However, adjusting for confounding factors, the control group was more likely to be edentulous, less likely to have all or more than half of their own teeth, and less likely to report excellent or very good oral health than the centenarian offspring.
This suggested to the researchers that “centenarians and their offspring have better oral health than their respective birth cohorts”.
They concluded: “Oral health may prove to be a helpful marker for systemic health and healthy aging.”
It’s worth noting that the study did not explore why this might be the case or whether there is any causal association.