Zhou Wei, Liu Yuhao, Yin Tao, He Mi, Fang Changyun, Peng Shifang, Liu Yundong
Health Management Center, Xiangya Hospital, Central South University, Changsha, Hunan, P.R. China.
Changjun Bilingual School, Changsha, Hunan, P.R. China.
Int Dent J. 2025 May 2;75(4):100803. doi: 10.1016/j.identj.2025.03.012.
This study investigated the associations of interdental cleaning frequency with lack of functional dentition (missing >8 teeth) and self-rated oral health status.
Data from 14,154 participants aged 30 to 80 years in 2011 to 2020 US National Health and Nutrition Examination Survey were analysed using weighted multivariate Poisson regression.
The prevalence rates of lacking functional dentition and poor self-rated oral health were 14.6% and 9.2%, respectively. 25.8% of the participants had never performed interdental cleaning, whereas 41.5% performed interdental cleaning 5 to 7 d/wk. When the never-performed interdental cleaning group was considered as reference group, the prevalence ratio and 95% confidence interval for the associations of interdental cleaning 1 to 4 and 5 to 7 d/wk with lack of functional dentition was 0.54 (0.39, 0.75) and 0.57 (0.42, 0.77), respectively, and significant interactions of interdental cleaning frequency with race, educational levels, and metabolic syndrome were observed. Notably, interdental cleaning exhibited a synergistic relationship with higher school education but an antagonistic relationship with Black ethnicity and metabolic syndrome in association with a lower prevalence of lacking functional dentition. The prevalence ratio and 95% confidence interval for interdental cleaning 1 to 4 and 5 to 7 d/wk for poor self-rated oral health was 0.54 (0.38, 0.77) and 0.43 (0.29, 0.63), respectively. Specifically, there was antagonistic interaction effect between dental visit intervals exceeding 6 months and interdental cleaning on self-rated oral health.
More frequent interdental cleaning was associated with more favourable self-rated oral health but not tooth loss. Higher education was synergistic but black ethnicity, metabolic syndrome, and long dental visit intervals were antagonistic with interdental cleaning in maintain natural teeth and better self-rated oral health. Interdental cleaning ≥5 d/wk cleaning, 6-monthly dental visits, and oral health education may decrease tooth loss and promote oral health.
本研究调查了牙间隙清洁频率与功能性牙列缺失（缺失超过8颗牙齿）及自我评估口腔健康状况之间的关联。
对2011年至2020年美国国家健康与营养检查调查中14154名年龄在30至80岁之间的参与者的数据进行加权多变量泊松回归分析。
功能性牙列缺失和自我评估口腔健康状况较差的患病率分别为14.6%和9.2%。25.8%的参与者从未进行过牙间隙清洁，而41.5%的参与者每周进行5至7天的牙间隙清洁。当将从未进行过牙间隙清洁的组作为参照组时，每周进行1至4天和5至7天牙间隙清洁与功能性牙列缺失之间关联的患病率比及95%置信区间分别为0.54（0.39，0.75）和0.57（0.42，0.77），并且观察到牙间隙清洁频率与种族、教育水平和代谢综合征之间存在显著交互作用。值得注意的是，在功能性牙列缺失患病率较低方面，牙间隙清洁与高等教育呈现协同关系，但与黑人种族和代谢综合征呈现拮抗关系。每周进行1至4天和5至7天牙间隙清洁与自我评估口腔健康状况较差之间的患病率比及95%置信区间分别为0.54（0.38，0.77）和0.43（0.29，0.63）。具体而言，超过6个月的看牙间隔与牙间隙清洁在自我评估口腔健康方面存在拮抗交互作用。
更频繁的牙间隙清洁与更良好的自我评估口腔健康状况相关，但与牙齿缺失无关。高等教育具有协同作用，但黑人种族、代谢综合征和较长的看牙间隔在维持天然牙和更好的自我评估口腔健康方面与牙间隙清洁具有拮抗作用。每周进行≥5天的牙间隙清洁、每6个月看一次牙以及口腔健康教育可能会减少牙齿缺失并促进口腔健康。
