• The Journal of Churna Manual Medicine for Spine and Nerves
• /
• v.18 no.2
• /
• pp.31-42
• /
• 2023

Objectives This study aimed to conduct a systematic review evaluating the effectiveness of muscle energy technique(MET) in temporomandibular joint disorders (TMD). Methods Searches were conducted in 11 electronic databases until October 2023. Randomized controlled trials(RCT) comparing the effect of MET for TMD were included. All studies were evaluated using the Cochrane Risk of Bias tool. Results Nine documents that fulfilled all the criteria were obtained for analysis. All studies showed some concerns in high risk of bias, but showed a significant improvement in pain and maximum mouth opening compared to baseline of MET or control group. MET was not better than extracorporeal shock wave therapy or myofascial release in some outcomes. Conclusions MET seems to be an effective treatment for TMD in some regards, however, can be considered as an adjunct therapy which has weak evidence. Further studies are required due to the inconclusive data and poor homogeneity found in this review.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
• /
• v.39 no.5
• /
• pp.231-237
• /
• 2013

Objectives: This study aims to evaluate the severity and pattern of symptoms exhibited by teenage Korean temporomandibular disorder (TMD) patients. Materials and Methods: Among patients with an association of TMDs, teenage patients (11-19 years) who answered the questionnaire on the research diagnostic criteria for TMD (RDC/TMD) were recruited. Results: The ratio of patients who visited our clinic with a chief complaint of clicking sound (34.5%) or temporomandibular pain (36.6%) at the initial diagnosis (examination) was the highest. In the evaluation of the depression index, 75.8% of the subjects were normal, 12.9% were moderate, and 11.3% were severe. With regard to non-specific physical symptoms (including pain), 66.5% of the subjects were normal, 17.0% were moderate, and 16.5% were severe. Concerning non-specific physical symptoms (excluding pain), 70.6% of the subjects were normal, 14.4% were moderate, and 15.0% were severe. In terms of the graded chronic pain score, high disability (grade III, IV) was found in 9.3% of the subjects. Conclusion: Among teenage TMD patients, a portion have clinical symptoms and experience severe psychological pressure; hence requiring attention and treatment, as well as understanding the psychological pressure and appropriate treatments for dysfunction.

• Physical Therapy Rehabilitation Science
• /
• v.9 no.4
• /
• pp.244-251
• /
• 2020

Objective: Physical therapy techniques are required for patients with temporomandibular joint disorder (TMD), but the effects of treatment have not been compared. Therefore, effects of transcutaneous electrical nerve stimulation (TENS) and low level laser (LLL), which are most commonly used interventions, were compared. Design: Randomized controlled trial. Methods: Thirty-six participants with pain in the temporomandibular joint were enrolled, and 12 participants were randomly assigned to either the TENS group, LLL group, or placebo group. Each intervention was performed for a total of 6 sessions for 2 weeks. For the evaluation of the participants, the mouth opening (MO), pressure pain threshold (PPT), and stress were measured at three time periods: baseline, post-test, and follow-up at 2 weeks. Results: Significant interaction between groups according to each evaluation point was found only in PPT-masseter (p<0.05). The evaluation time point at which a significant difference appeared was at the post-test and follow-up at 2 weeks time periods. As a result of the post-test, the LLL group showed a significant improvement compared to the TENS group (p<0.05), and at 2 weeks follow-up, the TENS group showed a significant improvement compared to the placebo group (p<0.05). Conclusions: In this study, an experiment was conducted to compare the treatment effects when TENS, LLL, and placebo were given to patients with TMD. In addition, by quantitatively presenting the effect size of each treatment, this study suggests clinical use of TENS and LLL treatment for TMD.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.21 no.11
• /
• pp.193-200
• /
• 2020

This study used a structured questionnaire to analyze the effects of oral habits and stress on temporomandibular disorders in high school students. A total of 339 students attending high schools in Ulsan agreed to participate in the study. Data was analyzed using the SPSS Statistics ver. 18.0 for Windows program, t-test, one-way ANOVA, correlation, and regression analysis. Our results reveal that the temporomandibular disorder index is statistically correlated with the oral habit index, school life stress index, family life stress index, interpersonal stress index, and egosphere stress index (p≤0.01). The oral habit index had maximum influence on the temporomandibular disorder index. Moreover, higher the stress level in egosphere stress, greater significant differences were observed in the temporomandibular disorder index (p≤0.01). In other words, persistence of oral habits and non-addressal of stress increased the likelihood of experiencing temporomandibular disorders in adulthood. This was determined by the regression formula Y (temporomandibular disorder index) = 2.563 + 0.550X1 (oral habit index) + 0.134X2 (egosphere stress index). Thus, bad oral habits and stress in adolescence can be the potential cause of jaw joint disorders in adulthood. We believe that measures are needed to actively recognize and improve oral habits, and properly cope with stress during adolescence.

