1. Department of Stomatology, Shenzhen University General Hospital, Shenzhen 518055, China
2. Institute of Stomatological Research, Shenzhen University, Shenzhen 518055, China
3. Department of Stomatology, Shenzhen OCT Hospital, Shenzhen 518000, China
4. Department of Outpatient Stomatology, Heilongjiang Provincial Hospital, Harbin 150000, China
5. Department of Pediatric Dentistry, The First Affiliated Hospital of Harbin Medical University, Harbin 150000, China