Kurumun Atıf Alan Makalesi
Atıf Alan Yayın
The differences in panoramic mandibular indices and fractal dimension between patients with and without spinal osteoporosis
Scopus
Toplam 149 atıf DOI
Objectives: The aims of this study were to evaluate the relationship between osteoporosis, oral signs, body mass index and age; and to assess the possibility of using these parameters as an indicator of post-menopausal osteoporosis. The oral signs were panoramic-based mandibular indices, such as cortical width, cortical index, panoramic mandibular index and mandibular crest resorption degree; the number of teeth and fractal dimension analysis. Methods: Forty-eight post-menopausal women between the ages of 40 years and 64 years were evaluated. Mandibular indices and the number of mandibular teeth were measured and evaluated from panoramic radiographs and fractal dimension was calculated from the direct digital periapical radiographs of the mandibular premolar-molar region in box-counting method. Weight, height, menopausal status and age of the patients were recorded by questionnaire. Bone mineral densities of the patients were measured with dual energy X-ray absorptiometry. Results: In this study there were no statistically significant differences between the osteoporotic and non-osteoporotic patients for cortical width, panoramic mandibular index, alveolar crest resorption degree, fractal dimension and the number of mandibular teeth, but there was a difference for cortical index. Binary logistic regression analyses demonstrated that age (P = 0.015) was an important risk factor for osteoporosis. Conclusion: The results of this study demonstrated that osteoporotic patients were more likely to have altered inferior cortex morphology than non-osteoporotic patients and age is an important risk factor for osteoporosis. © 2006 The British Institute of Radiology.
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Atıf Yapan Yayın
Mandibular cortical index evaluation in masked and unmasked panoramic radiographs
Scopus
Havuzumuzda 8 atıf almış
Objectives: The first aim of this study was to evaluate intra-and interobserver agreement in evaluating the mandibular cortical index (MCI) in masked and unmasked panoramic radiographs. The second aim was to evaluate the effect of previous experience of MCI classification on the observers' performance. Methods: Three observers separately evaluated MCI, twice in masked and twice in unmasked panoramic radiographs, with 2 week intervals. The observations were repeated more than 9 months later. The second and third observers were inexperienced in evaluating MCI. Weighted kappa statistics were used to evaluate the inter- and intraobserver agreement. Results: In the first session of the study, the kappa values for intraobserver agreements in masked panoramic radiographs were between 0.565 and 0.789; in unmasked panoramic radiographs, they were between 0.420 and 0.732. The kappa values for interobserver agreement were between 0.131 and 0.392 in masked radiographs and between 0.043 and 0.225 in unmasked radiographs. In the second session of the study, the kappa values for intraobserver agreements in masked panoramic radiographs were between 0.586 and 0.786. The kappa values for intraobserver agreements in unmasked panoramic radiographs were between 0.558 and 0.781. The kappa values for interobserver agreement were between 0.146 and 0.510 in masked radiographs and between 0.174 and 0.568 in unmasked radiographs. Conclusions: Masking has no effect on the evaluation of panoramic radiographs for MCI. Previous experience causes higher intraobserver agreement. Intra- and interobserver agreement increases along with the increased experience in MCI evaluations. © 2009 The British Institute of Radiology.
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Kurumlar (1)
Selçuk Üniversitesi
Selçuklu, Turkey