Prevalence Of Temporomandibular Joint Dysfunction Research Articles

EFFICACY OF BOTULINUM TOXIN TYPE A IN REDUCING CHRONIC TENSION HEADACHE IN PATIENTS WITH TEMPOROMANDIBULAR JOINT DYSFUNCTION

There is a notable prevalence of temporomandibular joint dysfunction, reaching approximately 34% in the general population according to the recent studies. Individuals with such dysfunction often experience tension headaches due to increased tension in the masticatory muscles, a key symptom of temporomandibular joint dysfunction. Botulinum toxin type A injections into these muscles are utilized to alleviate the dysfunction, as this drug inhibits neuromuscular impulses, thereby reducing muscle tension. This study aimed to assess the efficacy of alleviating chronic tension headaches in patients with temporomandibular joint dysfunction through botulinum toxin type A injections into trigger points of the masticatory muscles. Sixty patients exhibiting signs of temporomandibular joint dysfunction and chronic tension headaches participated in the study. They were randomly assigned to either an experimental group receiving botulinum toxin type A injections or a control group receiving saline injections into the masticatory muscles. Injections were administered at sites with the highest muscle tension in the masseter and temporalis muscles. The reduction in chronic tension-type headaches was evaluated using a visual analogue pain scale. The results indicated a statistically significant decrease in headache intensity in the experimental group compared to the control group (P<0.001). Furthermore, the experimental group demonstrated significant treatment efficacy based on headache intensity before and after 12 weeks from the drug administration date (P<0.001).

Prevalence of temporomandibular joint dysfunction among the indigenous population of India

PurposePrimary dental care facilities and awareness about temporomandibular disorders are lacking among the indigenous population of Kerala. The aim of the study was to determine the prevalence of temporomandibular joint dysfunction (TMD) disorders among the indigenous populations of Kerala. MethodologyThis cross-sectional study included adults aged 18 years and above, visiting primary health care centre in the tribal hamlet in the town of Kalpetta, Wayanad District, Kerala, India, for reasons other than dental. Axis I and II of Research Diagnostic Criteria for Temporomandibular Disorders (DC/TMD) was used to screen for TMD. A local language validated screening questionnaire was used. The clinical examination was carried out as per the DC/TMD by a calibrated examiner. The data was processed using SPSS and the frequencies and proportions for signs and symptoms of TMD were estimated. ResultsAmong 198 adults screened, 23 (11.6 %) had TMD. Among these 60 % of the adults were aged 31–65 years and predominantly females (86.9 %). 39 % of these patients were dentulous. All affected adults experienced TMD related pain for more than 3 months with 90 % of them experiencing moderate-to-severe pain. Myofascial pain was the most prevalent type. Other findings included moderate anxiety levels in 34.8 % and abnormal oral behaviour and high physical symptoms in 40 % TMD patients. ConclusionTMD disorders were prevalent among the indigenous population and remained undiagnosed. The study highlights the need for screening and the availability of basic dental care for the indigenous populations.

Association of Stress with Prevalence of TMJ Dysfunction in Undergraduate Dental Students

Temporomandibular joint disorder (TMD) refers to persistent medical conditions that affect the temporomandibular joint (TMJ) and related structures. Studies showed that stress was closely linked to the development of TMD. Furthermore, healthcare students are particularly susceptible to stress compared to the general population. This can have a negative impact on their quality of life and mental health during their training. The increased prevalence of TMD has also been reported among the same cohort of the population. However, there is a lack of literature published highlighting the prevalence of TMD and their association with increased levels of stress in dental students. This study aims to explore whether increased stress levels are associated with the prevalence of TMD in undergraduate dental students. A total of 218 dental students participated. Two online self-reported questionnaires consisted of structured case history on past medical and dental history with a Fonseca Amnestic Index (FAI) questionnaire used to identify the prevalence of TMD and DESS questionnaire for stress prediction were used. Data were analyzed using SPSS version 22 with a p-value less than 0.05. It was reported that about 48% of students had various TMD with no significant association found between the year of study and gender. However, a significant association was reported between stress gender. A positive correlation was also found between stress and TMD among participants. This study revealed a significant association between stress and the prevalence of TMD in undergraduate dental students. Educational institutions must adopt coping strategies to help trainees manage their psychological stress, which could reduce the incidence of TMD.

