Taking good care of your teeth may be linked to better brain health, according to a study published in the July 5, 2023, online issue of. The study found that gum disease and tooth loss were linked to brain shrinkage in the hippocampus, which plays a role in memory and Alzheimer's disease. The study does not prove that gum disease or tooth loss causes Alzheimer's disease; it only shows an association.
The study involved 172 people with an average age of 67 who did not have memory problems at the beginning of the study.brain scansFor each participant, researchers counted the number of teeth and checked for gum disease by looking at periodontal probing depth, a measurement of the gum tissue. Healthy readings are from one to three millimeters.
For people with mild gum disease having fewer teeth was associated with a faster rate of brain shrinkage in the left hippocampus. However, for people with severe gum disease having more teeth was associated with a faster rate of brain shrinkage in the same area of the brain.
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