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. 2023 Jul 27;45(1):25. doi: 10.1186/s40902-023-00390-w

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Fig. 3 — Method for measuring bone density using panoramic radiographs. A Postoperation 1st visit defect region. B Postoperation 2nd visit defect region. C Postoperation 1st visit surrounding bone. D Postoperation 2nd visit surrounding bone