• Journal of Korean Academy of Oral and Maxillofacial Radiology
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• v.28 no.2
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• pp.321-327
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• 1998

The author examined bone changes from 1274 poly tomographic images of 182 temporomandibular joints which showed symptoms of temporomandibular disorder and the following results were obtained; 1. The number of temporomandibular joints which showed bone changes were 64 (35.2％) among 182 joints. 2. The age and sex distribution of 64 joints which had bone changes showed the prevalence of female (90.6％) and third decade (25.0％) followed by fourth (21.2％) and second decade (17.2％). 3. The 252 images which showed bone changes consisted of 56 images from lateral side (22.2％). 118 images from center (46.8％) and 78 images from medial side (30.9％). 4. The most frequently observed bone changes were flattening (22.7％) followed by sclerosis (19.3％) and cortical unsharpness (19.3％)

• Journal of Korean Dental Science
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• v.1 no.1
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• pp.15-21
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• 2008

Purpose : This epidemiological research was conducted to investigate the relationship between the groups of TMD and the behavioral, psychological, and physical symptoms through RDC/TMD. Subjects and Methods : The subjects of this research were the 286 patients who had visited Seoul National University Bundang Hospital; their common chief complaint was temporomandibular discomfort. The mean age of the patients was 32.9 from 11 to 85, and the number of men and women was 67 and 219, respectively. The patients were examined through clinical and radiological methods and diagnosed by 1 investigator. They were divided into 3 groups: myogenous group (group 1), arthrogenous group (group 2), and combined group (group 3). The behavioral, psychological, and physical symptoms were evaluated through questionnaires on RDC/TMD. Specific items were selected to calculate the graded chronic pain (characteristic pain intensity, disability points), jaw disability, depression, and non-specific physical symptoms (pain items included/excluded) in the questionnaire. One-way ANOVA, Kruskal-Wallis test, and chi-square test were applied as statistical methods. Results : As a result of classifying temporomandibular disorder in this study, the patients were distributed as follows: 9.1% of group 1, 79.7% of group 2, and 11.2% of group 3. In the analysis of graded chronic pain (characteristic pain intensity, disability points), jaw disability, and non-specific physical symptoms (pain items included/excluded), group 3 had the highest score, and the difference was significant (p<0.001). Moreover, the depression score of group 3 was significantly higher than groups 1 and 2 (p<0.05). Note that that the second order of jaw disability score was group 2, on the other hand, those of the other groups were group 1. Conclusion : Myofascial pain could be assumed to be related closely to the behavioral, psychological, and physical symptoms except jaw disability compared to joint pain through RDC/TMD.

• Journal of Korean society of Dental Hygiene
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• v.13 no.4
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• pp.651-657
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• 2013

Objectives : The purpose of the study is to verify the correlation between teenagers' use of internet and temporomandibular joint disorders(TMJD) because TMJD patients gradually increase in high school students. Methods : Subjects were 221 male high school students attending liberal arts and commercial schools from 9 to 21 of April, 2012. Students completed self-reported questionnaire. Results : TMJD symptoms included crackling joint (32.1%), headache (18.6%), malocclusion (8.1%), and jaw fatigue and muscular aching (7.2%). Students having at least one symptom accounted for 49.8%. Students having at least one poor habit accounted for 83.7% and 34.0% of the students used internet for 3 hours.. Score of students experiencing shoulders and chest pain was $5.13{\pm}1.10$ (p<0.05). Score of TMD afflicting area revealed $4.67{\pm}2.73$ (p<0.05) in mastication pain ($4.13{\pm}2.73$ (p<0.05)) due to long hours of internet use. Score of jaw fatigue related to muscular pain was $4.31{\pm}1.96$ (p<0.01). Duration of computer use was related to perceived TMJD symptoms (r=.153). Long duration of computer use was related to poor oral cavity habits (r=.157). Conclusions : Male high school students can perceive slight TMD which needs self management and regular check-ups and try to prevent TMD by utilizing measurement tools on TMD. Also, this study helps to prevent from worsening TMD by shortening hours of computer utilization.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• v.41 no.3
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• pp.125-132
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• 2015

