scholarly journals Secondary malocclusions due to morphological changes in temporomandibular joint and disorders of masticatory muscles

2018 ◽  
Vol 10 (2) ◽  
pp. 123-128
Author(s):  
Taihiko Yamaguchi
Keyword(s):  
Temporomandibular Joint ◽  
Morphological Changes ◽  
Masticatory Muscles

scholarly journals Changes in Morphometric Indicators of Blood Vessels of Masticatory Muscles in Simulation of Diabetic Angiopathy in Rats

2021 ◽  
pp. 60-67
Author(s):  
M.S. Hnatiuk ◽  
L.V. Rubas ◽  
L.V. Tatarchuk ◽  
O.B. Yasinovskyi
Keyword(s):  
Blood Vessels ◽  
Temporomandibular Joint ◽  
Blood Glucose Concentration ◽  
Morphological Changes ◽  
White Male ◽  
Joint Damage ◽  
Masticatory Muscles ◽  
Male Rats ◽  
Outer Diameter ◽  
Diabetic Angiopathy

Summary. Relevance. Diabetic joint damage is common in the clinic. The blood vessels of the masticatory muscles that affect the morphogenesis of diabetic arthropathy of the temporomandibular joint remain poorly studied in this pathology. Objective: to study the features of remodeling of blood vessels of the masticatory muscles of the temporomandibular joint in experimental hyperglycemia by quantitative morphological methods. Materials and Methods. The study material was 45 laboratory mature white male rats, which were divided into 3 groups. The 1st group consisted of 15 intact apparently healthy animals, the 2nd included 15 rats with one-month diabetic angiopathy, and the 3rd had 15 rats with two-month specified pathology. Diabetes mellitus was simulated by a single intraperitoneal injection of streptozotocin from Sigma at a dose of 50 mg/kg. Euthanasia of animals was performed by bloodletting under thiopental anesthesia one and two months after the start of the experiment. The blood glucose concentration was determined. Histological micropreparations were made from the temporomandibular joint and the temporal and external pterygoid muscles. Morphometric measurements of small caliber arteries (outer diameter 26-50 μm), veins and microvessels of the hemomicrocirculatory tract were performed on muscle micropreparations; relative volumes of damaged synoviocytes and chondrocytes were determined on micropreparations of joints. Quantitative indicators were processed statistically. Results and Conclusions. It was revealed that the gleam of arteries considerably decreases, their wall thickens, and endotheliocytes are damaged in the studied muscles with the modeled pathology. Venous vessels are dilated, full-blooded with a reduced wall thickness. The most pronounced changes in these experimental conditions are the structure of microvessels, which is characterized by narrowing of arterioles, precapillary arterioles and hemocapillaries, pronounced expansion of postcapillary venules and venules. Plethora, stasis, thrombosis, irregularity of the lumen, sacculation, and varicose expansions were noted in venous microvessels. Venous fullness led to hypoxia, disorders of trophism and metabolism, dystrophy, necrobiosis of muscle fibers and stromal structures, foci of infiltration and sclerosis. It was revealed that morphological changes in the vascular bed of the masticatory muscles affect the morphogenesis of diabetic arthropathy of the temporomandibular joint.

scholarly journals Morphological changes in temporomandibular joint dysfunction and effectiveness of different treatment methods

2020 ◽  
Vol 14 (2) ◽  
pp. 102-110
Author(s):  
Fatma Duman ◽  
Aynur Emine Çiçekçibaşı ◽  
Nesrin Atçı ◽  
Fatma Öztürk ◽  
Bircan Yücekaya ◽  
...  
Keyword(s):  
Temporomandibular Joint ◽  
Morphological Changes ◽  
Masticatory Muscles ◽  
Control Group ◽  
Dry Needling ◽  
Temporomandibular Joint Dysfunction ◽  
Anatomical Structures ◽  
Treatment Methods ◽  
Mandibular Fossa ◽  
Group B

