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<p>To investigate the oral health status and awareness of oral hygiene practices among children aged 7–10&#xa0;years in Ngari, Tibet province, China. A cross-sectional study of first grade children aged 7–10&#xa0;years, investigated for dental examination from March 2021 to September 2021. The decayed-missing-filled tooth index (DMFT) was used to describe the severity of caries in the first molar. Oral hygiene, occlusion, dentition, and caries were analyzed. Questionnaires were distributed to investigate their oral health awareness, and 698 valid questionnaires were collected. Children’s oral hygiene is poor at this high altitude. The DMFT of the first molar was 0.57 ± 0.924 for males and 0.65 ± 0.924 for females. Additionally, the DMFts were 0.44 ± 0.785, 0.64 ± 0.920, 0.67 ± 0.926, and 0.61 ± 1.055 for aged 7–10, respectively. There was no statistically significant difference between gender and age in first molar caries. The analysis of the results found significant differences (<i>p</i> &lt; 0.01) in the oral health status of children aged 8–9 who were poor, with better results in girls. Dentition crowding differed among the different age groups (<i>p</i> &lt; 0.05). Importantly, the age of 8 was significant, but no difference in gender was observed. The occlusal relationship had no statistical difference in age and gender. The qualification rate of brushing teeth twice a day was still infrequent: 28.9% brushed less than once, 28.2% once a day, and 42.8% brushed twice daily. Brushing frequency was different (<i>p</i> &lt; 0.01) between the age groups. Local children had poor oral hygiene at this high altitude. Therefore, reasonable health education and intervention measures should be taken seriously.</p>

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A cross-sectional investigation on oral health and hygiene among children aged 7–10 years in extremely high altitude areas of China

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  • 出版模式：

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  • 发表日期：

    2025年5月12日

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  • Fan Yang,
  • Lam SuoNan,
  • Ming Gong,
  • Cheng Chen

摘要

To investigate the oral health status and awareness of oral hygiene practices among children aged 7–10 years in Ngari, Tibet province, China. A cross-sectional study of first grade children aged 7–10 years, investigated for dental examination from March 2021 to September 2021. The decayed-missing-filled tooth index (DMFT) was used to describe the severity of caries in the first molar. Oral hygiene, occlusion, dentition, and caries were analyzed. Questionnaires were distributed to investigate their oral health awareness, and 698 valid questionnaires were collected. Children’s oral hygiene is poor at this high altitude. The DMFT of the first molar was 0.57 ± 0.924 for males and 0.65 ± 0.924 for females. Additionally, the DMFts were 0.44 ± 0.785, 0.64 ± 0.920, 0.67 ± 0.926, and 0.61 ± 1.055 for aged 7–10, respectively. There was no statistically significant difference between gender and age in first molar caries. The analysis of the results found significant differences (p < 0.01) in the oral health status of children aged 8–9 who were poor, with better results in girls. Dentition crowding differed among the different age groups (p < 0.05). Importantly, the age of 8 was significant, but no difference in gender was observed. The occlusal relationship had no statistical difference in age and gender. The qualification rate of brushing teeth twice a day was still infrequent: 28.9% brushed less than once, 28.2% once a day, and 42.8% brushed twice daily. Brushing frequency was different (p < 0.01) between the age groups. Local children had poor oral hygiene at this high altitude. Therefore, reasonable health education and intervention measures should be taken seriously.