Ortodontik Tedavi Görmek İsteyen Bireylerde Kaygı Düzeyleri, Temporomandibular Eklem Disfonksiyonu Skorları ve Ortodontik Maloklüzyon Arasındaki İlişkinin Değerlendirilmesi

Amaç: Ortodontik tedavi görme isteğiyle başvuran genç yetişkin bireylerde Beck Anksiyete İndeksi (BAI)
 ile belirlenen kaygı düzeyleri ve Fonseca Anamnestik İndeksi (FAI) ile belirlenen Temporomandibular
 Eklem Disfonksiyonu (TMD) prevalansı ile Sınıf I, Sınıf II ve Sınıf III ortodontik maloklüzyonlar arasındaki
 ilişkinin değerlendirilmesidir.
 Gereç ve Yöntemler: Maloklüzyonlarının düzeltilmesi için ardışık olarak başvuran, 14-24 yaş arası
 genç yetişkinlerden oluşan 120 katılımcı çalışmamızın gerecini oluşturmuştur. Yapılan klinik muayene
 sonucunda dental maloklüzyonlarına göre bireyler Angle Sınıf I, II ve III olarak 3 gruba ayrılmıştır. Her
 grup kendi içinde kadın ve erkek bireyler olarak iki alt gruba ayrılmış ve sonuçta her bir grupta 20 birey
 olacak şekilde 6 grup oluşturulmuştur. Hastalara rutin ortodontik muayenenin yanı sıra TMD prevalansı
 ve şiddetini değerlendirmek amacıyla FAI ve kaygı düzeylerini belirlemek amacıyla da Beck Anksiyete
 BAI uygulanmıştır. Verilerin istatistiksel değerlendirmesi için Fischer’s Exact, Mann-Whitney U ve
 Kruskal Wallis testleri kullanılmıştır. BAI ve FAI arasındaki ilişkiyi değerlendirmek için Kendall Tau-b
 korelasyon testi kullanılmıştır. Anlamlılık düzeyi p

Impact of surgically assisted rapid mandibular expansion on the temporomandibular joint - A retrospective study

This study evaluates the impact of tooth-borne Surgically Assisted Rapid Mandibular Expansion (SARME) on the temporomandibular joint (TMJ) function and condylar morphology.Medical records of patients who received a SARME between 2014 and 2018 are retrospectively reviewed concerning functional problems. Morphological changes of the condyles are analyzed by means of surface registration of 3D reconstructed CBCT scans preoperatively and one-year postoperatively, and correlated to functional outcome.In 68 patients data are complete. The risk of TMJ dysfunction is slightly increased from 18 to 25% at a mean of 14 months after SARME. This is attributed to an increase in the number of minor problems (75–82%). The presence of complaints before SARME is the only identifiable risk factor for also having complaints after the intervention (p = 0.0019). In one patient with pre-existent TMJ dysfunction complaints deteriorated after SARME. After SARME no cases of extended condylar resorption are described. There is no correlation between morphological condylar changes and the prevalence of TMJ dysfunction (p = 0.7121 for appositional and p = 0.3038 for resorptive changes). However, appositional and resorptive changes at the condylar head appear to correlate with growth potential, based on age, gender and skeletal deformity (p < 0.0001 and p = 0.0154 respectively).Within the limitations of the study it seems that SARME does not have a negative impact on TMJ function or condylar integrity and, therefore, the choice for or against this approach can be made without considering consequences for TMJ a major issue for the decision.

TMJ MORPHOLOGICAL FEATURES OF DIFFERENT TYPES OF MALOCCLUSION CAUSING PATHOLOGICAL LOWER JAW POSITION ASYMMETRY

According to Russian researchers, the prevalence of temporomandibular joint dysfunction ranks third in the structure of dental morbidity among adults. In recent decades, the attention of clinicians to the problem of TMD has been growing rapidly due to the difficulties in the diagnosis and treatment of patients with malocclusion, complicated by joint pathology. The purpose of this article is to search for new knowledge that will improve quality of diagnosis of dysfunctional changes in the TMJ of patients with various malocclusion pathologies by identifying correlations between anatomical and morphological features of the joint and dentoalveolar anomalies. Understanding the trends in the development of characteristic morphofunctional disorders will make it easier for doctors to plan treatment for orthodontic patients and increase its effectiveness. Such patients require special attention from orthodontists. When writing this article, we have studied a lot of modern literature, as well as studies of foreign and Russian scientists who is involved in the treatment of dysfunction. However, we have not found the information that would show a direct relationship between anatomical and morphological features and malocclusion pathology, which was the purpose of our work. The article describes in detail the morphological and functional changes that occur at different stages TMD, the relationship between the shape of the glenoid fossa morphology process, included classification of the forms condyloid process described features of the development of bone structures of the TMJ depending on the type of pathological occlusion. Revealed statistics demonstrate the dependence of the frequency of dysfunction on the shape of the articular head and fossa. The analysis of computer tomograms of patients of the Department of Pediatric Dentistry and Orthodontics of the First Sechenov Moscow State Medical University allows us to conclude that the oval shape of the TMJ head and the rounded shape of the articular surface of the temporal bone can become a prerequisite for the development of dysfunctional changes. The results of our study will help orthodontists improve the quality of diagnostic measures and the effectiveness of treatment of patients with suspected TMD.

