2024-03-29T14:29:01+03:30 http://3dj.gums.ac.ir/browse.php?mag_id=19&slc_lang=en&sid=1
19-248 2024-03-29 10.1002
Journal of Dentomaxillofacial doi 2016 5 4 Serum Levels of Interleukin 17 in Patients with Pemphigus and Healthy Subjects Shamsolmolouk Najafi Zohre Bijad Bita rohani Narges Gholizadeh Introduction: Pemphigus is a relatively rare autoimmune bullous disease involving skin and mucous epithelia. The disease occurs as a result of production of auto-antibodies against inter-cellular epithelia especially cadherin and desmoglein. Interleukin 17 (IL-17) is one of the specific cytokines of T helper. IL-17 plays an important role in delayed type reaction and recruits neutrophils and monocytes to the inflammation area. The other important role of this cytokine is its effect on T helper 17 cells, a certain type of CD4+ cells, leading to its key role in such autoimmune diseases.   The present study investigated the levels of IL-17 in serum among pemphigus patients in comparison with that among healthy subjects. Materials and methods: In this case-control study, blood samples (3 ml) were collected from 43 patients with pemphigus and 36 healthy subjects. Centrifuge process was done on the clotted blood samples, and the plasma was collected and preserved in -20º C. The level of IL-17 was determined through Sandwich ELISA method. T-test, Chi-square, Mann-Whitney tests, and linear regression model (P<0.05) were used for data analysis. Results: No difference existed between case and control groups regarding serum levels of IL-17 (P=0.143). The regression model showed no significant linear correlation between gender and blood level of IL-17 (P=0.164). However, blood level of IL-17 was reversely correlated to age (β=-0.0236, B=-0.029, P=0.036). Conclusion: Serum level of IL-17 could not be considered as a good marker to differentiate pemphigus from the healthy subjects. Interleukin-17 Pemphigus Serum 2016 12 01 6 10 http://3dj.gums.ac.ir/article-1-248-en.pdf 10.18869/acadpub.3dj.5.4.6
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Journal of Dentomaxillofacial doi 2016 5 4 Knowledge of Iranian dentists about cone beam computed tomography. A questionnaire study Abdolaziz Hagh negahdar Jannan Ghapanchi Ehsan Saberi Introduction: Cone beam computed tomography (CBCT), is a relatively new imaging technique in dental and maxillofacial fields, with versatile abilities and applications. If the advantage of CBCT is well understood and established; the technique will be properly applied in dental planning and treatment along with tremendous benefits to the patients. This study was designed to evaluate the knowledge of Iranian dentists about CBCT. Materials &methods: A researcher made questionnaire, including 18 questions was used to assess the knowledge of Iranian dentist participating in an international anniversary conference. Data were extracted and analyzed using SPSS software version 18.0 (SPSS Inc., Chicago, IL, USA). The student T test and spearman correlation coefficient were used to compare the relationship between knowledge scores and independent variables. The significance level was set at 0.05. Results: The mean score of knowledge about CBCT achieved by general practitioners was 7.45 and that of specialists was 8.73, which may be categorized as average. There was no significant difference in knowledge about CBCT between male and female dentists (P=0.33) and also there was no relation to age (P=0.54) and years of experience of dentists (P=0.88) in this regard. The knowledge about CBCT was higher in specialists dentists (P=0.002). Conclusion: The knowledge of Iranian general dentists about CBCT is not at ideal. Educational and post educational training programs should be considered to improve it. Knowledge Cone-Beam Computed Tomography Dentist 2016 12 01 11 16 http://3dj.gums.ac.ir/article-1-247-en.pdf 10.18869/acadpub.3dj.5.4.11
