older adults who are socially isolated are more likely to lose teeth, according to
new research from new york university
. but being isolated doesn’t necessarily mean those people are lonelier.
the research looks at data from china, where adults between the ages of 65 and 74 have fewer than 23 teeth — significantly lower than the typical 32 teeth that a normal adult would have. (adults who have gotten their wisdom teeth out typically have 28 teeth.) nearly five per cent of elderly people in china have lost all their teeth.
socially isolated people lose more teeth
over seven years, nyu scientists examined information from 4,268 people aged 65 and over. they found that more than a quarter of the study’s participants — 27.5 per cent — said they were socially isolated. those people were more likely to report losing teeth more quickly, and have fewer teeth in general, even after researchers adjusted for general health, oral hygiene, and smoking and drinking levels. of the people surveyed, those who were socially isolated had an average of 2.1 fewer natural teeth. they also lost teeth at 1.4 times the rate of people with more social connections.
“socially isolated older adults tend to be less engaged in social and health-promoting behaviours like physical activity, which could have a negative impact on their overall functioning and oral hygiene,” senior study author bei wu
told nyu’s news outlet
. “this functional impairment seems to be a major pathway linking social isolation to tooth loss.”