摘要：Yuanbaokeng Tomb I is a CAO clan tomb located in Bozhou, Anhui Province. Many historians have studied the inscriptions on the tomb’s bricks to determine who is buried there but have yet to reach a conclusion. Recently, we recovered a heavily worn tooth from the tomb. Since tooth wear increases with age, we concluded that the tooth’s owner must over 50-55 years old. Using this data and other historical documents, we inferred that CAO Ding is most likely buried in this tomb
