1. School and Hospital of Stomatology, Fujian Medical University, Fuzhou, Fujian, China (mainland)
2. Department of Orthodontics, Bernhard Gottlieb University Clinic of Dentistry, Medical University of Vienna, Vienna, Austria
3. Competence Centre of Periodontal Research, Bernhard Gottlieb School of Dentistry, Medical University of Vienna, Vienna, Austria
4. The Austrian Cluster for Tissue Regeneration, Ludwig Boltzmann Institute for Experimental and Clinical Traumatology/Austrian Workers’ Compensation Board (AUVA) Research Center, Vienna, Austria