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Year : 2015  |  Volume : 27  |  Issue : 4  |  Page : 539-543

Evaluation of the relationship of mandibular cortical index and panoramic mandibular index with bone mineral density using panoramic radiography in postmenopausal women: A short study

Department of Oral Medicine and Radiology, Babu Banarasi Das College of Dental Sciences, Lucknow, Uttar Pradesh, India

Correspondence Address:
Dr. Gargi Saran
Department of Oral Medicine and Radiology, Babu Banarasi Das College of Dental Sciences, Lucknow, Uttar Pradesh
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0972-1363.188749

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Introduction: The problems associated with age-related skeletal osteopenia have received attention since the human skeleton undergoes a continuous physiologic decrease in bone mass with advancing age. Bone status at various sites can be assessed using dual-energy X-ray absorptiometry (DXA) or quantitative computed tomography. It would be useful to answer whether radiographic changes in the mandible indicate skeletal osteopenia. Aims and Objectives: The aim and objective of the study was to examine the mandibular cortical index (MCI) and panoramic mandibular index (PMI) on panoramic radiograph and to establish a relationship between the two indices (MCI and PMI) with the bone mineral density (BMD) in postmenopausal women. Materials and Methods: The study consisted of 15 postmenopausal women within the age group of 45-75 years. BMD was performed by DXA and measured at the lumbar spine and femoral neck and values were recorded. Panoramic radiographs of the same women were obtained for measuring MCI and PMI. There were two groups taken as C1 and C2 for determination of MCI and PMI. Results: The Pearson correlation analysis revealed a significant correlation between age and T-score (r = −0.59, P < 0.05), i.e., as age increased the T-score decreased. Comparing the T-score of two MCI groups, t-test revealed MCI was 69.1% lower in C2 as compared to C1. The value of P < 0.001 and t-test revealed significantly different and lowered (32.4%) inferior cortex level in C2 as compared to C1 (t = 4.76, P < 0.001). Conclusion: Results suggest that in this study panoramic radiography could be a reliable tool in screening for BMD.

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