THỰC TRẠNG BỆNH SÂU RĂNG VÀ VỆ SINH RĂNG MIỆNG CỦA TRẺ EM TỪ 6-15 TUỔI TẠI ĐẢO NGỌC VỪNG, TỈNH QUẢNG NINH NĂM 2025

Abstract

Objectives: To describe the prevalence of dental caries and oral hygiene status of children aged 6–15 years in Ngoc Vung Island, Quang Ninh Province in 2025. Subjects and methods: A cross-sectional descriptive study was conducted on 70 children aged 6–15. Data were collected through direct interviews using a structured questionnaire and clinical examination of oral health indices including CI-S, DI-S, OHI-S, and dmft/DMFT. Data were analyzed using Stata 16 with descriptive statistics and Chi-square and T-tests, with statistical significance set at p < 0.05. Results: Most children brushed their teeth twice daily (68.6%), though brushing techniques (75.7%) and duration (48.6%) were inadequate. About 31.4% had never received oral hygiene instruction, and 42.9% had not had a dental visit within the past year. Poor oral hygiene (OHI-S) was found in 15.7% of children. The mean dmft score was high in the 6–9 age group (10.94 ± 3.66), while the 10–15 age group had a significantly higher DMFT score (7.69 ± 4.29). The proportions of children receiving fillings or having missing teeth due to caries were very low. Conclusion: Children in Ngoc Vung Island have a high prevalence of dental caries (98.57%), with almost no carious teeth being filled and suboptimal level of oral hygiene (15.7% poor hygiene, 57.1% moderate hygiene), indicating gaps in oral health education and communication in island communities. It is necessary to conduct further longitudinal studies and to implement regular oral health communication and education programs.