Showing 4 results for Temporomandibular Joint Disorders
S Salimzadeh, H Sheykhnezhad, Z Zohri, P Salimzadeh,
Volume 4, Issue 3 (9-2019)
Abstract
Background and Aim: Patients affected by thalassemia major show great skeletal changes in the head and neck area in addition to malocclusion. It seems that examination of malocclusion in these patients and evaluation of the frequency of temporomandibular disorders (TMD) can help identify people with a high risk of illness in the society. The current study aimed to compare the frequency of TMD between β-thalassemia major patients and high school and guidance school students.
Materials and Methods: In this descriptive-analytical study, 51 patients affected by thalassemia major (23 girls and 28 boys) and 78 normal (43 girls and 35 boys) guidance and high school students between 12 and 18 years old were evaluated. The presence of TMD and malocclusion and their relationship were determined. After examination and completion of the related questionnaire, data were analyzed by chi-square test and t-test using SPSS software.
Results: According to the data, there was no significant difference in spacing, occlusion, crowding, open bite, headache, bruxism, crepitation, clicking, TMD, subluxation, locking, cleaning, deviation, deep bite, and crossbite between the control and thalassemia students (P>0.05). However, significant differences were observed regarding overjet and pain (P<0.05).
Conclusion: These results suggest that TMD and occlusion type have no significant correlation with thalassemia.
F Fattahi, S Haghighat, N Babaei, Z Aminkhaki, F Khajavi, K Torabi,
Volume 5, Issue 1 (2-2020)
Abstract
Background and Aim: Temporomandibular disorder (TMD) is a multifactorial problem caused by many reasons. There is still controversy about the effect of different types of occlusal disorder on TMD. This study was designed to determine the effects of centric and assisted and unassisted non-working interferences on TMD.
Materials and Methods: In this cross-sectional study, 100 dental students, including 64 males and 36 females with the age range of 18 to 24 years old, were examined. Subjects with a history of systemic or muscular diseases and orthodontic treatment were excluded. TMD signs and symptoms including maximum mandibular opening limitation, maximum lateral movement limitation, maximum protrusion limitation, deviation and deflection, joint pain and tenderness, joint sounds, and masticatory muscle tenderness were examined. Subjects were also examined for having centric interferences and eccentric interferences including assisted and unassisted non-working interferences. Data were analyzed using the chi-square test and independent-sample T-test.
Results: Subjects with centric interference had a significantly higher number of clicks (P=0.02), medial pterygoid tenderness (P=0.009), and right medial pterygoid tenderness (P=0.007). We could also find a significantly higher number of clicking in subjects with assisted non-working interference (P=0.002).
Conclusion: The findings of the present study suggest that different types of occlusal interference, specially centric and assisted non-working interferences, can lead to TMD signs and symptoms.
Saeid Mahmoudian, Sareh Farhadi, Maryam Hosseinzadeh,
Volume 8, Issue 2 (4-2023)
Abstract
Background and Aim: Multiple studies have shown the common co-occurrence of tinnitus and temporomandibular disorders (TMDs). This study assessed the effectiveness of a conservative treatment for TMD signs and symptoms of six patients with tinnitus-related complaints.
Materials and Methods: Six patients with persistent non-pulsatile tinnitus were evaluated in this case series. The tinnitus characteristics evaluated included pitch and loudness matching (PMT-LMT), minimum masking level (MML), and residual inhibition (RI). In addition, the Persian versions of the 52-item Tinnitus Questionnaire (TQ), the Tinnitus Handicap Inventory (THI), and the Steigerwald/Maher TMD Disability Index (SMTDI) were used. The corresponding TMD treatment plan was subsequently implemented, taking into account the subtype of the disease. The data were statistically analyzed at 0.05 level of significance.
Results: The mean SMTDI score significantly decreased after treatment (P=0.0001) and the symptoms of TMD effectively resolved. Comparison of visual analog scale (VAS) scores of tinnitus patients before and after TMD therapy indicated statistically significant changes (P<0.05) in intensity, irritation, and awareness. Comparison of the mean tinnitus evaluation test scores before and after TMD therapy in tinnitus patients indicated a significant change only in PMT (P=0.039). Comparison of THI and TQ scores before and after TMD therapy revealed significant changes in tinnitus patients (P<0.05). |
Conclusion: In case of correct selection of patients with concurrent somatosensory tinnitus and TMD signs and symptoms, TMD therapy might alleviate this condition, according to the present findings. Consequently, a multidisciplinary approach may be useful in treatment of such cases.
Sahar Mafi, Farhad Ghahremani, Mahmood Rahmani, Arezoo Alaee,
Volume 9, Issue 2 (6-2024)
Abstract
Background and Aim: The Graded Chronic Pain Scale version 2.0 (GCPS 2.0) has no Persian version for use on the Iranian population. Thus, this study aimed to validate the Persian version of this scale.
Materials and Methods: The cross-sectional study was conducted on 160 patients with chronic pain who filled out the GCPS 2.0. The 8-item self-report GCPS 2.0 was first translated to Persian. The validity of its Persian version was examined by a group of 7 expert specialists and calculation of the content validity index. The test-retest method was used to measure the reliability of the Persian version of GCPS 2.0. The Bartlett's test, KMO index, and exploratory factor analysis were used to confirm its construct validity. The internal consistency of the questions was analyzed by calculation of Cronbach's alpha coefficient and item-scale correlation coefficient, and retesting. The relationship between the questionnaire score and demographic information of the participants was analyzed (alpha=0.05).
Results: The content validity coefficient was 0.98. The test-retest coefficient was 0.98, indicating high reliability of the questionnaire. The mean age of the participants was 38 years, and 81 (50.6%) were males. Education was found to have a significant correlation with the total questionnaire score (P<0.05) but age had no such correlation (P>0.05).
Conclusion: The Persian version of the GCPS 2.0 with the omission of questions 1 and 5 may be used for assessment of chronic pain in the temporomandibular joint (TMJ) area in the Iranian population.