INTERRELATION OF TEMPOROMANDIBULAR JOINT DYSFUNCTION IN PATIENTS WITH GYNECOLOGICAL CHANGES IN ANAMNESIS ACCORDING TO THE QUESTIONNAIRE SURVEY

INTERRELATION OF TEMPOROMANDIBULAR JOINT DYSFUNCTION IN PATIENTS WITH GYNECOLOGICAL CHANGES IN ANAMNESIS ACCORDING TO THE QUESTIONNAIRE SURVEY

Assessment of Prevalence of Temporomandibular Joint Dysfunction in the Karabük Province of the West Black Sea Region

Amaç: Bu araştırmanın amacı Karabük ili ve çevresinden temporomandibular eklem (TME) disfonksiyonu şikâyeti ile kliniğimize başvuran hastaları yaş, cinsiyet, semptom ve disfonksiyonun türü açısından değerlendirmektir. Yöntemler: Çalışmaya, Aralık 2016-Mart 2018 tarihleri arasında, kliniğimize TME disfonskiyonu ile başvuran 233 hasta dahil edilmiştir. İlgili muayeneler tek bir hekim tarafından, bilateral olarak yapılmıştır. TME bozukluğu teşhisi konulurken, Temporomandibular Rahatsızlıklar/ Teşhis Kriterleri Eksen I (TMR/TK Eksen I)’den ve manyetik rezonans görüntülemeden yararlanılmıştır. Bulgular: Çalışmamızın sonuçlarına göre, 19-48 yaş aralığındaki bireylerde ve kadınlarda TME disfonksiyon görülme prevalansı istatistiksel olarak anlamlı derecede yüksek bulunmuştur (p&amp;lt;0.001, p&amp;lt;0.05). En belirgin semptom ağrıydı ve bunu sırasıyla eklemde klik sesi ve krepitasyon takip etti. Teşhis edilen TME disfonksiyonlarının türü-hasta sayısı yönünden değerlendirmede ise Redüksiyonlu Disk Deplasmanı tanısına sahip hasta sayısı diğer disfonksiyon türlerine sahip hasta sayılarına göre istatistiksel olarak anlamlı düzeyde daha fazla bulunmuştur (p&amp;lt;0.001). Sonuç: Bizim bölgemizdeki TME disfonksiyonlarının büyük çoğunluğu genç ve yetişkinlerde ve daha çok kadınlarda ortaya çıkan Redüksiyonlu Disk Deplasmanı (kas problemlerinin eşlik etmediği) olarak gözükmektedir.

Theories that underlie the prevalence of third molar impaction: New theory

IntroductionThe purpose of this review was to introduce a new theory being the mechanical theory which hypothesizes that modernization is related to a reduction in the functional activities of the jaw which in turn negatively impacted the structure of the jaw, mandibular teeth line. A secondary aim was to briefly review the evolution and growth theories. Based on the information that were reviewed, it was found that modern societies possess higher prevalence of temporomandibular joint dysfunction. Materials & methodsThe proposed mechanical theory is an added value to explain the impact of modernization on the prevalence of impacted third molar. During this transition societal factors and peoples’ quality of life changes people’s eating behavior and the associated activities of the mastication apparatus, jaw activities. The aim of this review was to introduce a new theory being the mechanical theory which hypothesizes that modernization is related to a reduction in the functional activities of the jaw which in turn negatively impacted the structure of the jaw, mandibular teeth line. A secondary aim was to briefly review the evolution and growth theories. ConclusionBased on the information that were reviewed, it was found that modern societies possess higher prevalence of temporomandibular joint dysfunction. The proposed mechanical theory is an added value to explain the impact of modernization on the prevalence of impacted third molar.

Clinical and sociodemographic characterization of patients with temporomandibular dysfunction of the University Hospital of Maracaibo.