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Journal of Dentomaxillofacial doi 2016 5 4 Comparison of Working Length Determination Using Apex Locator and Conventional Radiography in Curved Canals-an In Vitro Study Elnaz Mousavi Maryam Mohajer Saem Zahra Atrkar Roshan Zahra Pourhabibi Introduction: The exact measurement of the root canal length is of great importance in root canal therapy. Although, determination of the root canal length through radiography is the most common method, recently electronic apex locators are being used to determine working length and decrease the number of radiographs. The purpose of this study was to compare the accuracy of an electronic apex locator (Root ZX) with conventional radiography to determine the working length of curved mandibular molars. Materials and methods: 35 intact mandibular first molars with rote curve above 10° were selected. The access cavity was prepared and the root canal length was measured using apex locator (Root ZX) and conventional radiography. Data was analyzed by using the paired-sample t-test.(P<0.05) Results: The working lengths measured by apex locater were equal to the actual working lengths in 42.86%, 0.5-1 mm shorter in 31.43%, and 0.5 mm longer in 25.71%. The working lengths measured by radiography were equal to the actual working length in 51.14%, 0.5-1mm shorter in 39.99% and 0.5mm longer in 2.86%. There was no significant difference between these two methods in the measurement of the working length (p=0.951). Conclusion:  The apex Locator and conventional radiography were equally effective in determining of the working length of the curved canals. Radiography Curved Canal Therapy Molar First 2016 12 01 17 22 http://3dj.gums.ac.ir/article-1-249-en.pdf 10.18869/acadpub.3dj.5.4.17
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Journal of Dentomaxillofacial doi 2016 5 4 The Agreement of Paper and Film Printed Panoramic Radiographs in Detection of Dentinal Caries Farida Abesi Fatemeh Baghbani Sina Haghanifar Soraya Khafri Introduction: Dental caries is dramatically common among people. The aim of this study was to evaluate the agreement of paper prints and film prints and monitor in detection of dentinal caries in digital panoramic radiography. Materials and methods: In this analytical study, radiographic images of 150 patients referred to a private clinic and who needed panoramic radiographs for various reasons, were used. Images were printed on paper and film. Dentinal caries in molars were classified into three categories; with caries, unknown and without caries. Data were collected in checklist and recorded in SPSS 22 Kappa coefficient rate of the data was used for obtaining agreement between the paper prints and film prints and also between monitor and film prints. Results: Kappa coefficient between the paper prints and film prints was 0.88 and between monitor and film prints was 0.92. Conclusion: According to the results of this study, paper prints could be useful in diagnosis of dentinal caries in panoramic radiographies. Caries Film Monitor Panoramic Radiography Paper Print 2016 12 01 23 25 http://3dj.gums.ac.ir/article-1-251-en.pdf 10.18869/acadpub.3dj.5.4.23
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Journal of Dentomaxillofacial doi 2016 5 4 Craniofacial fibrous dysplasia: New image findings Ava Nikbin Seiedeh Tahereh Mohtavipour Alieh Sadat Javadzadeh Haghighat Saeed dashtyari Mohammad Talebzadeh Introdouction: Fibrous dysplasia is a benign fibro-osseous lesion that affects craniofacial bones including the maxilla and mandible. In the most cases of fibrous dysplasia of facial bones, radiographic findings represent lucent or mixed radiolucent-radiopaque lesion with ill-defined borders and gradual blending of its border with adjacent bone . In this presentation, a patient suffering from Polyostotic Fibrous Dysplasia with different radiographic findings has been reported. Fibrous dysplasia Polyostotic Cone-beam computed tomography 2016 12 01 26 27 http://3dj.gums.ac.ir/article-1-253-en.pdf 10.18869/acadpub.3dj.5.4.26
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Journal of Dentomaxillofacial doi 2016 5 4 Malignant Mucosal Melanoma of the Maxillary Sinus Shirin Modabbernia Seyed Sara Bagheri Nazanin Bashardoust Sinus mucosal malignant melanoma, is a rare type of melanoma with poor prognosis which is usually occurred in the adults. This is a rare case of a 33-year-old man presenting 2-week-long headache and nasal obstruction with the emphasis on the importance of Immunohistochemical staining to help the diagnosis. Melanoma Paranasal Sinuses Neoplasms 2016 12 01 32 36 http://3dj.gums.ac.ir/article-1-252-en.pdf 10.18869/acadpub.3dj.5.4.32