scholarly journals Assessing temporomandibular disorders: Mouthpiece design considerations

2018 ◽  
Vol 75 (8) ◽  
pp. 756-763
Author(s):  
Dino Bukovic ◽  
Igor Glavicic ◽  
Goran Dimitric ◽  
Miroslav Smajic ◽  
Bozana Radanovic ◽  
...  
Keyword(s):  
Temporomandibular Joint ◽  
Soft Tissues ◽  
Masticatory Muscles ◽  
Muscle Stiffness ◽  
Average Score ◽  
Posterior Teeth ◽  
Scuba Divers ◽  
Orofacial Region ◽  
Jaw Joint ◽  
Oral Screen

Background/Aim. Scuba diving is one of the sports with the fastest growing popularity. Nowadays doctors of dental medicine meet divers-patients in their offices more often. Treatment of these patients has some specific features that are related to difficulties in the temporomandibular joint, masticatory muscles and soft tissues of the oral cavity. A set of those complaints represent a condition called ?diver's mouth syndrome?. Most scuba divers complain of temporomandibular joint and the masticatory muscles pain; inadequate mouthpieces can exacerbate temporomandibular dysfunction (TMD) even when its symptoms are not present in everyday life. The aim of this research was to find a decent substitute for a fully customised mouthpiece, that are not present at our market, to discover the qualities of a good mouthpiece and establish prevalence of TMD among divers. Methods. This study included 30 scuba divers. Scuba divers filled out the questionnaire before diving, then dived twice with each of the 3 different commercial mouthpieces provided for this research (Mares Universal, Seac sub, Mares LiquidSkin (Universal Mares, Seac sub, Mares LiquidSkin). After diving, they filled out the second part of the questionnaire and so they performed an assessment of the mouthpiece and gave insight into the prevalence of TMD symptoms caused by using the mouthpiece. Results. According to the average score of satisfaction (the least present symptoms such as pain, fatigue, and numbness of the masticatory muscles and the jaw joint), this research proved Mares LiquidSkin mouthpieces to be the best out of the 3 commercial mouthpieces. For its use, average satisfaction score among participants was 7.07 (out of 10) and none of the divers reported jaw and muscle stiffness during and after the dive with this mouthpiece. The smallest percentage of participants reported pain in the orofacial region and discomfort while swallowing when used it in comparison with other mouthpieces. The anatomy and material of the mouthpieces turned out to be an extremely important factor. Conclusion. Several factors contribute to a good mouthpiece design; the choice of material, its elasticity and softness, the thickness and length of the interdental bite platform and the width of the oral screen that is inserted into the vestibule. The preferred material should be soft silicone. The interdental bite platforms should support the posterior teeth and the oral screen should fit the jaws and not be too wide.

scholarly journals Temporomandibular dysfunction in patients with a history of stroke.

2020 ◽  
pp. 1-5
Author(s):  
Mariana Altvater Ramos ◽  
Beatriz Garcia Moura ◽  
Camila Costa Araujo ◽  
Tiago Tsunoda Del Antonio ◽  
Joyce Karla Machado da Silva
Keyword(s):  
Temporomandibular Joint ◽  
Pain Threshold ◽  
Muscle Tone ◽  
Pressure Pain Threshold ◽  
Masticatory Muscles ◽  
Pressure Pain ◽  
Threshold Test ◽  
Joint Disorder ◽  
Orofacial Region ◽  
History Of

