The Prevalence and Association of Signs and Symptoms of Temporomandibular Disorders with Missing Posterior Teeth in Adult Jordanian Subjects

Abstract

Objectives: To determine the prevalence of temporomandibular disorders (TMD) in adult Jordanian subjects with missing posterior teeth and the association of signs and symptoms of TMD with missing posterior teeth. Methods: A questionnaire and clinical examination were used to assess 93 subjects who accepted to participate in this study and were selected according to specific inclusion criteria. They were asked about TMD-related symptoms (pain or tenderness in the jaw joint and/or muscles of mastication, joint sounds, limitation of jaw movement, clenching or grinding habits) and examined clinically for missing teeth, and for TMD-related signs (tenderness in masticatory muscles and in temporomandibular joint, clicking or crepitus sounds, limitation of mandibular movement, attrition in the existed remaining teeth). The mean number of missing teeth were calculated, compared and correlated with TMD signs and symptoms in relation to age and genders. Data were analyzed using SPSS (v. 17) and statistical significance was set at P<0.05. Results: There were 37 (39.8%) men and 56 (60.2%) women; the mean age was 54.43±11.87 (ranged between 31 and 78) years. Eighty-five (91.4%) subjects had TMD-related signs or symptoms, 32.3% reported symptoms and 59.1% had signs, two-thirds were women. The mean number of missing teeth was 11.40±3.13, men significantly (p<0.05) had more missing teeth compared to women, however, significantly (p<0.01) more women reported TMD symptoms than men. Posterior teeth loss increased with increasing age. With age, TMD symptoms decreased and signs increased. Logistic regression analyses showed that teeth loss was significantly associated with TMD subjective symptoms; reported joint sounds (p<0.05), chewing difficulty (p<0.05) and with chewing side preference (p=0.001). Logistic regression analyses showed that teeth loss was significantly associated with TMD objective signs; clicking (p<0.01) and crepitus (p>0.001) TMJ sounds, unilateral TMJ tenderness (p=0.01), the pterygoid muscles tenderness (p<0.01) and teeth wear (p<0.05). Conclusion: Loss of posterior teeth is significantly associated with TMD signs and symptoms. In the group studied more women than men reported TMD symptoms and both male and female subjects were found to have TMD signs which were more common in men.

Temporomandibular joint disorder predisposing factors and clicking

“…9 In this study no relationship between clicking and missing teeth were found and this claimed that logistic regression analysis explained that missing teeth was majorly connected with TMDs and clinical sign of joint sound. 10 The results of this study coincide with the hypothesis that the exact etiology of TMDs is still obscure, and there is a lack of a clear single cause of TMDs, specially clicking, and a multifactorial etiology has been thus proposed.…”

Potential number of tooth losses in clicking, popping and crepitation of Temporomandibular Disorders (TMD) in elderly

“…Osteoarthrosis is one of the degenerative joint diseases on the articular surface that is often found in the elderly. 17 Manchikalapudi et al 28 in his study stated that the loss of support in posterior teeth is also considered to significantly increase the risk of osteoarthrosis. Osteoarthrosis has an uneven articular surface appearance due to fibration, erosion, and cracks in the superficial layer of cartilage in the TMJ.…”

“…Adjustment of new functional chewing can cause changes in the trajectory of the TMJ movement. 17 In normal joint movement, the disc is located directly on the head of the condyle. The articular disc will be between the mandibular condyle and the posterior slope of the articular eminence in the normal functional state when the jaw closes.…”

Uji Validitas Dan Reliabilitas Kuesioner Gejala Tmd (SQ TMD) Pada Populasi Usia 19-21 Tahun Di Jabodetabek (Penelitian)

“…Gangguan temporomandibula (TMD) adalah istilah umum untuk berbagai tanda dan gejala klinis yang melibatkan otot pengunyahan, sendi temporomandibular (TMJ) dan struktur orofasial yang terkait. 1 Gangguan temporomandibula memiliki gejala klinis yang dapat berupa rasa nyeri pada sendi wajah, nyeri pada sendi rahang, bunyi pada sendi mandibula, kesulitan dalam menutup dan membuka mulut, rasa tidak nyaman ataupun rasa nyeri ketika menggigit atau mengunyah makanan, serta gerak rahang yang terbatas. 2 TMD dengan rasa nyeri dapat mengganggu aktivitas sehari-hari, fungsi psikososial, dan kualitas hidup.…”