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

• Journal of Oral Medicine and Pain
• /
• v.31 no.2
• /
• pp.127-139
• /
• 2006

Objectives: To explore the quality of life in patients with temporomandibular disorders and to evaluate it in terms of source and duration of the pain. Methods: A total of 61 patients with temporomandibular disorders participated in this study. According to pain source, they were divided into 2 groups, masticatory muscle pain (MMP) group and intracapsular pain (ICP) group. And each group was divided into acute phase group (pain duration <6 months) and chronic phase group (pain duration=6 months). The Medical Outcomes Study 36-Item Short-Form Health Survey (SF-36) was used to measure patients' quality of life. The scores for eight-scale profile and the physical component summary (PCS) and mental component summary (MCS) of the SF-36 were compared between groups (MMP vs. ICP and acute vs. chronic). Student t-test was used to analyze the difference of the scores of the SF-36 between MMP and ICP groups. Results: MMP group showed significantly lower score in the 3 scales of the SF-36 (Role limitations due to emotional problems, Vitality, Bodily pain) when compared to ICP group. In acute phase there was no significant difference between MMP and ICP group in PCS as well as MCS scores, but in chronic phase MMP group showed significantly lower MCS score than ICP group. Conclusions: The masticatory muscle pain in patients with temporomandibular disorders,negatively influences the quality of life especially in chronic phase, and the mental components of quality of life are significantly interfered in the TMD patients with chronic masticatory muscle pain.

• Journal of Oral Medicine and Pain
• /
• v.30 no.2
• /
• pp.239-246
• /
• 2005

The purpose of this study was to examine the difference of condylar and ramal vertical asymmetric indices on paonramic radiographs between temporomandibular disorder patients and normal group and according to classification of temporomandibular disorders. One hundred and twenty temporomandibular disorder patients and thirty normal individuals were selected. After tracing the panoramic radiographs, measurements for asymmetric indices were identified. The means and standard deviations of the measurement of each group were calculated and compared between two groups. Through the comparison of the measurement between two groups, following results were obtained 1. As a result of comparing condylar and ramal vertical asymmetry indices of the temporomandibular disorder patients with that of normal group, there was significant difference in condylar vertical asymmetry index between two groups and no significant difference in ramal vertical asymmetry index between two groups. 2. Condylar and ramal vertical asymmetry indices of temporomandibular joint disorder and muscle disorder patients showed greater value than normal group, but there was no significant difference between temporomandibular joint disorder patients and muscle disorder patients. 3. Among temporomandibular joint disorder patients, muscle disorder patients, and normal group, there was only significant difference in condylar vertical asymmetry index between temporomandibular joint disorder patients and normal group. 4. Among disc displacement, disc dislocation with reduction, and disc dislocation without reduction, there were no significant difference in condylar and ramal vertical asymmetry indices. 5. There were no correlation between aging and condylar and ramal vertical asymmetry indices. The results of the present study showed that condylar vertical asymmetry index of temporomandibular disorder patients showed greater values than normal group, and this difference could be considered as the features of temporomandibular disorders. Thus measuring the condylar vertical asymmetry index on panoramic radiographs is considered as the important factor for diagnosis and treatment of temporomandibular disorders.

• Maxillofacial Plastic and Reconstructive Surgery
• /
• v.41
• /
• pp.44.1-44.7
• /
• 2019

Background: We evaluated the improvement of pain and the increase in mouth opening after temporomandibular joint arthrocentesis and the possible association with various factors such as previous splint treatment, medication, and diagnosis. Results: We studied 57 temporomandibular joint disorder patients who underwent arthrocentesis at Korea University Anam Hospital. These patients (24 males and 33 females, aged between 15 and 76 years) underwent arthrocentesis that was performed by one surgeon. The degree of mouth opening (assessed using the maximum mouth opening: MMO) and pain (assessed using the visual analog scale: VAS) were assessed pre- and post-arthrocentesis. The study also investigated whether treatment modalities other than arthrocentesis (medication and appliance therapy) were performed. Statistical analysis revealed that there was a significant difference in mouth opening and pain after temporomandibular joint arthrocentesis. Preoperative appliance therapy affected the results of arthrocentesis, but it was not statistically significant. With regard to pain relief, preoperative diagnosis did not show a significant difference. However, with regard to maximum mouth opening, patients with disc displacement without reduction with limited mouth opening (closed lock) showed the highest recovery (11.13 mm). Conclusion: The average of MMO increase after arthrocentesis was 9.10 mm, and patients with disc displacement without reduction with locking (closed lock) showed most recovery in maximum mouth opening and it was statistically significant. The average pain relief of patients after arthrocentesis was 3.03 in the VAS scale, and patients using anterior repositioning splint (ARS) preoperatively showed the most pain relief.

• Journal of Korean Academy of Oral and Maxillofacial Radiology
• /
• v.28 no.2
• /
• pp.321-327
• /
• 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 society of Dental Hygiene
• /
• v.13 no.1
• /
• pp.136-145
• /
• 2013

Objectives : The goal of this study is to investigate how occupational stress affects temporomandibular disorders (TMD), dry mouth and oral symptoms. Methods : For this study, workers from 5 areas were selected and the survey was carried out from June 1st to 30th, 2012. A total of 410 questionnaires were analyzed. Results : The analysis of the structural model shows that occupational stress has no significant influence on temporomandibular disorder and dry mouth symptoms, but does affect other oral symptoms. The results also reveal that dry mouth symptom and temporomandibular disorder both have a significant effect on oral symptoms. Conclusions : Oral symptoms and job stress appeared to directly and indirectly influence the psychological and social factors of job stress. A systemic investigation on the improvement of oral health in workers is urgently required.