Background: The temporomandibular joint (TMJ) is certainly one of the most complex joints in the human body. The American Academy of Orofacial Pain defines temporomandibular joint disorder (TMD) as a set of disorders involving the masticatory muscles, the TMJ, and associated structures. It is pointed as the main cause of non-dental pain in the orofacial region, including head, face and related structures. The most common TMD symptoms involve joint, chewing and face pain. There may also be crackling when opening and closing the mouth, earache, tinnitus, dizziness, dislocations, limitation of movement and painful tenderness to palpation. Stroke causes sequelae in subjects that include motor disorders, speech or language disorders, and swallowing disorders. Approximately 50% of patients with hemiparesis after stroke are known to have facial control deficiency, weakened orofacial and mandibular functions. Objective: To evaluate patients with a history of stroke, seeking a possible relationship with TMD, the pain associated with this change, and the limitations of range of motion related to the presence of hemibody spasticity in patients post stroke. Methods: The sample consisted of 19 patients of both genders, aged 55 to 70 years, who had suffered stroke. It was used the RDC/TMD for TMD diagnosis, Pressure Pain Threshold test, Ashworth scale, and Sanny Fleximeter for cervical ROM evaluation, being the statistical analysis performed by the software Bioestat version 5.3. Results: TMD was diagnosed in 81.8% of the sample, and of these, 45.4% had a diagnosis of disc displacement with reduction. Conclusion: There was an increase in the muscle tone and the pressure pain threshold, and a decrease in cervical spine ROM, related to the affected side and diagnosed with this disorder, observing that the muscle alterations caused by stroke may be predisposing factors to patients, to the development of muscle TMD or even joint TMD.

scholarly journals Gerontostomatology: from science to clinical medicine (survey)

2020 ◽  
Vol 18 (3) ◽  
pp. 71-77
Author(s):  
A. K. Iordanishvili
Keyword(s):  
Temporomandibular Joint ◽  
Tooth Loss ◽  
Soft Tissues ◽  
Clinical Medicine ◽  
Inflammatory Diseases ◽  
Periodontal Diseases ◽  
Masticatory Muscles ◽  
Petersburg Institute ◽  
Hard Tissues ◽  
Dissertation Research

Aim of the study was, based on the analysis of dissertation research prepared in scientific laboratories and departments of the St. Petersburg Institute of Bioregulation and Gerontology, to present the contribution of the staff of this Institute to the development of modern gerontostomatology. Dissertation research carried out within the walls of the St. Petersburg Institute of Bioregulation and Gerontology in the field of gerontostomatology touched on the pathology of hard tissues and pulp of teeth, rehabilitation in case of tooth loss, periodontal diseases, oral mucosa, injuries and inflammatory diseases of the jaws and peri-maxillary soft tissues, as well as pathology temporomandibular joint and masticatory muscles in elderly and senile people.

Radiation Diagnostics in Treatment of Displacement of a Joint Disk of a Temp-Jaw Joint and Myofascial Disorders

2021 ◽  
Vol 66 (3) ◽  
pp. 29-34
Author(s):  
A. Ilyin ◽  
T. Fazylova ◽  
A. Dergilev ◽  
A. Sudarkina ◽  
E. Olesov ◽  
...  
Keyword(s):  
Botulinum Toxin ◽  
Temporomandibular Joint ◽  
Myofascial Pain ◽  
Masticatory Muscles ◽  
Articular Disc ◽  
Clinical Criteria ◽  
Lower Jaw ◽  
Treatment Measures ◽  
Jaw Joint ◽  
Pterygoid Muscles

Purpose: Determination of the volume and sequence of radiation studies in the treatment of patients with displacement of the articular disc of the temporomandibular joint (TMJ)and myofascial pain disorders. Material and methods: The study included 48 patients with displacement of the articular disc of the TMJ and myofascial pain disorders. Clinical criteria for articular displacement were confirmed by MRI and CBCT. Studies of the function of the masticatory muscles were carried out at the Synapsis electromyograph. All patients underwent complex treatment, including relaxation of the masticatory muscles and relief of pain using injections of botulinum toxin in the actual masticatory, temporal and lateral pterygoid muscles (LPM), followed by repositioning split therapy. For the introduction of muscle relaxant in LPM, we have developed and applied external periarticular injection access to LPM. The method is based on reaching the zone of joint attachment of the upper and lower heads of the LPM with MRI navigation. Surveillance continued for up to 12 months with MRI monitoring of the position of the articular disc. Results: The stages of treatment of SJS of the TMJ with control use of MRI and CT, as well as a method for the administration of botulinum toxin under MRI navigation, have been developed. The first stage included CT and MRI of the temporomandibular joint, the second stage – injections of botulinum toxin into the masticatory muscles using the developed periarticular access to the LPM with MRI navigation, as well as CBCT with a splint to control the new (established) position of the lower jaw; the third and fourth stages included continuation of the reduction splint therapy, correction of the splint, observation for 3-6 months with control CBCT after 6 months to assess the position of the mandible without splint. Achieved an increase in the posterior and upper temporomandibular joint distances and the correct position of the lower jaw. Conclusion: Performing radiation studies on time at certain stages of treatment, differing in their content and volume, provided a complete diagnosis, planning treatment measures and monitoring the results.

