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10/19/2007 Reporter: Li Peilian
To avoid dementia in old age, it might help to take good care of your teeth! A recent U.S. study found that if you have fewer than ten teeth or no teeth at all in your mouth, the likelihood of developing dementia in old age increases significantly!
Opening her mouth reveals only a few remaining teeth. At 78 years old, Mrs. Jian began losing her teeth in her sixties and soon after developed dementia. Could bad teeth really be the cause of dementia? After tracking over 140 nuns for a long period, the University of Kentucky discovered that those with fewer than nine teeth or no teeth at all had a 2.2 times higher risk of developing dementia in old age compared to nuns with healthy teeth.
Taiwanese doctors speculate that inflammatory substances in the teeth might cause brain damage! Therefore, to prevent dementia, doctors suggest paying more attention to oral hygiene and taking good care of your teeth while you're young. Of course, it's also crucial to manage chronic diseases and quit smoking promptly, as studies show that patients with diabetes, hypertension, and smokers are all high-risk groups for dementia. Regularly eating more vegetables, fruits, and deep-sea fish are essential strategies to stay away from dementia.
Source: http://www. ttv. com. tw/ 096/ 10/ 0961019/ 09610194674405L. htm
July 20, 2007, Huang Lihui
A Swedish research report reveals that when a painful tooth is extracted, part of a person's memory is also "extracted." People with missing teeth have significantly poorer memory than those with intact teeth, and tooth loss may be one of the reasons why the elderly are prone to amnesia.
To conduct this study, starting from 1988, researchers from Umeå University in Sweden tracked 1,962 volunteers aged 35 to 90 over a period of 15 years. They compared the memory of volunteers with intact teeth to those who had all their teeth extracted and used dentures. Scientists found that, under similar conditions in all other factors such as education, age, and medical history, individuals with intact teeth had significantly better memory than those who had their teeth extracted.
Jan Berghdal, an associate professor of psychology at Umeå University, said, "We were also very surprised by this result. This could be a breakthrough in the study of elderly dental health and amnesia." Berghdal, a dentist, is also one of the authors of the report.
He also pointed out that their study is the first large-scale research of its kind on humans, following previous experiments on animals. The results indicate that tooth extraction can sever the nerves connecting the teeth to the brain, thereby affecting memory.
This finding aligns closely with recent results from Japanese scientists studying the relationship between teeth and memory in mice. Japanese scientists discovered that mice with extracted teeth had significantly worse memory of food compared to mice with intact teeth.
To date, this study has not fully explained how tooth extraction affects human memory. It may be because teeth have many nerves connected to the brain, and when teeth are extracted, these nerves disappear accordingly.
Source: People's Daily Overseas Edition
http:/ / big5. ce. cn/ gate/ big5/ ……/ 20/ t20070720_12246256. shtml
If all the teeth have fallen out, where does the "inflammatory substance in the teeth" come from? Are the doctors who make such inferences also toothless? 
I once read about an animal experiment in a book: half of the teeth of the experimental mice were extracted, leaving the other half intact. After raising them normally for a while, the mice were dissected and examined. It was found that the side of the brain corresponding to the extracted teeth had atrophied. Below are a few similar claims↓
"A nutritionist extracted all the left teeth of a small monkey, leaving the right teeth intact. Half a year later, the right side of the monkey's brain, where the teeth were intact, developed normally, while the left side of the brain, where the teeth were missing, had already atrophied. This experiment proves that the brain will degenerate and atrophy if not stimulated. When a person chews hard objects or increases the speed of chewing, the blood flow to the brain significantly increases, and the difference in brain blood flow between elderly people with and without teeth can be as much as 30%. Good chewing function ensures blood supply to the brain and maintains normal brain activity."
Source: http://www. babyschool. com. cn/ ask/ detail_number_30403. html
"The decline in the function of hippocampal cells in the brain is the histological reason for the decline in memory in the elderly. A study by Nihon University showed that 'chewing may prevent memory decline in the elderly.' Researchers extracted the molars of a group of adult mice and young mice to impair their chewing function; another group of adult mice and young mice were left untreated and allowed to develop naturally as a control group. After feeding both groups the same food, they were subjected to a maze experiment. The results showed that the memory of the group with extracted molars was significantly worse than that of the other group. Inspired by this experimental result, researchers used magnetic resonance imaging technology to observe that the activity signals in the hippocampus of the brain increased during chewing. Therefore, they believe that chewing gum is a good method to stimulate hippocampal function without increasing food intake, which helps prevent senile dementia."
Source: http:/ / iask. sina. com. cn/ brow……% B9% B4% E7% 97% B4% E5% 91% 86. doc
From the above research, it is clear that: Take good care of your teeth and do not extract them casually to avoid premature dementia . Dentists who casually extract others' teeth are also committing a sin.
Classical Chinese medicine believes that "teeth are the surplus of bones," and "the kidneys govern bones and generate marrow." Strong kidney qi leads to healthy bones, strong teeth, and a sharp mind. Whether it is due to old age and the decline of kidney qi, which cannot nourish the bone marrow, leading to tooth loss and memory decline, still requires further research. Additionally, research could be conducted on whether the number of teeth lost is related to the degree of osteoporosis, to prove the theory of "the kidneys governing bones" in Chinese medicine.