Objectives: Temporomandibular joint dysfunction (TMD) results in changes in anatomical structures. The aim of this study was to examine the morphological changes using magnetic resonance imaging (MRI) and evaluate the effectiveness of different treatment methods in patients with TMD. Methods: 34 TMD patients (18–62 years of age) were randomly divided into two treatment groups. Group A (n=18) was subjected to dry needling (DN) and mobilization for 10 sessions, Group B (n=16) was instructed to use occlusal splint with home exercises for one month. The control group included MRIs of 17 healthy adults that were randomly selected from the archives of Radiology Department of Mustafa Kemal University. The length and width of the masseter, lateral and medial pterygoid muscles and the depth of the mandibular fossa were measured and mandibular condyle types were recorded. Range of motion of each temporomandibular joint was evaluated in pre- and post-treatment periods to test the effectiveness of the treatment methods. Results: The size of the masticatory muscles in TMD group was significantly smaller than the control group (p<0.05). The depth of the mandibular fossa was significantly shallower in the TMD group (p<0.05). The most commonly encountered condylar shape was convex in the TMD group (63.6%), but flat (58.8%) in the control group. No statistically significant relationship was observed between condyle type and fossa depth (p>0.05). However, the fossa depth showed a significant correlation with muscle size (p<0.05) and this correlation decreased with dysfunction. Dry needling and mobilization significantly decreased pain and increased mandibular movements (p<0.05); however, there was no significant change for Group B. Conclusion: The anatomical structures associated with the temporomandibular joint seems to be affected in patients with TMD. We suggest that the limited movement of the temporomandibular joint may cause atrophy of the masticatory muscles, affecting the range of motion of the joint. Dry needling and mobilization techniques might be a more effective alternative than occlusal splint in the treatment of TMD.

scholarly journals Temporomandibular Disorders and Bruxism Prevalence in a Portuguese Sample

2021 ◽  
Vol 5 (1) ◽  
pp. 37
Author(s):  
João Belo ◽  
André Almeida ◽  
Paula Moleirinho-Alves ◽  
Catarina Godinho
Keyword(s):  
Temporomandibular Joint ◽  
Temporomandibular Disorders ◽  
Temporomandibular Disorder ◽  
Masticatory Muscles ◽  
Diagnostic Aspects ◽  
Relevant Role

Temporomandibular disorder (TMD) encompasses a set of disorders involving the masticatory muscles, the temporomandibular joint and associated structures. It is a complex biopsychosocial disorder with several triggering, predisposing and perpetuating factors. In the etiology of TMD, oral parafunctions, namely bruxism, play a relevant role. The study of bruxism is complicated by some taxonomic and diagnostic aspects that have prevented achieving an acceptable standardization of diagnosis. The aim of this study was to analyze the prevalence of temporomandibular disorders and bruxism in a Portuguese sample.

scholarly journals Temporomandibular joint dysfunction in Parkinson's Disease: an integrative literature review

Revista CEFAC ◽  
2017 ◽  
Vol 19 (5) ◽  
pp. 702-711 ◽  
Author(s):  
Taysa Vannoska de Almeida Silva ◽  
Maria das Graças Wanderley de Sales Coriolano ◽  
Carla Cabral dos Santos Accioly Lins
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Temporomandibular Joint ◽  
Myofascial Pain ◽  
Mouth Opening ◽  
Signs And Symptoms ◽  
Masticatory Muscles ◽  
Therapeutic Interventions ◽  
Temporomandibular Joint Dysfunction ◽  
Language Restriction

ABSTRACT Temporomandibular joint dysfunction is a set of disorders involving the masticatory muscles, temporomandibular joint and associated structures. It is known that the progression of motor symptoms in Parkinson's disease is an indication that these people are more prone to the development of this dysfunction. Thus, this study aims to investigate the signs and symptoms of temporomandibular dysfunction in people with Parkinson's disease. The search was performed in the databases: MEDLINE/ PubMed, LILACs, CINAHL, SCOPUS, Web of Science and PEDro, without timing or language restriction. Specific descriptors were used for each database and keywords, evaluated by the instruments: Critical Appraisal Skill Program and Agency for Health care and Research and Quality. A total of 4,209 articles were found but only 5 were included. After critical analysis of the methodology of the articles, one did not reach the minimum score required by the evaluation instruments, thus, it was excluded. The selected articles addressed, as signs and symptoms of temporomandibular joint dysfunction, the following: myofascial pain, bruxism, limitation of mouth opening, dislocation of the articular disc and asymmetry in the distribution of occlusal contacts. Further studies are needed in order to determine the relationship between cause and effect of the analyzed variables, so as to contribute to more specific and effective therapeutic interventions.

