1. Department of Prosthodontics; Oral Bioengineering and regenerative medicine Lab; Ninth People's Hospital affiliated to Shanghai Jiao; Tong University; School of Medicine; 639 Zhizaoju Road Shanghai 200011 China
2. Clinical Research Center; Shanghai Jiading Central Hospital; 1 Chengbei Road Shanghai 201800 China
3. Department of Plastic and Reconstructive Surgery; Shanghai Key Laboratory of Tissue Engineering; Shanghai 9th People's Hospital; Shanghai Jiao Tong University School of Medicine; 639 Zhizaoju Road Shanghai 200011 China
4. Department of Bio-Nano Science and Engineering; Key Laboratory for Thin Film and Microfabrication of Ministryof Education; Research Institute of Micro/Nano Science and Technology; Shanghai Jiao Tong University; Shanghai 200240 China