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KMID : 0896020070370020079
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Korean Journal of Oral and Maxillofacial Radiology
2007 Volume.37 No. 2 p.79 ~ p.82
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Prediction of osteoporosis using fractal analysis et cetera on panoramic radiographs
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Kim Joo-Yeon
Nah Kyung-Soo
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Abstract
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Purpose : The purpose of this study was to investigate whether panoramic radiographs were useful in predicting
osteoporosis.
Materials and Methods : 50 postmenoposal women between the age of 41.8 and 78.5 were classified as normal
and osteoporosis groups according to the bone mineral density of lumbar vertebrae. Panoramic radiographs were
taken. Age, body mass index, remaining mandibular teeth, mandibular cortical thickness and morphology, and
fractal dimensions at periapical areas of mandibular first molars were evaluated to differentiate the two groups.
Results : The age of osteoporotic group was statistically significantly higher than that of normal group (p?0.05),
but not the body mass index or number of remaining mandibular teeth. The mean fractal dimension of osteoporotic
group was 1.391±0.085, and was significantly lower than that of the normal group, which was 1.523±0.725
(p?0.01). Thick mandibular cortical thickness was common in normal group, whereas thin or very thin mandibular
cortical thickness was common in osteoporotic group and the difference was significant (p?0.05). C2 pattern was
common in normal group followed by C1, whereas C2 was common in osteoporotic group followed by C3. The
difference was statistically significant (p?0.01).
Conclusion : Age, mandibular cortical thickness and shape, fractal dimension on panoramic radiographs were
useful in predicting osteoporosis. (Korean J Oral Maxillofac Radiol 2007; 37 : 79-82)
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KEYWORD
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Osteoporosis Fractal Dimension Radiography, Panoramic
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