articulación Temporomandibular , Humanos , Osteoartritis/diagnóstico , Osteoartritis/terapia , Calidad de Vida , Articulación Temporomandibular , Disco de la Articulación Temporomandibular , Trastornos de la Articulación Temporomandibular/diagnóstico , Trastornos de la Articulación Temporomandibular/terapia
16.
J Int Med Res ; 49(2): 300060521996517, 2021 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-33641518

RESUMEN

OBJECTIVE: To determine the prevalence, sociodemographic features, and clinical presentation of temporomandibular joint disorder in otorhinolaryngological practice. METHODS: This prospective hospital-based study involved patients diagnosed with temporomandibular joint disorder in our institution's ear, nose, and throat department. Data for this study were obtained from the patients using pretested interviewer-assisted questionnaires. RESULTS: The prevalence of temporomandibular joint disorder in this study was 1.3%. The study population included 17 (26.2%) male patients with a male:female ratio of 1.0:2.8. Joint disorder accounted for 75.4% of all disorders, while both mastication muscle and joint disorder accounted for 21.5%. A majority of the patients (47.7%) presented between weeks 1 and 13 of the illness. Unilateral temporomandibular joint disorder accounted for 98.5% of all disorders. The main otologic clinical features were earache and a dull tympanic membrane in 100% and 35.4% of patients, respectively. Middle ear assessment revealed type A in 73.8% of patients and type B in 20.0% according to Jerger's classification system of tympanometry. Most patients (81.5%) were referred by their family physician. All patients had undergone prehospital treatment prior to presentation. CONCLUSION: Temporomandibular joint disorder is a common presentation in medical practice. Common clinical features include ear, joint, and mastication muscle disorders.


Asunto(s)
Dolor de Oído , Trastornos de la Articulación Temporomandibular , África del Sur del Sahara , Femenino , Humanos , Masculino , Masticación , Estudios Prospectivos , Trastornos de la Articulación Temporomandibular/diagnóstico , Trastornos de la Articulación Temporomandibular/epidemiología
17.
Ann Palliat Med ; 10(3): 2880-2888, 2021 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-33691457

RESUMEN

BACKGROUND: Despite the association of masticatory function with head posture and mandible movement, the impact of head posture on masseter muscle electrical activity remains unclear. This study aimed to investigate the electrical activity of the anterior temporal, masseter, superior trapezius, and sternocleidomastoid muscles in temporomandibular disorder (TMD) patients in three different head positions and compare the findings with those for healthy subjects. METHODS: The study included 16 TMD patients and 17 healthy subjects. Surface electromyography (sEMG) was used to assess the bilateral anterior temporalis, masseter, superior trapezius, and sternocleidomastoid muscle activities. The maximal voluntary contraction (MVC) and root mean square (RMS) sequence of each muscle were measured in three head positions. Mixed analysis of variance was used to evaluate the effects of head posture on muscle electrical activity in each group. RESULTS: The group differences for the bilateral masseter muscles were significant in the relaxation position, neutral head position (NHP), and relaxation position with tooth contact (P<0.05). In both groups, the basal RMSs of the bilateral anterior temporalis muscle in the relaxation position with tooth contact was significantly higher than that in the NHP (P<0.05). In both groups, the basal RMSs of the bilateral masseter muscles in the relaxation position with tooth contact was higher than that in the relaxation position and NHP, with significant differences (P<0.05). CONCLUSIONS: During the management of TMD patients, physical therapists should focus on patient education regarding maintenance of a relaxed position and establish appropriate rehabilitation programs to reduce muscle activity.


Asunto(s)
Músculo Masetero , Trastornos de la Articulación Temporomandibular , Voluntarios Sanos , Humanos , Músculos Masticadores , Postura
18.
J Int Med Res ; 49(3): 3000605211000526, 2021 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-33752510

RESUMEN

Synovial chondromatosis (SC) is a benign condition characterized by the formation of metaplastic cartilage in the synovial membrane of the joint, resulting in numerous attached and unattached osteocartilaginous bodies. SC mostly affects the large synovial joints, especially the knee, hip, elbow, and ankle, whereas involvement of the temporomandibular joint (TMJ) is rare. Approximately 240 cases of SC of the TMJ have been reported in the English-language literature to date. The number of loose bodies varies among patients but usually ranges from the dozens to around 100. We herein report a case of SC of the TMJ accompanied by approximately 400 loose bodies in a healthy 53-year-old woman. Such a high number of loose bodies within a small space is extremely rare. We also include a brief discussion about the differential diagnoses and current diagnostic approaches to SC of the TMJ. Notably, delayed diagnosis or misdiagnosis is common because of the nonspecific nature of the presenting complaints.


