19,940 results match your criteria Temporomandibular Disorders

Centric relation critically revisited - What are the clinical implications?

J Oral Rehabil 2021 Jun 23. Epub 2021 Jun 23.

Clinical Professor Emeritus of Orthodontics, Department of Orthodontics, University of Illinois College of Dentistry, Chicago, IL, USA.

Purpose Of The Article: Centric relation is a dental term that has undergone many alterations over the years, which in turn have led to significant clinical controversies. These continuing changes in the meaning of the term CR have not only led to confusion, but they also have resulted in a variety of unnecessary diagnostic and therapeutic procedures. Analysis of the dental literature reveals ongoing misunderstanding and disagreement regarding that term among both clinicians and academic dentists. Read More

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Hearing impairment and diverse health outcomes : An umbrella review of meta-analyses of observational studies.

Wien Klin Wochenschr 2021 Jun 22. Epub 2021 Jun 22.

Vision and Eye Research Institute (VERI), School of Medicine, Anglia Ruskin University, Young Street, CB1 2LZ, Cambridge, UK.

Background: Globally, it is estimated that approximately 1.3 billion people live with some form of hearing impairment. Major causes of hearing loss include infection/disease, age-related factors, and occupational factors. Read More

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Genetic variation in catechol-O-methyltransferase is associated with individual differences in conditioned pain modulation in healthy subjects.

J Gene Med 2021 Jun 22:e3374. Epub 2021 Jun 22.

Department of Oral Biology, Rutgers School of Dental Medicine, Newark, NJ, USA.

Background: Genetic variation in the catechol-O-methyltransferase (COMT) gene is associated with sensitivity to both acute experimental pain and chronic pain conditions. Four single nucleotide polymorphisms (SNPs) have traditionally been used to infer three common haplotypes designated as low, average and high pain sensitivity (LPS, APS and HPS) and are reported to affect both COMT enzymatic activity and pain sensitivity. One mechanism that may partly explain individual differences in sensitivity to pain is Conditioned Pain Modulation (CPM). Read More

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A Decade of Complications Following Total Temporomandibular Joint Reconstruction (TJR) in a Patient with Ehlers-Danlos Syndrome. Another Surgical Misadventure or An Absolute Contraindication for TJR?

J Oral Maxillofac Surg 2021 May 19. Epub 2021 May 19.

Associate Professor of Surgery, Chief of Oral & Maxillofacial Surgery, University of Cincinnati, Department of Surgery, Division of Oral & Maxillofacial Surgery, Cincinnati, OH. Electronic address:

This report describes an extensive surgical journey for a patient with Ehlers-Danlos syndrome (EDS) who underwent a total temporomandibular joint reconstruction and illustrates an ongoing challenge for oral and maxillofacial surgeons treating patients with connective tissue disorders and managing chronic pain symptoms. The surgical team attempted multiple procedures including 2 failed total temporomandibular joint replacements and a myocutaneous vascularized free flap. This case demonstrates the potential for postoperative complications in patients with Ehlers-Danlos syndrome. Read More

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Physical therapist guided active intervention of chronic temporomandibular disorder presenting as ear pain: A case report.

Physiother Theory Pract 2021 Jun 21:1-13. Epub 2021 Jun 21.

Rehabilitation Department, Pantai Jerudong Park Medical Centre, Brunei Darussalam.

This case report describes the successful physical therapy management of a 40-year-old female who presented with left ear pain referred from the temporomandibular joint. Diagnosis was primarily based on clinical examination findings and ruling out of red flags. Guidance was given on active self-care approaches consisting of pain neuroscience education designed with individualized pain curriculum, exercise therapy, manual therapy, and breathing exercises for a period of  sixweeks. Read More

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Conceptualizing the clinical decision-making process in managing temporomandibular disorders: A qualitative study.

Eur J Oral Sci 2021 Jun 17:e12811. Epub 2021 Jun 17.

School of Dental Sciences, Newcastle University, Newcastle, UK.

Management of patients with temporomandibular disorders (TMD) appears to be more challenging than for other dental conditions. This study aimed to explore the decision-making process in TMD management, and thereby to conceptualize the decision-making process in dentistry. Individual semi-structured interviews were conducted during 2018 and 2019 with a purposive sample of 22 general dental practitioners from the Public Dental Healthcare Services and private practices in the Region of Västerbotten, Northern Sweden. Read More

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Number and type of temporomandibular disorder symptoms: their associations with psychological distress and oral health-related quality of life.

