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"In human, the temporomandibular joint (TMJ) has been proven as a stress-bearing joint, especially during mastication. Overload of shear stress on the joint can cause degenerative diseases of the joint, such as osteoarthrosis or TMJ osteoarthritis (TMJ-OA). Free radicals have been assumed to be associated in the pathogenesis of various degenerative diseases of the joint and oxidative stress is important in the mechanism of TMJ dysfunction. Free radicals are superoxide (O2-), hydrogen peroxide (H2O2) and hydroxyl (OH-), and are called reactive oxygen species (ROS). Hydroxyl is most destructive in patients with TMJ dysfunction. ROS exert their effects on TMJ by reducing the viscosity of synovial fluid, decreasing joint surface lubrication, breakdown of collagen and proteoglycan, and increasing the activity of cartilage degradation enzymes such as metalloproteinases."

"Temporomandibular disorder (TMD) usually has non-specific signs and symptoms. The patient generally can only feel the pain, and thus complains about the stomatognatic problems without knowing the cause and the source. When the patient's chied compaint is pain, it is important to identify the source of the problem in order to provide appropriate treatment. Applied treatments for TMD can vary enormously. A female patient, age 35, came to the prosthodontic clinic with the chief complaints of pain in the right joint and limitation in mouth opening for past 7 years. In the last 2 weeks, the complaints worsened. With light pressure she could still open her mouth wider but showing deviations. She also complained about headache, tension in the forehead region, and muscle pain in the upper back body. The patient also reported that she has been chewing only on the right side for more than 20 years. Lateral transcranial x-ray showed that there were no visible structural or positional disorders. Thus, jaw exercise was decided as the initial therapy for the patient. WIthin one week, all complaints dissapeared. It was concluded that jaw exercise was a very useful form of treatment for TMD provided that the correct diagnosis is established."

"The increase of pain symptoms in the temporomandibular joint (TMJ) challenges the scientists to find a more effective therapy. The popular treatment of the temporomandibular disorder (TMD) are eg occlusal splints, orthodontic treatment, electromyographic biofeedback, medication, etc. Among these splint therapy is more successful than the others especially in dealing with pain in the TMJ. Orthodontics as a treatment for the TMD quite often creates new complains on TMJ during and/or after treatment. The extrusion of the posterior teeth in reducing anterior deep overbite have been proposed as possible cause of TMD. This paper reported that a relaxation splint was an effective solution to relieve the pain in the TMJ for the orthodontic patients where occlusal factors were related. One mounth after the splint therapy, the pain in the TMJ was slowly dissapeared, and the orthodontic treatment can be continued with the splint as an occlusal height guidance."

"Latar belakang: Prevalensi burnout syndrome ditemukan tinggi pada mahasiswa. Hal ini dapat dipengaruhi oleh prestasi akademik, status sosioekonomi, faktor budaya, dan rumpun ilmu. Tingkat burnout syndrome yang tinggi pada mahasiswa terutama mahasiswa tingkat akhir, dapat meningkatkan risiko terjadinya gangguan sendi rahang. Tujuan: Mengetahui hubungan burnout syndrome terhadap gangguan sendi rahang pada mahasiswa sarjana Universitas Indonesia Angkatan 2019, serta mengetahui hubungan antara prestasi akademik, status sosioekonomi, faktor budaya, dan rumpun ilmu terhadap burnout syndrome dan gangguan sendi rahang pada mahasiswa sarjana Universitas Indonesia Angkatan 2019. Metode: Studi dengan desain cross-sectional berupa kuesioner online, disebarkan pada bulan November 2022 kepada mahasiswa Universitas Indonesia dengan jumlah 134 responden. Burnout syndrome diukur menggunakan kuesioner MBI-SS dan gangguan sendi rahang menggunakan kuesioner TMD-DI. Hasil Penelitian: Uji Fisher exact menunjukkan adanya perbedaan bermakna (p<0,05) burnout syndrome terhadap gangguan sendi rahang, uji kendall menunjukkan korelasi positif lemah antara burnout syndrome terhadap gangguan sendi rahang. Uji chi square menunjukkan adanya perbedaan bermakna antara prestasi akademik dengan burnout syndrome (p<0,05), uji kendall menunjukkan korelasi negatif lemah antara prestasi akademik dengan burnout syndrome. Namun tidak terdapat perbedaan bermakna antara prestasi akademik dengan gangguan sendi rahang, serta status sosioekonomi, faktor budaya, dan rumpun ilmu dengan burnout syndrome dan gangguan sendi rahang . Kesimpulan: Terdapat hubungan antara burnout syndrome terhadap gangguan sendi rahang. Terdapat hubungan antara prestasi akademik terhadap burnout syndrome. Namun tidak terdapat hubungan antara prestasi akademik terhadap gangguan sendi rahang, serta status sosioekonomi keluarga, faktor budaya, dan rumpun ilmu terhadap burnout syndrome dan gangguan sendi rahang

