Anterior mandible has the highest mean bone density and posterior maxilla has the lowest mean bone density.

下颌前牙区平均骨密度值最大，上颌后牙区平均骨密度值最小。

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Anterior mandible has the highest mean bone density and posterior maxilla has the lowest mean bone density.

下颌前牙区平均骨密度值最大，上颌后牙区平均骨密度值最小。

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