SETTING

Research Ethics Committee from Universidade Federal do Rio de Janeiro (UFRJ, Brazil) approved the study protocol (approval number: 02502818.7.0000.5257, report number: 5.621.927) and an informed consent form was provided to all of guardians, allowing participation of infant/child in the study. Eligible participants who sought care at the Centro de Vigilância e Monitoramento de Traumatismos Dentoalveolares (CVMT) and at the Infant Clinic of the Department of Pediatric Dentistry and Orthodontics of School of Dentistry from UFRJ composed the study sample.

Participants’ recruitment period occurred between April 2019 and March 2020. The study aimed to evaluate participants at baseline (after premature loss, if any) and review them at follow-up visits 6 and, originally, 12 months later. However, due to the COVID-19 pandemic, participants were only evaluated at baseline (T0) and after at least 24 months (T1). Thus, data collection had to be carried out in two periods: April 2019 to March 2020; and November 2021 to April 2022.