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Background: The prevalence of burnout syndrome is found to be high in university students. This can be influenced by academic achievement, socioeconomic status, cultural factors, and knowledge groups. The high rate of burnout syndrome in university students, especially final year students, can increase the risk of developing temporomandibular disorder. Objective: This study aims to find out the relationship between burnout syndrome and temporomandibular disorder in fourth year undergraduate students at the University of Indonesia, and to determine the relationship between academic achievement, socioeconomic status, cultural factors, and knowledge groups with burnout syndrome and temporomandibular disorders in fourth year undergraduate students at the University of Indonesia. Methods: A cross-sectional study using an online questionnaire of 134 students from the University of Indonesia was distributed in November 2022. Burnout syndrome was measured using the MBI-SS questionnaire and temporomandibular disorders using the TMD-DI questionnaire. Results: The Fisher exact test showed a significant difference between burnout syndrome and temporomandibular disorder (p<0.05). The Kendall test showed a weak positive correlation between burnout syndrome and temporomandibular disorders. The chi-square test showed that there was a statistically significant difference between burnout syndrome based on academic achievement (p<0.05). The Kendall test showed a weak negative correlation between academic achievement and burnout syndrome. However, there is no statistically significant difference between temporomandibular disorders based on academic achievement, as well as burnout syndrome and temporomandibular disorder based on socioeconomic status, cultural factors, and knowledge groups. Conclusion: There is a relationship between burnout syndrome and temporomandibular disorders, as well as burnout syndrome and academic achievement. However, there is no relationship between temporomandibular disorder based on academic achievement, as well as burnout syndrome and temporomandibular disorders based on family socioeconomic status, cultural factors, and knowledge groups."

"Indonesian Journal of Dentistry 2006; Edisi Khusus KPPIKG XIV: 155-158The causes of TMD are complex and multifactorial, therefore the management should be done by several disciplines. ln this report, a 27-year-old man came to the teaching hospital of the University of Indonesia Faculty of Dentistry's Prosthodontic Department complaining about clicking sound and pain around his right joint. He received orthodontic treatment 9 years ago with removable appliance at a private practice and had 4 premolar extraction. The patient's face looked asymmetric, with a low vertical dimension, a Class II occlusion, and an anterior deep bite. Besides that, he clenched his teeth during emotional stress. Lateral tanscranial photo showed that the position of the left condyle was relatively normal or slightly anterior, and the right condyle was in the superoposterior position in the fossa with an abnormal shape. To solve this problem, the patient was referred to the Orthodontic Deparment to get a correct vertical dimension and normal anterior overbite. After 6 years, the patient was again referred to the prosthodontic Department, but the result was not successful. In order to get the right vertical dimension, an occlusal splint was fabricated to achieve a comfort jaw relation. In this position, the overbite was 2 mm, but space between the upper and lower posterior teeth was 5 mm. In this situation, full veneer crowns were not impossible to fabricate. Finally, to maintain this comfort position, the patient was suggested to wear the occlusal splint and come regularly for control every 6 months."

