Yang Fan, SuoNan Lam, Gong Ming, Chen Cheng
Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research; Laboratory Center of Stomatology; Third Outpatient Department, College of Stomatology, Xi'an Jiaotong University, Xiwu Road 98#, Xi'an, 710004, Shaanxi Province, People's Republic of China.
Department of Stomatology, Ngari Prefecture People's Hospital, Ngari, Tibet Province, People's Republic of China.
Sci Rep. 2025 May 12;15(1):16460. doi: 10.1038/s41598-025-99110-9.
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.
为调查中国西藏自治区阿里地区7至10岁儿童的口腔健康状况及口腔卫生习惯认知情况。对7至10岁一年级儿童进行了一项横断面研究，于2021年3月至2021年9月进行了口腔检查。采用龋失补指数（DMFT）描述第一恒磨牙的龋病严重程度。对口腔卫生、咬合、牙列和龋病进行了分析。发放问卷以调查他们的口腔健康意识，共收集到698份有效问卷。在这个高海拔地区，儿童的口腔卫生状况较差。男性第一恒磨牙的DMFT为0.57±0.924，女性为0.65±0.924。此外，7至10岁儿童的DMFts分别为0.44±0.785、0.64±0.920、0.67±0.926和0.61±1.055。第一恒磨牙龋病在性别和年龄之间没有统计学上的显著差异。结果分析发现，8至9岁贫困儿童的口腔健康状况存在显著差异（p<0.01），女孩的情况较好。不同年龄组的牙列拥挤情况不同（p<0.05）。重要的是，8岁时差异显著，但未观察到性别差异。咬合关系在年龄和性别上没有统计学差异。每天刷牙两次的达标率仍然很低：28.9%的人刷牙次数少于一次，28.2%的人每天刷牙一次，42.8%的人每天刷牙两次。各年龄组之间的刷牙频率不同（p<0.01）。当地儿童在这个高海拔地区口腔卫生状况较差。因此，应认真采取合理的健康教育和干预措施。