scholarly journals Effect of Prolonged Endodontic Treatment on Temporomandibular Joint and Masticatory Muscles

2018 ◽  
Vol 9 (1) ◽  
pp. 38-42
Author(s):  
Aisha Wali ◽  
Talha M Siddiqui ◽  
Fatima Siddiqui ◽  
Damiya Naireen
Keyword(s):  
Temporomandibular Joint ◽  
Root Canal ◽  
Temporomandibular Disorder ◽  
Masticatory Muscles ◽  
Endodontic Treatment ◽  
Posterior Teeth ◽  
Anterior Teeth ◽  
The Social ◽  
The Status ◽  
Masticatory Apparatus

ABSTRACT Aims and objectives The objective of the study is to assess the outcome of lengthy root canal sessions (more than 2 hours) on temporomandibular joint (TMJ) and its associated structures. Materials and methods Totally, 250 patients who had undergone root canal treatment that lasted for more than 2 hours were examined for the status of TMJ and masticatory muscles. The second part of the examination was performed after 1 week to check for any pain and tenderness. Data were analyzed using Statistical Package for the Social Sciences (SPSS). Results Results showed that patients of older age suffered from more pain postoperatively. Similarly, women experienced more pain than males. Those patients who were treated for their posterior teeth complained of more pain than those treated for anterior teeth. Conclusion Prolonged root canal sessions result in longer and wider opening of mouth for longer period of time, thus causing harm to TMJ and associated masticatory structures and may give rise to sign and symptoms of temporomandibular disorder (TMD). Clinical significance It is prudent to break treatment sessions into shorter appointments and let patients relax during the treatment to prevent any extra stress on the TMJ and associated masticatory apparatus. How to cite this article Siddiqui TM, Wali A, Siddiqui F, Naireen D. Effect of Prolonged Endodontic Treatment on Temporomandibular Joint and Masticatory Muscles. World J Dent 2018;9(1):38-42.

scholarly journals Non-invasive approach in the treatment of temporomandibular joint osteoarthritis

2020 ◽  
pp. 79-79
Author(s):  
Andjela Milojevic-Samanovic ◽  
Dejan Zdravkovic ◽  
Stefan Velickovic ◽  
Milica Jovanovic ◽  
Marko Milosavljevic
Keyword(s):  
Temporomandibular Joint ◽  
Muscle Tension ◽  
Masticatory Muscles ◽  
Invasive Approach ◽  
Non Invasive ◽  
Temporomandibular Joint Osteoarthritis ◽  
Patient Reported ◽  
Orofacial Region ◽  
The Right ◽  
Bone Structures

Introduction. Temporomandibular dysfunction (TMD) is a set of disorders that involve the masticatory muscles, the temporomandibular joint (TMJ) and its associated structures. Osteoarthritis (OA), as one of the forms of TMD, leads to permanent changes in the bone structures of TMJ. These changes can be the cause of serious functional disorders of the TMJ. Case outline. This article describes a case of a 24-year-old female patient who sought help due to pain and swelling in the area of the right and left TMJ, accompanied by muscular tension, severe headaches, which did not respond to medication. ?fter establishing the diagnosis, we have applied a therapy in the treatment of the bilateral OA of TMJ, where we used non-invasive methods. Six months later, the patient reported the absence of pain, swelling, headache, and muscle tension in the orofacial region. Conclusion. There is no ?gold standard? for the management of ?? of ???. In our study, non-invasive therapy had a positive effect, where we achieved success in eliminating pain, increasing range of motion of the lower jaw, stopping the progression of the disease and advancing quality of life.

