1Research Sciences and Health Institute of Kinshasa, Kinshasa, DR Congo.
2Oral and Maxillofacial Surgery, Department of Dental Medicine, Affiliated Hospital of Kinshasa University, Kinshasa, DR Congo.
3Department of Pediatrics, General Reference Hospital of Kintambo, Kinshasa, DR Congo.
4Prosthodontics and Orthodontics Service, Department of Dental Medicine, Affiliated Hospital of Kinshasa University, Kinshasa, DR Congo.
5Department of Oral and Maxillofacial Surgery, Second Affiliated Hospital of Jiamusi University, Heilongjiang, China.
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