Quantitative Assenssment of Bone Mineral Content in Dental Radiogram

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  • Quantitative Assessment of Bone Mineral Content in Dental Radiogram

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Aluminum Equivalent (AL equivalent) image system was developed to measure the bone mineral content in mandible using conventional dental radiography, intraoral digital dental radiography and panoramic radiography by one shot dual energy subtraction method. Z-score was used as evaluation of bone changes, because of variation of normal mandibular bone of AL equivalent values by age, gender and region. For clinical application, Z-score was taken to evaluate of periapical bone changes after root canal treatment, bone changes in the around of implant, bone changes in elderly subjects, and bone changes of end stage of renal diseases. Furthermore, for application of animal experiments, AL-equivalent values were used to evaluate the effect of microgravity to the vertebral growth in growing rats, and effects on the bone mineral content by himdlimb suspension in rats.

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