Study: Tooth Loss Linked to Dementia; Doctors Suggest Inflammatory Damage to Brain
To avoid dementia in old age, it might help to take good care of your teeth! A recent U.S. study found that if you have fewer than ten teeth or no teeth at all in your mouth, the likelihood of developing dementia in old age increases significantly!
Opening her mouth reveals only a few remaining teeth. At 78 years old, Mrs. Jian began losing her teeth in her sixties and soon after developed dementia. Could bad teeth really be the cause of dementia? After tracking over 140 nuns for a long period, the University of Kentucky discovered that those with fewer than nine teeth or no teeth at all had a 2.2 times higher risk of developing dementia in old age compared to nuns with healthy teeth.
Taiwanese doctors speculate that inflammatory substances in the teeth might cause brain damage! Therefore, to prevent dementia, doctors suggest paying more attention to oral hygiene and taking good care of your teeth while you're young. Of course, it's also crucial to manage chronic diseases and quit smoking promptly, as studies show that patients with diabetes, hypertension, and smokers are all high-risk groups for dementia. Regularly eating more vegetables, fruits, and deep-sea fish are essential strategies to stay away from dementia.
Source: http://www. ttv. com. tw/ 096/ 10/ 0961019/ 09610194674405L. htm
Tooth Extraction May Erase Memories
A Swedish research report reveals that when a painful tooth is extracted, part of a person's memory is also "extracted." People with missing teeth have significantly poorer memory than those with intact teeth, and tooth loss may be one of the reasons why the elderly are prone to amnesia.
To conduct this study, starting from 1988, researchers from Umeå University in Sweden tracked 1,962 volunteers aged 35 to 90 over a period of 15 years. They compared the memory of volunteers with intact teeth to those who had all their teeth extracted and used dentures. Scientists found that, under similar conditions in all other factors such as education, age, and medical history, individuals with intact teeth had significantly better memory than those who had their teeth extracted.
Jan Berghdal, an associate professor of psychology at Umeå University, said, "We were also very surprised by this result. This could be a breakthrough in the study of elderly dental health and amnesia." Berghdal, a dentist, is also one of the authors of the report.
He also pointed out that their study is the first large-scale research of its kind on humans, following previous experiments on animals. The results indicate that tooth extraction can sever the nerves connecting the teeth to the brain, thereby affecting memory.
This finding aligns closely with recent results from Japanese scientists studying the relationship between teeth and memory in mice. Japanese scientists discovered that mice with extracted teeth had significantly worse memory of food compared to mice with intact teeth.
To date, this study has not fully explained how tooth extraction affects human memory. It may be because teeth have many nerves connected to the brain, and when teeth are extracted, these nerves disappear accordingly.
Source: People's Daily Overseas Edition
http:/ / big5. ce. cn/ gate/ big5/ ……/ 20/ t20070720_12246256. shtml
Re: Foreign Study Links Tooth Loss to Dementia Risk; Doctors Suggest Inflammatory Substances May Cause Brain Damage
I once read about an animal experiment in a book: half of the teeth of the experimental mice were extracted, leaving the other half intact. After raising them normally for a while, the mice were dissected and examined. It was found that the side of the brain corresponding to the extracted teeth had atrophied. Below are a few similar claims↓
"A nutritionist extracted all the left teeth of a small monkey, leaving the right teeth intact. Half a year later, the right side of the monkey's brain, where the teeth were intact, developed normally, while the left side of the brain, where the teeth were missing, had already atrophied. This experiment proves that the brain will degenerate and atrophy if not stimulated. When a person chews hard objects or increases the speed of chewing, the blood flow to the brain significantly increases, and the difference in brain blood flow between elderly people with and without teeth can be as much as 30%. Good chewing function ensures blood supply to the brain and maintains normal brain activity."
Source: http://www. babyschool. com. cn/ ask/ detail_number_30403. html
"The decline in the function of hippocampal cells in the brain is the histological reason for the decline in memory in the elderly. A study by Nihon University showed that 'chewing may prevent memory decline in the elderly.' Researchers extracted the molars of a group of adult mice and young mice to impair their chewing function; another group of adult mice and young mice were left untreated and allowed to develop naturally as a control group. After feeding both groups the same food, they were subjected to a maze experiment. The results showed that the memory of the group with extracted molars was significantly worse than that of the other group. Inspired by this experimental result, researchers used magnetic resonance imaging technology to observe that the activity signals in the hippocampus of the brain increased during chewing. Therefore, they believe that chewing gum is a good method to stimulate hippocampal function without increasing food intake, which helps prevent senile dementia."
Source: http:/ / iask. sina. com. cn/ brow……% B9% B4% E7% 97% B4% E5% 91% 86. doc
From the above research, it is clear that: Take good care of your teeth and do not extract them casually to avoid premature dementia . Dentists who casually extract others' teeth are also committing a sin.
Classical Chinese medicine believes that "teeth are the surplus of bones," and "the kidneys govern bones and generate marrow." Strong kidney qi leads to healthy bones, strong teeth, and a sharp mind. Whether it is due to old age and the decline of kidney qi, which cannot nourish the bone marrow, leading to tooth loss and memory decline, still requires further research. Additionally, research could be conducted on whether the number of teeth lost is related to the degree of osteoporosis, to prove the theory of "the kidneys governing bones" in Chinese medicine.
Shen Yaozi said, "The sun bakes the earth, dissipating all things."