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 A Protocol for the Use of a Combined Microvascular Free Flap with Custom-Made 3D-Printed Total Temporomandibular Joint (TMJ) Prosthesis for Mandible Reconstruction in Children

2021 ◽  
Vol 11 (5) ◽  
pp. 2176
Author(s):  
Krzysztof Dowgierd ◽  
Rafal Pokrowiecki ◽  
Maciej Borowiec ◽  
Marcin Kozakiewicz ◽  
Dominika Smyczek ◽  
...  
Keyword(s):  
Temporomandibular Joint ◽  
Soft Tissues ◽  
Total Joint Replacement ◽  
Speech Development ◽  
Functional Requirements ◽  
Immediate Reconstruction ◽  
Congenital Deformities ◽  
Custom Made ◽  
Masticatory System

Extended postoperative mandibular reconstructions due to orofacial disease involving the temporomandibular joint (TMJ) in immature patients remain a challenge as a result of ongoing growth, which is usually affected by the disease and treatment. Current reconstructive techniques based fully on alloplastic total joint replacement fail to meet fully the anatomical and functional requirements for the masticatory system and speech development. Fourteen children aged 12.6 ± 2.6 with tumors or congenital deformities affecting the mandible and TMJ were included in the study. Radical surgical treatment according to our own protocol was performed through microvascular anastomotic flap reconstruction of the soft tissues and bones, together with total TMJ custom replacements. Follow-up lasted 2–6 years. During the follow-up, increases in the mandible body (13% growth) and ramus (12% growth) were observed, both of which were related (p < 0.001). This is the first report concerning the immediate reconstruction of the mandible with ramus and total TMJ in children and adolescents that combines a free vascularized graft and total individual prosthesis of the TMJ. The presented technique enabled optimal function of the TMJ, growth of the mandible, and further rehabilitation of the patients. The technique was demonstrated to be safe, reliable, and provide good functional and cosmetic outcomes.

Non-primate Lentiviral Vector Administration in the TMJ

2004 ◽  
Vol 83 (1) ◽  
pp. 65-70 ◽  
Author(s):  
S. Kyrkanides ◽  
P. Kambylafkas ◽  
J.H. Miller ◽  
R.H. Tallents
Keyword(s):  
Temporomandibular Joint ◽  
Reporter Gene ◽  
Soft Tissues ◽  
Lentiviral Vector ◽  
Retrograde Transport ◽  
Lentiviral Vectors ◽  
Treatment Method ◽  
Joint Space ◽  
Nerve Fibers ◽  
Temporomandibular Joint Disorders

Gene therapy is emerging as a novel treatment method for the management of temporomandibular joint disorders. The aim of this investigation was to study the effects of lentiviral vectors on the temporomandibular joint. Consequently, we injected into the articular joint space a defective feline immunodeficiency virus capable of infecting dividing as well as terminally differentiated cells with the reporter gene lacZ, the expression of which was studied by means of PCR, X-gal histochemistry, and β-galactosidase immunocytochemistry. Our results showed successful transduction of hard and soft tissues of the temporomandibular joint. Interestingly, a subset of primary sensory neurons of the ipsilateral trigeminal ganglion also stained positive for the reporter gene, presumably following uptake of the lentiviral vector by peripheral nerve fibers and retrograde transport to the nucleus. These findings suggest that lentiviral vectors can potentially serve as a platform for the transfer of anti-nociceptive genes for the management of temporomandibular joint pain.

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.

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