Abstract: Objective: To describe the clinical and sociodemographic characteristics of patients with temporomandibular joint (TMJ) dysfunction at the University Hospital of Maracaibo. Methods: A retrospective study was conducted by assessing the clinical history of patients with TMJ dysfunction who underwent orthopedic treatment in the Oral Surgery Unit of the Dentistry Service of the University Hospital of Maracaibo. Information was collected on socio-demographic characteristics (age, gender, origin, and occupation) and clinical findings related to the presence, location, area, beginning, frequency, cause, and duration of pain, and signs present during mandibular dynamics; additionally, a structural and functional diagnosis was made. The data were processed and analyzed using SPSS v.9. Results: 221 patients were included, with only 10% of the disorders observed in males. Regarding occupation, 39.1% worked at home and 28.3% were students. 97.2% of patients presented pain, and of these, pain was localized in 75%. During mandibular movement with maximum opening, 47.4% showed some difficulty, which was more significant in males. TMJ noises were noted in 74.9%, more often in females. In addition, the previous partial displacement of a disk with recapture presented an incidence of 66.4%. Conclusion: The prevalence of TMJ dysfunction was higher in female patients and in adulthood. Noises were present with a high frequency, as was limited mandibular movement.

Temporomandibular Joint Dysfunction in a cohort of women with Rheumatoid Arthritis

Temporomandibular joint dysfunction (TMD) is characterized by the presence of signs and symptoms that lead to functional changes in this joint. Most of the times with a multifactorial etiology, it can be associated to systemic diseases, such as rheumatoid arthritis (RA). Objectives: to evaluate the prevalence of TMD in a cohort of women with RA, as well as possible links between its presence and disease activity and duration, smoking and frequent consumption of chewing gum, compared with a control group of healthy controls.

Rate of Prevalence of Temporomandibular Joint Dysfunction (MPDS) Among Partially Edentulous Population around Patna: A Population Based Study

Rate of Prevalence of Temporomandibular Joint Dysfunction (MPDS) Among Partially Edentulous Population around Patna: A Population Based Study

Assessment of temporomandibular joint dysfunction in condylar fracture of the mandible using the Helkimo index.

Introduction:Condylar fractures of the mandible are functionally important fractures as the condyle of the mandible being a part of the temporomandibular joint (TMJ) and can lead to TMJ dysfunction if not properly treated.Materials and Methods:This was a cross-sectional study of a total of 33 treated patients with fracture of the mandibular condyle who underwent examination as per the Helkimo index. Their dysfunction was quantified and clinicoepidemiological characteristics were assessed. It was found that majority of our patients were young males involved in a two-wheeler accident. All patients underwent intermaxillary fixation as the minimum treatment and 30% underwent open reduction and internal fixation in addition.Results:There was no statistically significant association between the degree of clinical dysfunction and factors such as age, mechanism of injury, type of condyle fracture, presence of other mandible fractures, and surgical procedure. However, dislocation of the mandibular condyle was found to be a negative prognostic factor and all these patients had some degree of dysfunction.Conclusion:The overall prevalence of TMJ dysfunction according to the Helkimo index was 90%. About 61% of patients had mild dysfunction (Di1) and 30% had moderate dysfunction (Di2). None of the patients had severe dysfunction. To conclude, the Helkimo index is a simple, effective, inexpensive, reliable screening index to assess TMJ dysfunction in condylar fractures of mandible.

Prevalence of temporomandibular dysfunction in edentulous patients of Saudi Arabia

Aim: This study aimed to determine the prevalence of various temporomandibular joint dysfunction (TMD) signs in healthy asymptomatic edentulous individuals and denture wearers. Materials and Methods: Four hundred completely edentulous individuals in the age group of 45–75 years, who did not complain of any TMD and were denture bearers with varied denture-wearing span, were examined for the existence of TMD signs and symptoms. Statistical analyses were carried out with Chi-square test. Statistical significance was set at P < 0.05. Results: The total prevalence of TMD in the group was 60.5% (58.75% in males and 63.12% in females). It has been observed that more number of females (63.21%) reported signs of TMD and majority of them (23.25%) reported with two signs of TMD. The most common finding was limitation on mouth opening and the least common finding was joint sounds (crepitus and clicking). The occurrence of findings was not statistically related to edentulous span. Conclusion: The present study showed a high prevalence of signs of TMD in healthy asymptomatic completely edentulous individuals. However, the gender difference was not statistically significant.

Prevalence of temporomandibular joint dysfunction and its signs among the partially edentulous patients in a village of North Gujarat.

