Abstract：Tooth loss is a common oral problem, and cognitive decline is a primary manifestation of neurodegenerative diseases in the elderly. Both conditions affect their daily living abilities and quality of life. Studies have shown that tooth loss may negatively impact cognitive function through physiological mechanisms such as neural pathways and inflammatory factors, and social, psychological and behavioral factors are identified as important modifiable elements for preventing cognitive decline. This review examined literature about tooth loss and cognitive decline in the elderly, and explored the potential pathways of social, psychological and behavioral factors between these two conditions. The findings indicated that tooth loss may increase the risk of cognitive decline through reduced social participation, social isolation and limited social capital, increased chronic stress, depression and negative aging attitudes, as well as altered physical activity patterns, sleep duration and diets. For the elderly with tooth loss, targeted preventive and intervention measures addressing social, psychological and behavioral aspects can be implemented to prevent and delay cognitive decline, thereby improving their quality of life.
张宇蝶, 陈莹, 虞晓芸, 王敏 综述, 钱英 审校. 老年人牙齿缺失引起认知功能下降的社会心理行为路径研究进展[J]. 预防医学, 2025, 37(4): 365-368.
ZHANG Yudie, CHEN Ying, YU Xiaoyun, WANG Min, QIAN Ying. Research progress on the social, psychological and behavioral pathways of cognitive decline induced by tooth loss in the elderly. Preventive Medicine, 2025, 37(4): 365-368.
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