The loss of teeth and life expectancy is related?After 60 years old, how many teeth left is normal? Let's see if you're up to par

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One, how many teeth are related to life expectancy?

Normally, adults have 28-32 teeth in the permanent dentition. Of which 28 are essential, the other 4 are long at the end of the wisdom teeth, wisdom teeth eruption varies from person to person, some people will grow some people will not grow. So is it true that the number of teeth is related to life expectancy?

Danish scientists have 573 age & gt; 70 years of age for 21 years of follow-up, the results found that no teeth, teeth & lt; 10 of the elderly, compared with 20 teeth in the elderly within 5 years of the disability rate increased by 2.81 times, 2.13 times. At the end of the 21-year follow-up, the researchers found that the risk of death was 26 percent higher in older adults without teeth compared with those with 20 teeth.

Not coincidentally, there have been studies showing a direct relationship between the number of functional teeth and the risk of death in older adults. For seniors over the age of 70, the risk of death varied by the number of functional teeth. Specifically:

Although it is said that the above two studies are observational studies, and it cannot be said that tooth loss will definitely affect life expectancy. Tooth loss not only affects aesthetics, but also has a significant impact on health. For the elderly, tooth loss is likely to cause chewing weakness, which in turn leads to the absorption of nutrients is affected, especially easy to protein intake is insufficient. It is also easy for the elderly to swallow food in one gulp, resulting in a heavier burden on the gastrointestinal tract. This can easily lead to malnutrition and indirectly affect life expectancy.

Two, teeth fall out because of the old? Wrong! 2 disease is the main cause

Many people think that the elderly lose teeth with the same old age, is caused by aging, is a phenomenon of necessity, regardless. Hunan Provincial People's Hospital, director of the oral large department, chief physician Zhang Te said, this is the wrong idea, with age, teeth do undergo some changes, such as some teeth will have wear and tear, some cracks and so on. But these changes do not cause older people to lose their teeth. The real cause of missing teeth in the elderly is these two oral diseases:

1, periodontitis

90% of loose teeth, loss is due to periodontitis. Daily do not pay attention to cavity cleaning or habit of breathing through the mouth, etc. can easily cause dental calculus, plaque and other oral problems, if the problem is no longer controlled will easily lead to gingivitis, over time will become periodontitis. Periodontitis constantly brings irritation to the roots of the teeth, inducing them to shrink, leading to the exposure of the pressure roots, and ultimately letting the teeth fall out.

2, caries

Our mouth is a huge petri dish of bacteria, beneficial and harmful bacteria constrain each other to maintain balance. When oral hygiene habits are poor, bacteria will combine with food to form plaque, these plaque will continue to corrode the hardest outer layer of the teeth, resulting in dental caries, which is often referred to as tooth decay. When caries develops to a certain extent, the tooth will need to be extracted for treatment.

Three, how many teeth are left after the age of 60 is normal? How to protect your teeth?

The World Health Organization (WHO) has put forward the "8020" plan, which indicates that an 80-year-old should have at least 20 functional teeth (teeth that can chew food normally and are not loose). This means that after the age of 60, you should have at least 20 teeth to be considered normal. So how do we protect our dental health in our daily life?

Brush your teeth by choosing the horizontal trembling method, place the toothbrush at the junction of the teeth and gums, half on the surface of the teeth, half on the surface of the gums, tilt the toothbrush at 45°, and afterward gently tremor, brushing, pay attention to the strength can not be too much, and each time you brush your teeth, keep the time at about 2 minutes.

Clean your teeth once a day in the morning and evening, and rinse your mouth after meals, which reduces the amount of food residue left in the mouth, and has a beneficial effect on your oral health.

Fluoride is a trace element that is good for oral health, and daily selection of toothpaste should pay attention to the selection of fluoride, which can help form a protective layer on the teeth to prevent caries.

Many oral diseases in the early stage are not obvious symptoms, wait until the symptoms are obvious when often has developed very serious, so in the daily attention to regular oral screening, so as to detect problems in the oral cavity in a timely manner, it is recommended that at least once a year.

After brushing, it is recommended to floss or interdental brush the crevices of the teeth, which can remove food debris from the crevices of the mouth. It is also recommended to have your teeth cleaned at least once a year, as it can help remove calculus from your teeth and also help check your dental health.

Extended reading_--What is that soft, smelly yellow sludge on your teeth?

It is believed that many people will find some yellow mud on their teeth in their lives, and with a distinct odor. This yellow mud is actually a mixture of food debris and bacteria in the mouth, which generally does not pose a threat to health, but only affects aesthetics. But if you don't clean it in time, the yellow mud may react with the saliva and food in the mouth and gradually deposit, calcify, and eventually generate dental calculus.