مقايسه تاثير تداخلات دنداني و استرس بر ايجاد اختلالات تمپورومنديبولار

Comparing the Effect of Dental Interferences and Stress in Development of Temporomandibular Disorders

سابقه و هدف: اختلالات تمپورومنديبولار (TMD) گروهي از علائم و نشانه ها هستند كه به همراه درد، عملكرد ناقص TMJ و عضلات جونده تشخيص داده مي شوند. نقش فاكتورهاي اتيولوژيك نظير استرس و تداخلات اكلوزالي دراين اختلالات مورد توجه است. تحقيق حاضر با هدف تعيين فراواني اختلالات تمپورومنديبولار و رابطه آن با استرس و تداخلات اكلوزالي در مراجعين به كلينيك دانشكده ي دندانپزشكي ساري در سال هاي 94-1393 انجام شد. مواد و روش ها: در اين تحقيق توصيفي-تحليلي، 68 فرد (41 زن، 27 مرد) مراجعه كننده به مركز فوق به صورت تصادفي انتخاب شدند.تداخلات اكلوزالي در نمونه ها براساس معاينات باليني و ميزان استرس آنان با پرسشنامه اندازه گيري اضطراب تيلور بررسي و رابطه TMD با متغيرهاي مختلف از طريق آزمون هاي chi-square و exact fisher بررسي گرديد. داده هاي تحقيق با نرم افزار آماري SPSS نسخه 0/22 تحليل گرديد. يافته ها: از كل نمونه ها؛ 51 نفر (0/75درصد) TMD داشته اند. در مبتلايان TMD؛ 1 نفر (1/9درصد) استرس اندك؛ 30 نفر (58/8 درصد) استرس متوسط و 20 نفر (39/2 درصد) استرس بالا داشتند. ارتباط معني داري بين ابتلاء به TMD و استرس ديده نشد. 13/7 درصد مبتلايان به TMD تداخل centric نداشته؛ 70/6 درصد تا arch of close و 15/7درصد نيز تا line of closure تداخل داشته اند. رابطه معني داري بين ابتلاء به TMD با تداخلات سمت كارگر (0/03

Background and purpose: Temporomandibular disorders (TMD) are manifested as a group of signs and symptoms diagnosed by pain, and malfunction of temporomandibular joint (TMJ) and masticatory muscles. The role of etiologic factors such as stress and occlusal interferences has gained much attraction. In this study, we assessed the incidence of TMD and its relationship with stress and occlusal interferences in individuals attending Sari Dental School Clinic, 2014-2015. Materials and methods: In this descriptive-analytical study 68 people (41 females and 27 males) were selected. Occlusal interferences were assessed by clinical examinations and the stress levels of the participants were determined by The Taylor Manifest Anxiety Scale (TMAS). The relation between TMD and other variables were analyzed by Chi-square and exact fisher tests. Data was analyzed in SPSS V. 22. Results: Of the total population studied 51 (75.0%) had TMD. Among TMD patients one (1.9%) had low-level stress, 30 (58.8%) had moderate-level, and 20 (39.2%) were found to have high-level stress. No significant relationship was found between TMD and stress. In TMD group, 13.7% did not have centric interferences; 70.6% showed interferences up to arch of closure, and 15.7% had interferences up to line of closure. Significant relationships were found between TMD and interferences of working side (P<0.03), protrusions (P<0.0001), arch of closure interferences (P<0.03), and interferences of nonworking side (P=0.01). Conclusion: Temporomandibular disorders were found to be more prevalent among the population studied. No relations were found between TMD and stress while TMD incidence was related to some occlusal interferences.