1. Department of Oral Implant School & Hospital of Stomatology Shanghai Engineering Research Centre of Tooth Restoration and Regeneration Tongji University Shanghai China
2. Department of Pathology School & Hospital of Stomatology Shanghai Engineering Research Center of Tooth Restoration and Regeneration Tongji University Shanghai China
3. Department of Endodontics School & Hospital of Stomatology Shanghai Engineering Research Centre of Tooth Restoration and Regeneration Tongji University Shanghai China