• Journal of Korean society of Dental Hygiene
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• v.17 no.4
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• pp.589-600
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• 2017

Objectives: This study aims to prove that stress directly or indirectly affects the jaw joint disorders and provide basic data for developing oral health promotion program. Methods: The study was conducted by distributing a questionnaire survey to more than 350 people from December 30, 2016 to January 7, 2017. Among them, 336 copies were collected and 314 copies were utilized eventually, except Section 314, for the final analysis. Regression analysis was performed to investigate the factors affecting temporomandibular joint disorders. Results: As a result, academic achievement and stress were found to affect the temporomandibular joint disorders. The higher the level of education and stress, the higher the subjective symptoms of jaw joint disorder. Conclusions: Because stress affects temporomandibular joint disorders, it is necessary to find out the cause of stress not only for professional treatment but also for solution of temporomandibular disorder. Thus, stress level must be conisdred as influential factors in developing a jaw joint disease prevention program.

• Imaging Science in Dentistry
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• v.46 no.2
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• pp.127-131
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• 2016

Purpose: This study was performed to compare the condylar position in patients with temporomandibular joint disorders (TMDs) and a normal group by using cone-beam computed tomography (CBCT). Materials and Methods: In the TMD group, 25 patients (5 men and 20 women) were randomly selected among the ones suffering from TMD according to the Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD). The control group consisted of 25 patients (8 men and 17 women) with normal temporomandibular joints (TMJs) who were referred to the radiology department in order to undergo CBCT scanning for implant treatment in the posterior maxilla. Linear measurements from the superior, anterior, and posterior joint spaces between the condyle and glenoid fossa were made through defined landmarks in the sagittal view. The inclination of articular eminence was also determined. Results: The mean anterior joint space was 2.3 mm in the normal group and 2.8 mm in the TMD group, respectively. The results showed that there was a significant correlation between the superior and posterior joint spaces in both the normal and TMD groups, but it was only in the TMD group that the correlation coefficient among the dimensions of anterior and superior spaces was significant. There was a significant correlation between the inclination of articular eminence and the size of the superior and posterior spaces in the normal group. Conclusion: The average dimension of the anterior joint space was different between the two groups. CBCT could be considered a useful diagnostic imaging modality for TMD patients.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• v.37 no.6
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• pp.510-514
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• 2011

An intracapsular and pericapsular infection of the temporomandibular joint (TMJ) is rare. The invasion of bacteria into the joint space can occur through several routes. Among them, hematogenous spread is most common. This report describes three cases of abscess formation in the TMJ (intracapsular and pericapsular infection). The patients were treated with supportive care and surgical intervention (incision and drainage) under hospitalization, and their symptoms had improved. Pain of the TMJ is a typical symptom of temporomandibular joint disorders (TMD). On the other hand, an infection of the TMJ can also cause pain on the affected side, and can be misdiagnosed as routine TMD. Therefore, the possibility of an infection of the TMJ cavity should be considered when treating TMD.

• The Journal of the Korean dental association
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• v.51 no.2
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• pp.74-83
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• 2013

In the management of temporomandibular joint(TMJ) disorders, dental practioner should conduct the reversible, conservative, and inexpensive treatment modalities prior to the irreversible and invasive treatment. That is to say, behavioral, pharmacologic, and physical therapy should be conducted firstly, and then the occlusal appliance therapy could be considered. If patients do not react to these conservative treatments, we have to consider surgical treatments. If the accurate diagnosis is confirmed by intimate history taking, clinical and imaging examinations, we can rehabilitate the normal TMJ function and relieve the clinical symptoms with only conservative treatments in most TMJ disorder cases.

• Journal of Oral Medicine and Pain
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• v.39 no.3
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• pp.100-106
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• 2014

Purpose: This study was performed to investigate the relationship between temporomandibular disorders (TMDs) and the asymmetry of the mandibular height. Methods: We compared 100 randomly selected TMD patients diagnosed by the research diagnostic criteria for TMD (RDC/TMD) Axis I with 100 non-TMD control subjects matched with the TMD patients in age and gender. The mandibular heights were measured on an orthopantomogram and the asymmetry index (AI) was calculated as previously described. Results: The absolute AI value of 4.37% turned out to be the least cut-off value defining asymmetry, which showed a significant difference in asymmetry incidence (p<0.01) between the TMD and control groups. The risk of TMD increased in the asymmetry group by 4.57 (odds ratio). The incidence of asymmetry was not related to age and gender in both of the TMD and control groups. When dividing the TMD group according to the RDC/TMD Axis I diagnosis, neither the incidence of muscle disorder nor disk displacement was related to the incidence of asymmetry. However, a higher incidence of asymmetry was observed in the subjects classified into the arthrosis/arthritis groups (p<0.01). Conclusions: Although it does not imply a direct cause-and-effect relationship, asymmetry resulting in more than 4.37% difference between mandibular heights may increase the risk of TMD and correlates positively to the incidence of arthritic change in the temporomandibular joint of TMD patients.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• v.28 no.5
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• pp.358-363
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• 2002

Purpose : Authors attempted to evaluate the effect on explanation of pathogenesis and stress management as the initial care of temporomandibular disorders. Materials and methods : The materials were 634 patients with temporomandibular disorder, who had been referred to our Department of Dentistry, Wonju Christian Hospital during recent 5 years. We examined about clinical aspects of temporomandibular disorders, such as, major signs of temporomandibular joint disorder, life environment and habits, radiological findings of temporomandibular joint and electromyography of masseter muscle. The patients were treated by explanation of TMJ pathogenesis and stress management. After that, the patient were evaluated about the effect in third week. Results : The result was more favorable (96.5% success rate) without intolerable signs of temporomandibular joint disorder. Conclusion : The explanation of TMJ pathogenesis and stress management were thought as the very effective care in management of patients with temporomandibular disorder.