scholarly journals Dental health of civil aviation flight personnel

2021 ◽  
Vol 25 (1) ◽  
pp. 17-22
Author(s):  
Andrey K. Iordanishvili
Keyword(s):  
Temporomandibular Joint ◽  
Dental Health ◽  
Masticatory Muscles ◽  
Temporomandibular Joint Disorders ◽  
The Body ◽  
Civil Aviation ◽  
Study Group ◽  
Flight Duration ◽  
Dental Diseases ◽  
Masticatory Apparatus

BACKGROUND: Preservation and strengthening of the health of civil aviation flight personnel is an extremely urgent problem and is associated with ensuring flight safety. AIM: This study aimed to determine the structure and analyze the organs and tissues of the masticatory apparatus among civil aviation flight personnel. MATERIALS AND METHODS: To determine the incidence and intensity of main dental diseases and the morbidity structure of organs and tissues of the masticatory apparatus in civil aviation pilots, an in-depth examination was carried out in 120 men aged 2545 years (study group 1) working on various modern passenger and transport aircrafts. The duration of flight operations ranged from 2 to 17 years, with a total flight duration of 140 to 5580 h. The comparison group consisted of 146 men (aged 2545 years) of non-flying specialties (study group 2). The generally accepted methods for assessing the prevalence and intensity of the course of major dental diseases were used. RESULTS: The incidence and intensity of dental disorders, periodontal disease, temporomandibular joint disorders, and parafunctions of the masticatory muscles were defined. The incidence and intensity of major dental diseases among civil aviation flight personnel were clearly directly proportional to their flight time (r=0.547) and duration of work in civil aviation (r=0.482) but to a lesser extent to their age (r=0.416). CONCLUSIONS: Non-carious lesions of the teeth, inflammatory and dystrophic diseases of the periodontal and oral mucosa, painful dysfunction of the temporomandibular joint, and bruxism are more common among civil aviation flight personnel than among non-flying personnel, which is due to the unfavorable effect of air flight factors on organs and tissues of the mastication apparatus and the body of the pilots as a whole.

scholarly journals Experience of using an integrated approach in the diagnosis of temporomandibular joint dysfunction

2022 ◽  
pp. 98-100
Author(s):  
A. A. Sultanov ◽  
Y. Y. Pervov ◽  
A. K. Yatsenko ◽  
M. A. Sultanova ◽  
D. O. Drozdova
Keyword(s):  
Physical Examination ◽  
Temporomandibular Joint ◽  
Orthodontic Treatment ◽  
Clinical Case ◽  
Mouth Opening ◽  
Integrated Approach ◽  
Masticatory Muscles ◽  
Temporomandibular Joint Dysfunction ◽  
The Right ◽  
Masseter Muscles

The article presents a clinical case of the diagnostics and treatment of the temporomandibular joint dysfunction (TMJ) in patient after orthodontic treatment. The hypertonia of masticatory muscles, limit of mouth opening and deviation of the jawbone to the right were observed during physical examination. Adhesion of the disk to the articular tubercle of the right temporal bone was detected on MRI. Hyperrotation of the articular head and the deviation of the jawbone to the right were observed on the charts during axiography. Disappearing of the feeling of heaviness in the right TMJ, free mouth opening, absence of deviation symptom, and the reduction of the rigidity of the masseter muscles were observed on the basis of diagnostic examinations after treatment. Presented clinical experience lets us make a conclusion that it is necessary to prescribe taking axiography and MRI during diagnosing and treating temporomandibular joint dysfunction.

The effectiveness of orthodontic and osteopathic correction in patients with dental anomalies and musculoskeletal dysfunction of the temporomandibular joint in the presence of concomitant somatic dysfunctions and without it

2021 ◽  
pp. 63-74
Author(s):  
E. V. Basieva ◽  
Yu. A. Milutka ◽  
N. A. Tarasov ◽  
A. V. Silin ◽  
D. E. Mokhov
Keyword(s):  
Temporomandibular Joint ◽  
Musculoskeletal System ◽  
Orthodontic Treatment ◽  
Masticatory Muscles ◽  
The Body ◽  
Complete Disappearance ◽  
Dental Anomalies ◽  
Osteopathic Treatment ◽  
Group 3 ◽  
Group 2