"ABSTRAKLatar Belakang: Proses penuaan dapat menyebabkan perubahan fisiologis pada jaringan gigi dan mulut, termasuk fungsi pada sendi temporomandibula. Mastikasi merupakan salah satu fungsi sistem stomagtonati yang dapat dipengaruhi oleh gangguan sendi temporomandibula (Temporomandibula Disorders). Tujuan: Menganalisis hubungan antara gangguan sendi temporomandibula terhadap kemampuan mastikasi, serta menganalisis pengaruh faktor sosiodemografi terhadap gangguan sendi temporomandibula dan kemampuan mastikasi. Metode: Penelitian ini dilakukan dengan desain cross sectional pada 100 pasien Puskesmas Kecamatan Kramat Jati berusia 60 tahun ke atas. Dilakukan pencatatan diri responden, pemeriksaan klinis intraoral, dan wawancara menggunakan kuesioner kemampuan mastikasi dan ID-TMD. Hasil penelitian: Gangguan sendi temporomandibula memiliki hubungan (p < 0,05) terhadap kemampuan mastikasi. Terdapat hubungan antara usia dengan gangguan sendi temporomandibula, tetapi tidak terdapat hubungan antara jenis kelamin, tingkat pendidikan dan status ekonomi dengan gangguan sendi temporomandibula. Terdapat hubungan antara usia, tingkat pendidikan, dan status ekonomi dengan kemampuan mastikasi, tetapi tidak ada hubungan antara jenis kelamin dengan kemampuan mastikasi. Kesimpulan: Terdapat pengaruh gangguan sendi temporomandibula terhadap kemampuan mastikasi pada lansia.

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ABSTRACTBackground: Aging process involve physiological changes in the teeth and mouth tissues, including temporomandibular joint function. Mastication is one of the main functions of the stomatognathic system that may be affected by temporomandibular disorders. Objectives: To analyze the relationship between temporomandibular disorder towards masticatory ability, to analyze sociodemographic factors (age, gender, educational level, and economic status) towards temporomandibular disorder and masticatory ability. Methods: Cross-sectional study was conducted on 100 patients of Puskesmas Kramat Jati aged 60 years and over. Subject's data and oral examination were obtained, and interview for masticatory ability and ID-TMD were conducted. Results: There was correlation (p < 0.05) between temporomandibular disorder towards masticatory ability. There was correlation between age towards temporomandibular disorder, but there was no correlation between gender, educational level and economic status towards temporomandibular disorder. There was correlation between age, educational level, and economic status towards masticatory ability, but there was no correlation between gender towards masticatory ability. Conclusion: This study shows that temporomandibular disorders negatively influence masticatory ability in elderly."

"Pre-prosthetic treatment is very important step to get a successful prosthodontic treatment. This study reported a case of a patient with missing teeth on left and right lower first and second molar with TMJ symptoms. Other symptoms felt by the patients were car pain and shoulder pain. After detailed examination, pre-prosthetic treatment needed by the patient was the TMH treatment. The usage of occlusal splint as one of the methods to treat the TMD where i.e. eliminate the occlusal disorder to reduce the neuromuscular activity and to regain a stable centric relation. After the splint treatment, an open bite on the posterior teeth appeared. To solve this problem, a removable frame prosthesis enhanced with overlay rest was fabricated. With this prosthesis, the TMJ symptoms stopped recurring. It was concluded that to achieve a successful prosthesis a detailed and comprehensive treatment was needed including the pre-prosthetic treatment along with the patient's motivation and cooperation."

"Gangguan sendi temporomandibula (GSTM) adalah gangguan otot dan kelainan artikular dalam fungsi komponen otot dan/atau sistem artikular yang disertai dengan tanda dan gejala klinis yang sangat bervariasi. Adanya riwayat GSTM dapat menjadi pertimbangan dalam rencana perawatan ortodonti. Tidak semua menyadari bahwa mereka memiliki GSTM yang salah satunya disebabkan oleh maloklusi, sehingga mereka datang hanya ke klinik Ortodonti hanya untuk perbaikan maloklusi. Tujuan penelitian ini adalah (1) Mengetahui proporsi dan distribusidemografi pasien dengan GSTM termasuk maloklusi (hubungan rahang, overjet, overbite, hubungan molar dan kaninus) dan sudut parameter vertikal padasefalometri lateral di klinik spesialis ortodonti RSKGM FKG UI. (2) Mengetahui hubungan GSTM dengan maloklusi serta hubungan GSTM dengan sudut parameterskeletal. Studi deskriptif dengan desain penelitian potong lintang pada pasien tahun kunjungan 2013-2018 yang memiliki GSTM pada anamnesis dan/atau pemeriksaan fungsional. Digunakan analisis univariat menggunakan SPSS 23 untuk menggambarkan distribusi dan analisis korelasi untuk menggambarkan hubungan.Didapatkan 98 status pasien yang mengalami GSTM. Ditemukan lebih banyak pasien perempuan daripada laki-laki dengan usia rata-rata 24,8 tahun dankebanyakan berprofesi sebagai karyawan swasta. Gejala GSTM yang paling sering ditemukan adalah deviasi pergerakan mandibula dan clicking. Terdapat hubungan antara GSTM dengan maloklusi skeletal kelas II dan hubungan kaninus kelas III.