Oral Surg Oral Med Oral Pathol Oral Radiol 2021 May 12:4624. Epub 2021 May 12.

Center for TMD & Orofacial Pain, Peking University School & Hospital of Stomatology, Beijing, China; Department of Oral & Maxillofacial Radiology, Peking University School & Hospital of Stomatology, Beijing, China; National Clinical Research Center for Oral Diseases, Beijing, China; National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing, China; Beijing Key Laboratory of Digital Stomatology, Beijing, China. Electronic address:

Objective: In this case-control study, we investigated the presence of differing numbers and types of temporomandibular disorder (TMD) symptoms, their association with psychological distress, and their impact on oral health-related quality of life (OHRQoL).

Study Design: We recruited a total of 814 participants with TMD and 147 control subjects. The participants were instructed to complete the Diagnostic Criteria for Temporomandibular Disorders Symptom Questionnaire; the Depression, Anxiety and Stress Scale-21; and the Oral Health Impact Profile-Temporomandibular Disorders. Read More

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Comparison of stress distribution of TMJ with different mandibular deformities under incisal clenching.

Comput Methods Biomech Biomed Engin 2021 Jun 18:1-8. Epub 2021 Jun 18.

Key Lab for Biomechanical Engineering of Sichuan Province, Sichuan University, Chengdu, China.

Temporomandibular joint (TMJ) is an important and complex joint in the human body. It is necessary to explore the biomechanical influence on the TMJs caused by different mandibular deformities. The maxillofacial models from 34 subjects were built to analyze the maximum and minimum principal stresses of the TMJs in the control group and three test groups. Read More

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Electromyographic changes in masseter and sternocleidomastoid muscles can be applied to diagnose of temporomandibular disorders: An observational study.

Integr Med Res 2021 Dec 16;10(4):100732. Epub 2021 May 16.

Korea Institute of Oriental Medicine, Daejeon, Republic of Korea.

Background: The diagnosis of temporomandibular disorders (TMDs) is an important part of the functional cerebrospinal technique (FCST). In addition, surface electromyography (sEMG) is an important candidate for diagnosing TMD. In FCST, despite the importance of the cranio-cervical-mandibular system, few sEMG parameters consider TMDs. Read More

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December 2021

Clinical characteristics of temporomandibular disorders presenting posterior open bite - A report of 12 cases.

J Dent Sci 2021 Jul 6;16(3):861-867. Epub 2021 Jan 6.

Department of Oral Medicine and Oral Diagnosis, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea.

Background/purpose: There is a paucity of comprehensive information about posterior open bite (POB) in patients with temporomandibular disorders (TMD) because of its rare prevalence. The purpose of this study was to investigate the etiologies, clinical characteristics, and treatment outcomes of patients with TMD presenting POB.

Materials And Methods: This study includes a careful review of medical records and imaging findings of 12 patients with TMD (seven men and five women, 50. Read More

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Central Sensitivity and Fibromyalgia.

Intern Med J 2021 Jun 17. Epub 2021 Jun 17.

Department of Medicine, Monash University, Melbourne, Australia.

Fibromyalgia presents with symptoms of widespread pain, fatigue, sleeping and cognitive disturbances as well as other somatic symptoms. It often overlaps with other conditions termed 'central sensitivity syndromes' such as irritable bowel syndrome, chronic fatigue syndrome and temporomandibular disorder. Central sensitisation, mediated by amplified processing in the central nervous system, has been identified as the key pathogenic mechanism in these disorders. Read More

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Vertical Dimension of Occlusion: A comparative study between Anthropometric and Knebelman's craniometric methods.

Acta Odontol Latinoam 2021 Apr;34(1):43-49

Universidad Católica de Cuenca, Facultad de Odontología, Azogues, Ecuador.

The masticatory system changes as time passes. The vertical dimension of occlusion (VDO) undergoes alterations due to temporomandibular joint disorders which in turn may be caused by related muscle modifications or pathological tooth wear. There are many methods to measure VDO. Read More

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Temporomandibular disorders in an adult population in northern Norway: A cross-sectional study.

