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Dental Research Journal، جلد ۱۱، شماره ۶، صفحات ۰-۰
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عنوان انگلیسی The role of tobacco as an etiological agent for oral cancer:Cytomorphometrical analysis of the buccal mucosa in tobacco users
چکیده انگلیسی مقاله Background: Histopathological diagnosis of lesions arising from the intake of tobacco is based on subjective evaluation of morphological alterations within the lesional tissue. Oral exfoliative cytology is a non-invasive diagnostic technique for early detection of oral premalignant and malignant lesions. Morphometric techniques have been advocated as objective and reproducible methods of detecting changes before they are visible by routine microscopy and can facilitate differentiation of normal and abnormal epithelium. This study was conducted to assess the morphometric parameters (cell diameter, nuclear diameter and nuclear cytoplasmic ratio [N:C ratio]) in tobacco smokers and chewers and to evaluate the variations, if any. Materials and Methods: The study was conducted on cytological smears obtained from oral lesions of patients with habit of tobacco smoking (Group B) and tobacco chewing (Group C). Group A comprised of subjects free from oral lesions and not using tobacco in any form. Patients with both the habits were excluded. The smears were stained using Papanicoloaou staining method. For morphometric analysis, Microimage 3.0 image analysis software was employed. The statistical test employed was an analysis of variance and P < 0.05 was considered as signifi cant. Results: The results of this study showed that the cellular diameter was progressively reduced and nuclear diameter progressively increased from Group A to Group B to Group C. The N:C ratio also showed a progressive increase from Group A to Group C. Conclusion: The results confirmed that tobacco chewing and smoking influenced the cytomorphology of normal appearing buccal mucosa and the degree of these changes were found to be greater in chewers as compared to smokers. Key Words: Morphometry, papanicoloaou stain, tobacco chewers, tobacco smokers
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نویسندگان مقاله megha سینگ | megha singh


keya sircar | keya sircar


ankita tandon | ankita tandon


امان chowdhry | aman chowdhry


deepika bablani popli | deepika bablani popli


نشانی اینترنتی http://drj.mui.ac.ir/index.php/drj/article/view/1643
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زبان مقاله منتشر شده en
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