Affiliation: | 1. Department of Stomatology, The First People's Hospital of Lianyungang City, Lianyungang, Jiangsu, China;2. Department of Stomatology, The Affiliated Huai'an Hospital of Xuzhou Medical University and The Second People's Hospital of Huai'an, Huai'an, China;3. Department of Prosthodontics, School and Hospital of Stomatology, Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai, China;4. Department of Oral and Cranio‐Maxillofacial, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China |