• Journal of Korean Medicine Rehabilitation
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• v.34 no.1
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• pp.49-64
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• 2024

Objectives By bibliographically analyzing acupuncture treatment studies for temporomandibular disorders over the past 20 years, we found an overview of global trends and a new perspective on future research directions. Methods We searched on the Web of Science webpage through the formula (TS=[temporomandibular] OR TS=[craniomandibular] OR TS=[jaw]) AND (TS=[^*acupuncture] OR TS=[dry needl^*] OR TS=[warm needl^*] OR TS=[thread embed^*]) AND (PY=[2003-2022]). And it was analyzed by year, research field, academic journal, country, research institute, author, and keyword. Results 194 papers were searched, and 92 papers were finally selected. The number of papers published over the past 20 years has been on the rise. Research has been the most active in the field of Dentistry Oral Surgery Medicine. Brazil published the most papers. And by institution, Universidade de Sao Paulo published the most papers. Among the authors, Fernández-de-las-Peñas has published the most papers. In the analysis by keyword, the top five keywords were temporomandibular joint disorder, acupuncture, myofascial pain, pain and management. Conclusions This study will provide useful guidelines for setting the direction of research by referring to the research status and keyword analysis when conducting research on the acupuncture on temporomandibular disorder in the future.

• Physical Therapy Korea
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• v.7 no.1
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• pp.101-120
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• 2000

This paper offers an approach to physical therapy and rehabilitation procedure for the temporomandibular joint dysfunction (TMD). Forms of physical therapy are used in the treatment of chronic musculoskeletal pain conditions that include TMD joint disorders. However, there still remains a void in the study as to the various rehabilitative protocols used on those patients with TMD. Recent evidence in clinical trials show that physical therapy is helpful for patients with TMD. Exercise programs designed to improve physical fitness had beneficial effects on TMD pain and dysfunction. This study establishes treatment procedures of physical therapy and provides a method of evaluation for patients with TMD disorders.

• The Journal of the Korean dental association
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• v.51 no.2
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• pp.84-91
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• 2013

Temporomandibular joint disorder(TMJD) was mainly characterized with joint pain, motion limitation, joint sound, resulted from pathologic conditions in temporomandibular joint and around tissue. As temporomandibular joint is one of decisive factors determining the occlusion, disorders in temporomandibular joint may cause the occlusal changes. The causes of occlusal changes related with TMJD can be classified into 2 categories; (1) those related to progression of disorder, 2) those related to treatment of the disorder. The clinical manifestation of occlusal changes depend on their causes and affected site. Therefore, whenever possible, treatment should be directed to the relief of the underlying causes, However, it is not always possible to relieve the underlying conditions. Moreover, some occlusal changes may remain irreversible even after the considerable improvement in clinical symptoms. Regarding the treatment of the permanent occlusal changes, it has been reported that the extensive occlusal treatment including occlusal adjustment, prosthodontic treatment, orthodontic treatment should be applied. Here, we present with a case report of occlusal change caused by the progressive temporomandibular joint disorder, together with introducing the intermaxillary traction appliance as the possible treatment option.

• Journal of Oral Medicine and Pain
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• v.38 no.2
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• pp.149-159
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• 2013

The purpose of this study was to investigate the relationship between horizontal morphology of lateral pterygoid muscle and onset of temporomandibular joint disorders. Randomly selected 150 subjects, assigned with equal number in terms of gender and age group, were included. The axial and sagittal images in their magnetic resonance images of the temporomandibular joints were used to measure the morphologic characteristics of lateral pterygoid muscles and temporomandibular joints. The measurement variables were maximal horizontal width and insertion angle to the condyle, position of the articular disc, condylar deformity, and joint effusion. In addition, presence or absence of the temporomandibular joint pain was examined through history and palpation of the joints. The relationships among measurement variables were analyzed and the results were as follow. The insertion angle of the lateral pterygoid muscle to the condyle was higher in the joint of anterior disc displacement without reduction than that in the joint of normal disc position. In addition, the maximal horizontal width of the lateral pterygoid muscle was significantly increased in joints with pain than those without pain. Also, the insertion angle was significantly higher in younger age group and the maximal width was significantly greater in male than in female. These results suggest that high insertion angle of lateral pterygoid muscle might be an important anatomic predisposing factor for anterior disc displacement in temporomandibular joint and muscular activity of lateral pterygoid muscle might be affected by preauricular pain. In conclusion, there might be a bi-directional interaction between lateral pterygoid muscle and joint in the progression of anterior disc displacement in temporomandibular joint.