[1
]
Doctoral candidate, State Key Laboratory of Oral Diseases, National Clinical Research
Center for Oral Diseases, and Department of Prosthodontics, West China Hospital of
Stomatology, Sichuan University, Chengdu, PR China.
[2
]
Resident Doctor, Aerospace Center Hospital, Beijing, PR China.
[3
]
Professor, State Key Laboratory of Oral Diseases, National Clinical Research Center
for Oral Diseases, and Department of Prosthodontics, West China Hospital of Stomatology,
Sichuan University, Chengdu, PR China. Electronic address: YHYmechanics@163.com.