Clin Exp Dent Res 2021 Jun 16. Epub 2021 Jun 16.

The Public Dental Health Service Competence Centre of Northern Norway, Tromsø, Norway.

Objectives: The aim of the study was to assess the prevalence of symptoms indicative of temporomandibular disorders (TMD) in an adult population in Troms County in Northern Norway, as well as the associations between TMD and socio-demographic factors, dental status, self-reported general, and oral health as well as oral health related quality of life (OHQoL).

Methods: Data were collected from a structured questionnaire and a clinical examination of a random sample of almost 2000 adults, 20-79-year-old, in Troms County in Northern Norway.

Results: Women had a higher prevalence of all self-reported and clinical signs of pain and dysfunction in the temporomandibular complex compared to men. Read More

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Reduction of headache intensity and frequency with maxillary stabilization splint therapy in patients with temporomandibular disorders-headache comorbidity: a systematic review and meta-analysis.

J Dent Anesth Pain Med 2021 Jun 1;21(3):183-205. Epub 2021 Jun 1.

Division of Dental Public Health and Pediatric Dentistry, Herman Ostrow School of Dentistry of University of Southern California, Los Angeles, California, USA.

This systematic review and meta-analysis aimed to analyze the effectiveness of maxillary stabilization splint (SS) therapy to reduce headache (HA) intensity and HA frequency in patients with temporomandibular disorders (TMD)-HA comorbidity. Randomized controlled trials (RCTs) using full-arch coverage, hard resin, and maxillary SS therapy were included. Electronic databases, including Cochrane Library, MEDLINE through PubMed, Web of Science, and EMBASE, were searched. Read More

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Validation of the Temporomandibular Disorder Pain Screener in a Specialized Headache Center.

J Oral Facial Pain Headache 2021 Spring;35(2):150-156

Aims: To investigate the sensitivity and specificity of the TMD pain screener in a headache population.

Methods: A cross-sectional study was conducted at the Danish Headache Center (DHC). Patients were included if they had primary or secondary headache, trigeminal neuralgia, or facial pain. Read More

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Headache Attributed to Temporomandibular Disorders: Axis I and II Findings According to the Diagnostic Criteria for Temporomandibular Disorders.

J Oral Facial Pain Headache 2021 Spring;35(2):119-128

Aims: To analyze Axis I and II findings of patients diagnosed as having painful temporomandibular disorder (TMD) with headache attributed to TMD (HAattrTMD) in order to assess whether HAattrTMD is associated with a specific Axis I and II profile suggestive of the central sensitization process.

Methods: This retrospective study included 220 patients with painful TMD divided into those with (n = 60) and those without (n = 160) HAattrTMD, and the patients were compared for Axis I and II results according to the Diagnostic Criteria for TMD (DC/TMD). A P value < . Read More

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Temporomandibular Joint Arthrocentesis in Patients with Degenerative Joint Disease: A 10- to 22-year Follow-up.

J Oral Facial Pain Headache 2021 Spring;35(2):113-118

Aims: To report the effectiveness of temporomandibular joint (TMJ) arthrocentesis with viscosupplementation for degenerative joint disease (DJD) over a long-term (ie, 10-22 years) follow-up.

Methods: A total of 103 patients aged between 30 and 91 years (13 men and 90 women; mean age 63.7 years) who received a cycle of five arthrocentesis sessions with HA viscosupplementation to manage their symptoms related to TMJ DJD during the time period from 1998 to 2010 were recalled for clinical evaluation. Read More

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Association of Hormonal Contraceptive Use with Headache and Temporomandibular Pain: The OPPERA Study.

J Oral Facial Pain Headache 2021 Spring;35(2):105-112

Aims: To determine the relationship between hormonal contraceptive (HC) use and painful symptoms, particularly those associated with headache and painful temporomandibular disorders (TMD).

Methods: Data from the Orofacial Pain: Prospective Evaluation and Risk Assessment (OPPERA) prospective cohort study were used. During the 2. Read More

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An investigation of biomechanics, muscle performance, and disability level of craniocervical region of individuals with temporomandibular disorder.

Cranio 2021 Jun 15:1-11. Epub 2021 Jun 15.

