1. Department of Prosthodontics, Shanghai Ninth People’s Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, P. R. China
2. Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai 200062, P. R. China
3. Jiaxing CeramPlus Technology Co. Ltd., Jiashan 314100, Zhejiang, P. R. China