Objectives: The purpose of this study was to clarify which findings in magnetic resonance imaging (MRI) are good predicators of pain and mouth opening limitation in patients with temporomandibular joint (TMJ) internal derangement (ID). Materials and Methods: Clinical examinations for pain and mouth opening limitation were conducted for suspected TMJ ID. MRI scans were taken within a week of clinical examinations. On the oblique-sagittal plane image, readings were obtained in terms of the functional aspect of disc position, degree of displacement, disc deformity, joint effusion, and osteoarthrosis. Multiple logistic regression analyses were conducted to identify the predictors of pain and mouth opening limitation. Results: A total of 48 patients (96 TMJs) were studied, including 39 female patients and 9 male patients whose ages ranged from 10 to 65 years. The resultant data showed significant correlations between pain and the MR imaging of the degree of disc displacement (P<0.05). The probability of there being pain in moderate to significant cases was 9.69 times higher than in normal cases. No significant correlation was found between mouth opening limitation and MRI findings. Conclusion: We identified a significant correlation between clinical symptoms and MRI findings of ID. The degree of anterior disc displacement may be useful for predicting pain in patients with TMJ ID.

• Maxillofacial Plastic and Reconstructive Surgery
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• v.42
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• pp.14.1-14.11
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• 2020

Background: The purpose of this study is to introduce our modified disc plication technique using MITEK mini anchors and to evaluate the clinical outcome for patients with internal derangement (ID) of the temporomandibular joint (TMJ). Patients and methods: We evaluated 65 joints in 46 patients, comprised 32 women and 14 men, who first visited the Asan Medical Center from December 2012 to December 2016. The age of the patients ranged from 14 to 79 years, with a mean age of 36.6 years. The patients presented with joint problems including pain, joint noise, and mouth opening limitation (MOL). Patients who met our inclusion criteria underwent unilateral or bilateral disc repositioning surgery with our minimally invasive disc plication technique using MITEK mini anchors and No. 2-0 Ethibond^® braided polyester sutures. The variables taken into account in this study were the range of maximum mouth opening (MMO), painful symptoms (evaluated with the visual analog scale, VAS), and the type of noise (click, popping, crepitus) in the TMJ. Results: Preoperative examination revealed painful symptoms in 50.7% (n = 35) of the operated joints (n = 69) and the presence of clicks in 56.5% (n = 39). Postoperative examination revealed that 4.3% (n = 3) of the operated joints had painful symptoms with lower intensity than that in the preoperative condition. Additionally, 17.4% (n = 12) had residual noise in the TMJ, among which two were clicking and the other 10 had mild crepitus. The intensity of the postoperative residual noise was significantly decreased in all cases compared to that in the preoperative condition. Among patients with MOL below 38 mm (n = 18), the mean MMO was 31.4 mm preoperatively and 44.2 mm at 6 months postoperatively, with a mean increase of 13.8 mm. A barely visible scar at the operation site was noted during the postoperative observation period, with no significant complications such as facial palsy or permanent occlusal disharmony. Conclusion: Subjective symptoms in all patients improved following the surgery. TMJ disc plication using MITEK mini anchors with our minimally invasive approach may be a feasible and effective surgical option for treating TMJ ID patients who are not responsive to conservative treatment.

• Journal of Korean Physical Therapy Science
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• v.7 no.1
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• pp.295-310
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• 2000

The relationship between symptoms of temoromandibular joint dysfunction(TMJD) and stomatognathic habit was studied in 500 adolescents(mean age 22.45). The severity of TMJD was determined by using a self-reported anamnestic questionnaire composed of 10 questions regarding common TMJD. The index of oromandibular habit was determined by using a self-reported anamnestic questionnaire composed of 17 questions. There was a positive correlation(p<0.01) between the index of TMJD and index of stomatognathic habit. The most frequent symptoms were clicking sounds from the TMJ(37.4%) and a feeling of pain in the jaws(33.3%). The most frequent stomatognathic habit were a chin support(69.8%) and one side chewing(68.0%).

• Journal of Korean Academy of Oral and Maxillofacial Radiology
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• v.10 no.1
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• pp.47-55
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• 1980