Department of Physical Medicine & Rehabilitation, Ankara Yildirim Beyazit University Medical School, Ankara, Turkey.

Objective: To investigate biomechanics, muscle performance, and disability of the craniocervical region in temporomandibular disorder (TMD) patients and compare them with controls.

Methods: Craniocervical posture was evaluated using lateral photography and radiography. Range of motion, muscle performance, disability, and TMD severity were assessed using an inclinometer, Functional Strength Testing of Cervical Spine, Neck Disability Index, and Fonseca Anamnestic Index, respectively. Read More

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Integrative Medicine: Manual Therapy.

FP Essent 2021 Jun;505:11-17

F. Edward Hébert School of Medicine at the Uniformed Services University of the Health Sciences, 4301 Jones Bridge Road, Bethesda, MD 20814.

Manual therapy, or manipulative therapy, is performed primarily by osteopathic physicians, chiropractors, and physical therapists to relieve pain and improve function. As safe prescribing of opioids has become a concern and nondrug therapies for pain management are used more widely, manual therapy has become an attractive treatment option for many patients. A variety of techniques are used, including myofascial release, strain-counterstrain, muscle energy, high velocity/low amplitude, Still, and others. Read More

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Alloplastic Temporomandibular Joint Replacement in Patients With Systemic Inflammatory Arthritis and Connective Tissue Disorders.

J Oral Maxillofac Surg 2021 May 8. Epub 2021 May 8.

Assistant Professor, University of Toronto Department of Oral and Maxillofacial Surgery; Co-founder, Sinai Health System Centre for Excellence in TMJ Surgery; Co-director, University of Toronto Fellow ship Program in Advanced TMJ and Orthognathic Surgery.

Purpose: We present a retrospective study to report the outcomes of total temporomandibular joint (TMJ TJR) replacement with alloplastic devices in patients suffering from systemic inflammatory arthropathies.

Methods: A total of 39 patients with a diagnosis of rheumatoid arthritis (RA), ankylosing spondylitis (AS), psoriatic arthritis (PA), juvenile idiopathic rheumatoid arthritis (JIA), or systemic lupus, underwent alloplastic total joint replacement(s) (TJR) from 1999 to 2019. Maximal interincisal opening (in mm) was recorded before surgery (T0), at 1-year post-surgery (T1) and at last follow-up (T2). Read More

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Synovial entrapment in alloplastic temporomandibular joint replacement.

Int J Oral Maxillofac Surg 2021 Jun 7. Epub 2021 Jun 7.

Instituto Português da Face, Lisboa, Portugal.

Complications of alloplastic temporomandibular joint (TMJ) prostheses can lead to stress and anxiety for the patient and the surgical team, and prosthesis substitution is sometimes required. The aim of this case report is to describe the surgical finding of synovial entrapment with interposed fibrosis in a postoperative alloplastic TMJ revision, managed effectively with adequate surgical debridement. The authors believe that synovial entrapment needs to be considered as a possible postoperative complication of total joint replacement when no clear symptoms of infection, metal hypersensitivity, osteolysis, or heterotopic bone formation are present. Read More

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[Clinical study of modified posterior dental splint in the treatment of anterior disk displacement without reduction of the temporomandibular joint].

Shanghai Kou Qiang Yi Xue 2021 Apr;30(2):210-213

Department of Temporomandibular Joint Disorders, Key Laboratory of Oral Medicine, Guangzhou Institute of Oral Disease, Stomatology Hospital of Guangzhou Medical University. Guangzhou 510140, Guangdong Province, China.

Purpose: To investigate the clinical effect of modified posterior dental splint in the treatment of anterior disk displacement without reduction of the temporomandibular joint (TMJ).

Methods: Eight-nine patients with anterior disk displacement without reduction of the TMJ who were treated in Stomatology Hospital of Guangzhou Medical University from October 2016 to October 2017 were selected in the study. 47 patients in the first group were treated by modified posterior dental splint, while 42 patients in the second group were treated by stabilization splint. Read More

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[Control study of forward head posture between patients with temporomandibular disorders and healthy people].

Shanghai Kou Qiang Yi Xue 2021 Apr;30(2):173-176

Department of Rehabilitation Medicine, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine. Shanghai 200011, China.

