Funding for this research was provided by:
Universitas Indonesia (NKB-1609/UN2.RST/HKP.05.00/2020)
Received: 10 July 2020
Accepted: 16 October 2020
First Online: 29 October 2020
Ethics approval and consent to participate
: Students participated voluntarily in the study following the official invitation. Data confidentiality was protected. Dental Research Ethics Committee Faculty of Dentistry Universitas Indonesia approved the study in accordance with the Helsinki Declaration (Ethical Approval Letter No.6/EA/FKGUI/VI/2020). Students were informed about the study and signed consent form.
: The authors declared that they have no competing interests.