A newly published study adds a compelling reason to maintain your dental hygiene: It may be linked to your brain health and mental decline.
The study, which appeared in the July 5, 2023 online issue of Neurology, the medical journal of American Academy of Neurologyexplores the possible connection between brain health and dental health.
Research has found that common dental problems, such as gum disease and tooth loss, could be related to shrinkage in the hippocampus, a part of the brain involved with memory and Alzheimer’s disease.
It is important to note that the study does not claim that these dental problems cause Alzheimer’s disease. However, it has certainly shown a strong connection.
Satoshi Yamaguchi, PhD, DDS, the study’s author from Tohoku University in Sendai, Japan, explained the significance of the findings.
“Tooth loss and gum disease are very common, so evaluating a potential link to dementia is incredibly important,” Yamaguchi said. He added, “Our study found that these conditions may play a role in the health of the area of the brain that controls thinking and memory, giving people another reason to take better care of their teeth.”
How the dental hygiene study was carried out
The study involved 172 participants, all around the age of 67, and none of them reported memory problems at the start of the study. All underwent dental examinations and memory tests. Their hippocampus volume was measured through brain scans at the start of the study and again four years later.
The researchers assessed the participants’ dental hygiene and health by measuring their teeth and measuring the depth of their gum tissue, a key indicator of gingivitis. Healthy gums are usually one to three millimeters deep.
Mild gingivitis is characterized by measurements of three to four millimeters in many areas, while severe gingivitis includes measurements of five to six millimeters, accompanied by more bone loss, leading to loose teeth and possible tooth loss.
What did the scientists discover?
The research found a relationship between the number of teeth and the severity of gum disease with changes in the left hippocampus of the participants’ brains.
Interestingly, in subjects with mild gingivitis, fewer teeth were associated with cognitive decline from faster shrinkage in the left hippocampus. Conversely, in people with severe gingivitis, more teeth were associated with faster shrinkage in the same area.
In terms of brain aging, the researchers found that for people with mild gingivitis, each tooth lost accelerated the rate of brain shrinkage, equivalent to nearly a year of brain aging. However, for those with severe gingivitis, each additional tooth corresponded to a faster rate of brain shrinkage, equivalent to 1.3 years of brain aging.
Yamaguchi emphasized the implications of these findings. “These results highlight the importance of maintaining dental health and not just maintaining teeth,” he said.
Poor dental hygiene and gum disease are linked to mental decline
The results of the study suggest that the retention of teeth suffering from severe gum disease may be linked to brain atrophy. Yamaguchi emphasized the importance of regular dental checkups to control the progression of gum disease. Teeth severely affected by gingivitis may need to be extracted and replaced with suitable prosthetic devices.
As promising as these findings are, Yamaguchi admits that more research is needed, preferably involving larger groups of participants. He also noted the geographical limitation of the study, as it was only conducted in one area of Japan, and therefore the results may not be applicable to other populations.
The research was funded by several Japanese institutions, including the Ministry of Education, Culture, Sports, Science and Technology. Keio University; Japan Atherosclerosis Prevention Fund; Ministry of Health, Labor and Welfare. Teikyo University; and various pharmaceutical companies and institutions.
Essentially, this study shows that taking care of your teeth goes beyond maintaining a bright smile. It can also be an important factor in keeping your brain healthy.
Practicing good dental hygiene will potentially prevent mental decline, helping to prevent diseases such as Alzheimer’s. So make sure you keep up with your dental hygiene and regular check-ups. your brain may thank you for it.
More about oral hygiene
Oral hygiene, also known as oral hygiene, refers to the practice of keeping the mouth and teeth clean to prevent dental problems such as tooth decay, gum disease, and bad breath.
Good oral hygiene is essential for overall health. Research has linked poor oral health to a variety of conditions including heart disease, diabetes and Alzheimer’s. Here are some important aspects to consider:
Brushing
This is the cornerstone of good oral hygiene. You should brush your teeth at least twice a day. Ideally in the morning and before bed, using a soft-bristled toothbrush and fluoride toothpaste.
The toothbrush should be held at a 45 degree angle to the gums. Brushing should cover all surfaces of the teeth, making gentle, circular movements. Brushing your tongue is also vital as it can harbor bacteria and contribute to bad breath. Remember to replace your toothbrush every three to four months, or sooner if the bristles are frayed.
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Flossing removes food particles and plaque that your toothbrush can’t reach. It should be done once a day, usually before bed. To use yarn properly, you should use an 18 inch piece of yarn. Wrap most of it around your middle fingers, then gently slide it between the teeth, following the curve of each tooth to avoid gum damage.
Washing
After brushing and flossing, rinsing the mouth with water or mouthwash helps remove any remaining particles. Some mouthwashes also contain ingredients to fight bacteria and freshen breath.
Diet
Eating a balanced diet can contribute to good dental health. Try to limit sugary foods and drinks, as sugar promotes the growth of bacteria that cause tooth decay. Foods high in calcium and phosphorus, such as milk, cheese and lean meats, can help keep your teeth strong.
Regular visits to the dentist
Regular check-ups and cleanings by a dentist are essential, usually every six months. Although the frequency may vary depending on your individual dental health. These visits can help detect problems early, when they are easier and less expensive to treat. They can also remove tartar, a hardened form of plaque that cannot be removed by regular brushing and flossing.
Avoiding Smoking
Tobacco, both smoked and smokeless, can lead to gum disease, tooth discoloration, bad breath, and oral cancer. Quitting tobacco use can significantly reduce these risks.
Remember, dental hygiene is not just about having a beautiful smile. it is an important part of your overall health. Practice good oral hygiene habits every day and your teeth and body will thank you.