Purpose: To investigate the difference of forward head posture between patients with temporomandibular disorders(TMD) and healthy people.

Methods: Ninety-one TMD patients (18 males and 73 females) were recruited from the Department of Rehabilitation; Meanwhile, eighty-three healthy participants(20 males and 63 females)were recruited. A digital camera was used to capture images of the sagittal plane of the head and neck and upper thorax. Read More

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Smiling, Yawning, Jaw Functional Limitations and Oral Behaviors With Respect to General Health Status in Patients With Temporomandibular Disorder-Myofascial Pain With Referral.

Front Neurol 2021 24;12:646293. Epub 2021 May 24.

Department of Dental Techniques, Medical University of Bialystok, Białystok, Poland.

The temporomandibular joint is the one of the most important joints in the human body. It enables numerous orofacial functions such as mastication, swallowing, breathing, speech, emotional communication, and facial expressions. The aim of the study was to evaluate the prevalence of jaw functional limitations and oral behaviors with respect to general health status in patients with temporomandibular joint disorders-myofascial pain with referral. Read More

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Botulinum toxin type A and acupuncture for masticatory myofascial pain: a randomized clinical trial.

J Appl Oral Sci 2021 4;29:e20201035. Epub 2021 Jun 4.

Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba, Departamento de Prótese e Periodontia, Piracicaba, SP, Brasil.

Background: BoNT-A has been widely used for TMD therapy. However, the potential benefits compared to dry needling techniques are not clear.

Objective: this study aimed to compare the immediate effects of botulinum toxin type A (BoNT-A) injections and Acupuncture in myofascial temporomandibular disorders (TMD) patients. Read More

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Effects of acute mental stress on conditioned pain modulation in temporomandibular disorders patients and healthy individuals.

J Appl Oral Sci 2021 4;29:e20200952. Epub 2021 Jun 4.

Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Prótese e Periodontia, Bauru, Brasil.

Background: Stress is a contributing factor to painful temporomandibular disorders (TMD). Nevertheless, the underpinnings of this relationship are not fully understood.

Objective: To investigate the effects of acute mental stress on conditioned pain modulation (CPM) in TMD patients compared with healthy individuals. Read More

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Effects of photobiomodulation associated with orofacial myofactional therapy on temporomandibular joint dysfunction.

Codas 2021 4;33(6):e20200193. Epub 2021 Jun 4.

Programa de Pós-graduação em Saúde da Comunicação Humana, Universidade Federal de Pernambuco - UFPE - Recife (PE), Brasil.

Purpose: To investigate the influence of photobiomodulation associated with orofacial myofunctional therapy (OMT) in patients with temporomandibular muscle disorders (TMD).

Methods: Randomized, blinded trial clinical study with a sample of eleven women with muscle TMD divided into two groups. The experimental group (EG) consisted of five women submitted to orofacial myofunctional therapy associated with photobiomodulation, and the control group (CG) consisted of six women submitted to orofacial myofunctional therapy associated with inactive photobiomodulation (placebo). Read More

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Low-level laser therapy in temporomandibular joint disorders: a systematic review.

J Med Life 2021 Mar-Apr;14(2):148-164

Department of Electrical Engineering, Jamia Millia Islamia, New Delhi, India.

Temporomandibular joint disorders (TMDs) encompass a wide array of ailments affecting the temporomandibular joint (TMJ), muscles of mastication, and the allied structural framework. Myofascial pain, internal derangement of the joint, and degenerative joint diseases constitute the majority of TMDs. TMDs usually have a multifactorial etiology, and treatment modalities range from conservative therapies to surgical interventions. Read More

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Senolytics alleviate the degenerative disorders of temporomandibular joint in old age.

Aging Cell 2021 Jun 8:e13394. Epub 2021 Jun 8.

UConn Center on Aging, UConn Health, Farmington, CT, USA.

Aging is one of the major risk factors for degenerative joint disorders, including those involving the temporomandibular joint (TMJ). TMJ degeneration occurs primarily in the population over 65, significantly increasing the risk of joint discomfort, restricted joint mobility, and reduced quality of life. Unfortunately, there is currently no effective mechanism-based treatment available in the clinic to alleviate TMJ degeneration with aging. Read More

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