Dang, Q. V.; Dang, V. Q.; Ngo, T. T. H.; Nguyen, P. T. T.; Nguyen, T. N. Y.; Nguyen, T. N. DENTAL CARIES AND ORAL HYGIENE STATUS AMONG STUDENTS AT VO TRUONG TOAN ELEMENTARY SCHOOL, NINH KIEU DISTRICT, CAN THO CITY IN 2021. ctump 2023, 98-104.