Asunto(s)
Condromatosis Sinovial , Cuerpos Libres Articulares , Trastornos de la Articulación Temporomandibular , Condromatosis Sinovial/diagnóstico por imagen , Condromatosis Sinovial/cirugía , Femenino , Humanos , Cuerpos Libres Articulares/diagnóstico por imagen , Cuerpos Libres Articulares/cirugía , Persona de Mediana Edad , Membrana Sinovial , Articulación Temporomandibular/diagnóstico por imagen , Articulación Temporomandibular/cirugía , Trastornos de la Articulación Temporomandibular/diagnóstico por imagen , Trastornos de la Articulación Temporomandibular/cirugía
19.
J Oral Facial Pain Headache ; 35(1): 17-29, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33730123

RESUMEN

AIMS: To review randomized clinical trials on arthrocentesis for managing temporomandibular disorders (TMD) and to discuss the clinical implications. METHODS: On March 10, 2019, a systematic search of relevant articles published over the last 20 years was performed in PubMed, as well as in Scopus, the authors' personal libraries, and the reference lists of included articles. The focus question was: In patients with TMD (P), does TMJ arthrocentesis (I), compared to any control treatment (C), provide positive outcomes (O)? RESULTS/CONCLUSION: Thirty papers were included comparing TMJ arthrocentesis to other treatment protocols in patients with disc displacement without reduction and/or closed lock (n = 11), TMJ arthralgia and/or unspecific internal derangements (n = 8), or TMJ osteoarthritis (n = 11). In general, the consistency of the findings was poor because of the heterogenous study designs, and so caution is required when interpreting the meta-analyses. In summary, it can be suggested that TMJ arthrocentesis improves jaw function and reduces pain levels, and the execution of multiple sessions (three to five) is superior to a single session (effect size = 1.82). Comparison studies offer inconsistent findings, with the possible exception of the finding that splints are superior in managing TMJ pain (effect size = 1.36) compared to arthrocentesis, although this conclusion is drawn from very heterogenous studies (I2 = 94%). The additional use of cortisone is not effective for improving outcomes, while hyaluronic acid or platelet-rich plasma positioning may have additional value according to some studies. The type of intervention, the baseline presence of MRI effusion, and the specific Axis I diagnosis do not seem to be important predictors of effectiveness, suggesting that, as in many pain medicine fields, efforts to identify predictors of treatment outcome should focus more on the patient (eg, age, psychosocial impairment) than the disease.


Asunto(s)
Osteoartritis , Trastornos de la Articulación Temporomandibular , Artrocentesis , Humanos , Osteoartritis/terapia , Rango del Movimiento Articular , Articulación Temporomandibular , Trastornos de la Articulación Temporomandibular/terapia , Resultado del Tratamiento
20.
J Oral Facial Pain Headache ; 35(1): 41-53, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33730126

RESUMEN

AIMS: To investigate the associations between temporomandibular disorders (TMDs) and sleep disorders in adult subjects. METHODS: The PubMed, Embase, Evidence-Based Medicine Reviews, and ProQuest Dissertations & Theses databases were searched for studies published in English up to September 2019. Unpublished/gray literature and reference lists of identified articles were also examined. Inclusion criteria were male and female adults, presence or absence of a TMD based on the RDC/TMD or DC/TMD criteria, presence or absence of a sleep disorder according to the International Classification of Sleep Disorders, and any of the following study designs: cross-sectional, case-control, or longitudinal. Methodologic quality assessment was conducted using the National Heart, Lung, and Blood Institute quality assessment tools. RESULTS: Twenty-two studies (11 cross-sectional, 9 case-control, 1 prospective cohort, and 1 mixed design) met the inclusion criteria. TMDs were assessed independently in relation to sleep bruxism (SB), obstructive sleep apnea (OSA), and sleep quality (SQ). All studies but one assessed TMDs using the RDC/TMD criteria. The relation between the TMD and the different sleep disorders was conflicting for SB and positive for OSA and SQ. Five studies were of good quality, and 17 were of fair quality. CONCLUSIONS: The evidence is inconclusive regarding the relationship between TMDs and SB and insufficient regarding the relationship with OSA. There is consistently fair evidence to support an association between TMD and SQ. This study highlights the need for higher-quality longitudinal studies to clarify the association between TMDs and sleep disorders.


Asunto(s)
Bruxismo del Sueño , Trastornos del Sueño-Vigilia , Trastornos de la Articulación Temporomandibular , Adulto , Estudios Transversales , Femenino , Humanos , Masculino , Estudios Prospectivos , Bruxismo del Sueño/complicaciones
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