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Temporomandibular disorder (TMD) is a muscle disorder and articular abnormality in the functioning of the muscular components and/or articular system which is accompanied by very variable clinical signs and symptoms. A history of TMD can be considered in an orthodontic treatment plan. Not all are aware that they have TMD, one of which is caused by malocclusion, so they only come to the Orthodontics clinic only for treating malocclusion. The objectives of this study are

(1) To determine the proportion and demographic distribution of patients with GSTM including malocclusion (skeletal, overjet, overbite, molar and canine relations) and the angles of the vertical parameters in the lateral cephalometry at the orthodontic specialist clinic in Dental and Oral Hospital, Faculty of Dentistry, Universitas Indonesia. (2) To determine the relationship of TMD with malocclusion and the relationship of TMD with skeletal parameter angles. Descriptive study with

a cross-sectional study design in patients in the 2013-2018 visit who had TMD on history taking and/or functional examination. Univariate analysis using SPSS 23 is used to describe the distribution and correlation analysis to describe the relationship. Obtained 98 status of patients experiencing TMD. It found more female patients than men with an average age of 24.8 years and mostly work as private employees. The most common symptoms of TMD are deviation mandibular movement and clicking. There is a relationship between TMD with skeletal class II

malocclusion and class III canine relationship."

"Tujuan: Menganalisis pengaruh gangguan sendi temporomandibula terhadap aktivitasotot mastikasi. Metode penelitian: Subjek merupakan pasien dengan tipe wajahdolichofacial berusia 15 - 35 tahun yang belum melakukan perawatan ortodonti, yaitu 11dengan gangguan sendi temporomandibula dan 11 tanpa gangguan senditemporomandibula sebagai kontrol. Pemeriksaan elektromiografi pada otot masseter dantemporalis anterior dilakukan dengan menginstruksikan pasien menggigit cotton rollsselama 5 detik. Perhitungan Root Mean Square dari pemeriksaan EMG masing-masingotot dibandingkan dengan uji T tidak berpasangan dan uji korelasi Spearman. Hasil:Terdapat perbedaan yang signifikan antara akticvitas otot kanan masseter, kiri masseter,dan kanan temporalis anterior pada pasien maloklusi dengan dan tanpa gangguan senditemporomandibula yang memiliki tipe wajah dolichofacial. Terdapat korelasi negatifantara otot mastikasi tersebut dengan gangguan sendi temporomandibula. Kesimpulan:Pasien dolichofacial dengan gangguan sendi temporomandibula memiliki aktivitas ototmasseter dan otot temporalis anterior yang lebih lemah jika dibandingkan dengan pasientanpa gangguan sendi temporomandibula

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Objectives: This study aimed to analyze the influence of temporomandibular joint

disorder (TMD) on surface electromyography activity in the masticatory muscles.

Methods: Dolichofacial patients (n = 22) aged 15 to 35 years were examined: 11 with

TMD and 11 control subjects without TMD. A standardized surface electromyography

recording was performed on the masticatory muscle during 5 s of maximum voluntary

clenching on cotton rolls. The root mean square value of each muscle was calculated and

analyzed for differences using an unpaired Student’s t-test. Spearman’s correlation

coefficients (r) were calculated for the determination of correlations between TMD and

root mean square values. Results: Surface electromyography revealed significant

differences in the right temporal, right and left masseter during maximum voluntary

clenching. Both sides of the masseter and right temporal also showed a negative

correlation with TMD. During maximum voluntary clenching, TMD patients had

relatively lower elevator muscle activity. Conclusions: Electromyographic activities in

the masseter muscles were lower in dolichofacial patients with TMD than non-TMD

controls. Surface electromyography of masticatory muscles may assist the clinical

assessment of TMD patients."