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Use of cone beam computed tomography in identifying postmenopausal women with osteoporosis.

Use of cone beam computed tomography in identifying postmenopausal women with osteoporosis.
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Brasileiro CB, Chalub LL, Abreu MH, Barreiros ID, Amaral TM, Kakehasi AM, Mesquita RA,


Brasileiro CB, Chalub LL, Abreu MH, Barreiros ID, Amaral TM, Kakehasi AM, Mesquita RA, (click to view)

Brasileiro CB, Chalub LL, Abreu MH, Barreiros ID, Amaral TM, Kakehasi AM, Mesquita RA,

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Archives of osteoporosis 2017 03 0612(1) 26 doi 10.1007/s11657-017-0314-7
Abstract

The aim of this study is to correlate radiometric indices from cone beam computed tomography (CBCT) images and bone mineral density (BMD) in postmenopausal women. Quantitative CBCT indices can be used to screen for women with low BMD.

PURPOSE
Osteoporosis is a disease characterized by the deterioration of bone tissue and the consequent decrease in BMD and increase in bone fragility. Several studies have been performed to assess radiometric indices in panoramic images as low-BMD predictors. The aim of this study is to correlate radiometric indices from CBCT images and BMD in postmenopausal women.

METHODS
Sixty postmenopausal women with indications for dental implants and CBCT evaluation were selected. Dual-energy X-ray absorptiometry (DXA) was performed, and the patients were divided into normal, osteopenia, and osteoporosis groups, according to the World Health Organization (WHO) criteria. Cross-sectional images were used to evaluate the computed tomography mandibular index (CTMI), the computed tomography index (inferior) (CTI (I)) and computed tomography index (superior) (CTI (S)). Student’s t test was used to compare the differences between the indices of the groups’ intraclass correlation coefficient (ICC).

RESULTS
Statistical analysis showed a high degree of interobserver and intraobserver agreement for all measurements (ICC > 0.80). The mean values of CTMI, CTI (S), and CTI (I) were lower in the osteoporosis group than in osteopenia and normal patients (p < 0.05). In comparing normal patients and women with osteopenia, there was no statistically significant difference in the mean value of CTI (I) (p = 0.075). CONCLUSIONS
Quantitative CBCT indices may help dentists to screen for women with low spinal and femoral bone mineral density so that they can refer postmenopausal women for bone densitometry.

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