The author analysed the routine radiographic changes and clinical symptoms of 205 cases of temporomandibular joint arthrosis. The clinical symptoms of the patients were classified and the morphological ylar head, articular eminence, and articular fossa were analized and discussed view point. The positional changes of condylar head and articular fossa relatation in TMJ arthrosis were observed. The frequencies of coincidence between the site of complaints and the site of the abnormal images which could be detected were examined. The results were obtained as follows; 1. Bone erosion, deformity, marginal proliferation and sclerosis were selected from many abnormal images as the radiographic diagnostic criteria of TMJ arthrotic lesions. 2. Abnormal radiographic findings were revealed in 150 cases (73.9%) of 205 total TMJ arthrosis cases and site with abnormal findings coincided with the site of complaints in 106 cases (70.7%) of 150 cases and coincidence rates were higher above fourth decades than below third decades. 3. Sclerosis of the abnormal radiographic findings could be found more often below third decades than above fourth decades. 4. The positional changes of condylar head were revealed in 176 cases (85.9%) of 205 total cases. 5. Pain complaints were revealed in 170 cases(82.9%) and clicking sounds were revealed in 120 cases (58.6%) of clinical symptoms of TMJ arthrosis. 6. No tendency was found so far the differential diagnosis between pain dysfunction syndrom and osteoarthrosis of TMJ.

• Maxillofacial Plastic and Reconstructive Surgery
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• v.18 no.1
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• pp.78-86
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• 1996

This is a retrospective study of 31 patients, who were diagnosed as bilateral TMJ internal derangement in consequence of magnetic resonance imaging (MRI) of the temporomandibular joint (TMJ) at Department of Dentistry, Ajou University Hospital, and who were compared clinical findings with radiological findings. The results obtained were as follows. 1. The average of the patients of bilateral TMJ internal derangement was 27.3 years with a range from 12 to 74 years, and 93.6% of the patients were yonger than 40 years of age. The male-female ratio was 1 : 6.8, and the females of $20{\sim}29$ years were most common in 35.5%. 2. In the patients of bilateral TMJ internal derangement, the patients who complained clinical symptoms bilaterally were 38.7% and the patients who complained clinical symptoms untilaterally were 61.3%. 3. The most common disc position of bilateral TMJ internal derangement was anterior disc displacement without reduction on both sides in 38.7%. The most common disc configuration of bilateral TMJ internal derangement was biconcave on both sides and amorphous on both sides in closed mouth, and was amorphous on both sides in open mouth. 4. In the patients of bilateral TMJ internal derangement, the joints which really showed clinical symptoms were most common in anterior displacement without reduction of 48.9%.

• The Journal of Korean Academy of Orthopedic Manual Physical Therapy
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• v.13 no.2
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• pp.1-11
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• 2007

Purpose: The purpose of this study was to determine the effect of continuous wave ultrasound and pulsed wave ultrasound that influence changes in pain and range of motion when applied to patients with temporomandibular joint disability. Methods: The subjects of the study were 40 selected patients who had been diagnosed with temporomandibular joint movement restriction and had endured pain for more than two weeks. These patients had visited K orthopedic surgery in Deagu measured from October 1, 2004 to March 31, 2005. The subjects were divided into two groups with 20 patients each. The one group was applied to continuous wave ultrasound and the other group was applied to pulsed wave ultrasound at a dosage of 1.5 W/$cm^2$ for a duration of 5 minutes and eight times for two weeks. The pain perception degree were measured by using Visual Analogue Scale(VAS) and the range of motion was measured by using a rule for each group. Results: The results obtained were as follows The change in the pain perception degree were statistically significant in both group(p<0.05) ; however, the continuous wave ultrasound group showed more difference in the average decrease in the pain perception degree than did the pulsed wave ultrasound group. Both groups showed significant results regarding changed in the range of motion(p<0.05) ; Comparing the difference in the average of the range of motion between the two groups, came back from normal the range of motion of temporomandibular joint at the both groups. Conclusion : Based on the results of this study, we found that both groups showed decreased pain and increased the range of motion, but the continuous wave ultrasound method had a higher therapy effect pain and the range of motion than the pulsed wave ultrasound method to patients with temporomandibular joint disability. With such finding, we expect that according to ultrasound therapy applicant method can be helped usable accurately to patients with variety symptoms temporomandibular joint disability.

• Journal of Dental Anesthesia and Pain Medicine
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• v.20 no.5
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• pp.263-269
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• 2020

Fibromyalgia is a syndrome characterized by chronic pain in the skeletal system accompanied by stiffness, sleep disturbance, fatigue, and psychiatric problems, such as anxiety and depression. Fibromyalgia commonly affects orofacial health, presenting with a variety of oral manifestations, including temporomandibular disorder, xerostomia, glossodynia, and dysgeusia. Therefore, oral healthcare providers need to be aware of this clinical entity to effectively manage oral symptoms and provide proper oral self-care modification and education on the nature of fibromyalgia. This review focuses on the epidemiology, pathophysiology, clinical manifestation, diagnosis, orofacial concerns, and treatment of fibromyalgia.