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Learn more: PMC Disclaimer 上海牙组织修复与再生工程技术研究中心，同济大学口腔医学院，同济大学附属口腔医院口腔修复教研室，上海 200072, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Dept. of Prosthodontics, School & Hospital of Stomatology, Tongji University, Shanghai 200072, China