Introduction. The influence of the dental apparatus on the balance of the body in an upright position has been widely discussed in the literature for several decades. Examination of the patient taking into account his postural balance makes it possible to clarify the reasons for the low effectiveness of pain syndromes treatment of the craniocervical region caused by malocclusion, as well as ineffective correction of musculoskeletal dysfunction of the temporomandibular joint (MSD TMJ) associated with posture disorders.The aim of the study is to evaluate the effectiveness of treatment of patients with dental anomalies and musculoskeletal dysfunctions of the temporomandibular joint and concomitant somatic dysfunctions (if any) by methods of orthodontic and osteopathic correction.Materials and methods. The study involved 102 patients aged from 18 to 45 years with TMJ. All patients underwent orthodontic and osteopathic examination. 3 groups of patients were formed: № 1 — exclusively with dental anomalies TMJ (occlusive dysfunction), who received only orthodontic treatment, № 2 with concomitant somatic (extra-occlusive) dysfunctions, who received only orthodontic treatment, and №3 with concomitant somatic (extra-occlusive) dysfunctions, who received both orthodontic and osteopathic treatment. Orthodontic treatment of musculoskeletal dysfunction of the TMJ consisted of the occlusive kappa manufacturing. Osteopathic correction was carried out individually, taking into account the identified somatic dysfunctions, on average 3 sessions. Patients also received drug therapy, and they performed myohymnastics for the masticatory muscles. The clinical dysfunction index (Helkimo M.) was used to control the elimination dynamics of the TMJ's musculoskeletal dysfunction symptoms. The assessment of the pain dynamics in the TMJ was carried out by a visual-analog scale (VAS). The evaluation of the osteopathic treatment effectiveness was carried out on the basis of computer stabilometry data and osteopathic examination data. A stabilometric study was performed on the «ST-150» («Biomera») stabiloplatform in the Romberg sample (European foot installation) with open and closed eyes in two positions of the lower jaw: 1) in a state of physiological rest (tooth rows are separated); 2) in the kappa with closed tooth rows.Results. The MSD TMJ symptoms were eliminated 10 weeks after the start of treatment in all (100 %) patients of group № 1 and group № 3. Among the patients in group № 2, only 12,1 % of patients had complete absence of MSD TMJ symptoms, while all patients in this group had a statistically significant decrease in the clinical index of Helkimo dysfunction. In one third of the group № 2 patients on the 12th week of orthodontic treatment, headaches and/or pains in other parts of the musculoskeletal system (neck, back, shoulders, arms) prevailed among complaints and which were previously indicated in the anamnesis. This occurred after the elimination of the MSD TMJ symptoms. The absolute majority of patients in group № 3 (97,1 %) noted the complete disappearance of headaches and/or pains in other parts of the musculoskeletal system (neck, back, shoulders, arms). Also, in patients of this group, stabilometric indicators were normalized in a state of physiological rest and in the kappa.Conclusion. Patients with somatic dysfunctions need complex treatment with the participation of an osteopath and a dentist. When assessing the osteopathic status of a patient, it is important to determine whether the patient has only occlusive dysfunctions or there are also extra-occlusive ones. Additional osteopathic correction is recommended for patients with extraocclusive dysfunctions in order to achieve treatment results comparable in effectiveness and timing.

Considering Depression and Anxiety as Risk Factors for Temporomandibular Joint Disorder

2020 ◽  
pp. 152-159
Author(s):  
Stefan Kindler ◽  
Marike Bredow-Zeden
Keyword(s):  
Risk Factors ◽  
Chronic Pain ◽  
Temporomandibular Joint ◽  
Facial Pain ◽  
Masticatory Muscles ◽  
Depression And Anxiety ◽  
Temporomandibular Joint Disorder ◽  
Social Emotional ◽  
Symptoms Of Depression ◽  
Joint Disorder

Temporomandibular joint disorder (TMD) is a painful functional disorder of the temporomandibular joint, masticatory muscles, and associated musculoskeletal structures of the head and neck. TMD is a type of chronic pain and is widely used as a model for chronic pain. The etiology of TMD pain is multifactorial. Biological, behavioral, environmental, social, emotional, and cognitive factors can contribute to TMD. TMD can manifest with musculoskeletal facial pain complaints and with different forms of jaw dysfunction. Biobehavioral studies suggest an association between TMD pain and coexisting psychopathology, including depression and anxiety. This chapter presents practical clinical recommendations on how to treat patients with symptoms of depression, anxiety, and TMD pain. The authors underline the importance of considering depression and anxiety as risk factors for TMD.

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