There is disagreement about the association between missing teeth and the presence of temporomandibular disorder (TMD). To investigate whether, the span of edentulousness, gender, number of quadrants involved, pathological migration and the type of kennedy's classification are related to the temporomandibular joint (TMJ) dysfunction signs. Clinical examination of 250 patients (males 99 and females 151) was done among the age group of 35 to 45 years. The patients were partially edentulous for 6 months or more and did not wear any kind of prosthesis. Among 250 subjects, females showed more TMJ dysfunction signs. Clicking sounds were present in 46.5%, mandibular deviation was present in 40% of individuals, TMJ tenderness was observed in 32% and masseter was involved in 32% of individual. Temporomandibular joint dysfunction signs in relation to pathologic migration of teeth show that clicking and mandibular deviation was present in 54.5 and 49.2% and among muscles masseter muscle tenderness 41.9% was more commonly present. Masseter muscle tenderness 64.1% was seen in individuals who were edentulous for more than 5 years. Females subjects had a significantly higher prevalence of TMJ dysfunction signs then male subjects. As the span and time of edentulousness, the number of missing teeth and the number of quadrant involved increased, the signs of dysfunction became more prevalent. Among the TMJ dysfunction signs deviation and clicking sound were most frequently observed. The masseter muscle was most commonly affected and demonstrated muscle tenderness.

Prevalence of temporomandibular joint dysfunction in Ehlers–Danlos syndromes

Prevalence of temporomandibular joint dysfunction in Ehlers–Danlos syndromes

The prevalence of temporomandibular joint dysfunction in the mixed dentition.

A functional and articular examination was carried out of 136 children (70 boys, 66 girls) aged from 6 to 12 years (6 years 1 month to 12 years 9 months), all presenting with a malocclusion in the mixed dentition and who had not yet received orthodontic treatment. The aim of the study was to examine the prevalence of signs of temporomandibular joint dysfunction (TMD) in this population and to evaluate the possible relationship between certain 'individual' parameters and TMD signs. The results showed an elevated prevalence of muscle tenderness, particularly in the lateral pterygoid muscle, which was found to be sensitive in 80.9 per cent of patients. Muscle tenderness had a tendency to increase with age and was greater on the right side. Temporomandibular joint sounds were present in 35.3 per cent of the subjects and more frequent in girls and in older children. Of the children who presented a mandibular deviation on maximal opening (19.8 per cent), 13.2 per cent had a predominance of opening deviation towards the left. Retruded contact position interferences were present in 57.4 per cent of the children and 72.1 per cent presented lateral and protrusive interferences. Assessment of the maximal amplitudes of mandibular movements did not reveal any limitations. These results indicate that few relationships exist between individual parameters and TMD signs.

Prevalence of temporomandibular joint dysfunction (TMJD) in Chinese children and adolescents. Across-sectional epidemiological study

The aim of this study was to investigate the prevalence of temporomandibular joint dysfunction (TMJD) in Chinese children and adolescents, and the relationship between TMJD and type of occlusion. The sample consisted of 3105 Chinese children, 3-19 years of age, divided into four groups by the stage of dental maturation. The prevalence of TMJD for the entir group was 17.9 per cent and there was no significant sex difference. TMJD increased in the mixed and early permanent dentitions, but decreased in the permanent and deciduous dentitions. In the subjects with TMJD, the most common sign was sound (87.7 per cent), followed by abnormal jaw movement (23.6 per cent), but pain was registered in 0.6 per cent only. A single sign was registered in 88.5 per cent, a combination of sound and abnormal jaw movement in 11.0 per cent, and combinations of other signs in less than 1.0 per cent. Sound as a single sign increased with the specific stages of dental development (P < 0.001).

The Prevalence of Temporomandibular joint Dysfunction Among Patients wearing Complete Dentures: Alcibiades I. Zissia, Hercules C. Karkazis, and Gregory L. Polyzois, Aust. Dent J. 1988,33:299–302

The Prevalence of Temporomandibular joint Dysfunction Among Patients wearing Complete Dentures: Alcibiades I. Zissia, Hercules C. Karkazis, and Gregory L. Polyzois, Aust. Dent J. 1988,33:299–302

Prevalence of temporomandibular joint dysfunction for 6–10 year old Japanese children with chincap-orthodontic treatment: Takehiko Mukaiyama, Hirofumi Fukazawa, Itaru Mizoguchi, and Hideo Mitani J. Jpn. Orthod. Soc. 1988;47:425–432

Prevalence of temporomandibular joint dysfunction for 6–10 year old Japanese children with chincap-orthodontic treatment: Takehiko Mukaiyama, Hirofumi Fukazawa, Itaru Mizoguchi, and Hideo Mitani J. Jpn. Orthod. Soc. 1988;47:425–432