Nucleic acid dentures all fell out: more than one big white was “bitten”

This year’s popular greeting “Today, have you got nucleic acid?”.

Just a few days ago, an uncle in Guangdong became popular, and a denture fell out disobediently after testing for nucleic acid. The staff calmly used a cotton swab to push the uncle back.

Image source: Weibo

Jun Tadpole looked at Weibo curiously, and found that many Dabai had experienced “biting his hand” during nucleic acid testing.

Image source: Weibo netizens

Dentures that cannot be ignored

In Mr. Tadpole’s impression, wearing dentures seems to be a “patent” for the elderly. Grandparents, grandparents, and some parents also wear dentures.

Are we really unable to escape the fate of wearing dentures in old age?

With the improvement of living and medical standards, people’s life expectancy is getting longer and longer, and the requirements for the use of teeth are getting higher and higher.

The World Health Organization proposes the “8020 standard” for measuring dental health, that is,A person with healthy teeth should be able to keep at least 20 functional teeth that can chew normally when he is 80 years old.

According to Professor Wu Buling, Dean of the School of Stomatology of Southern Medical University,At present, less than 5% of people in my country can meet this standard.

People with substandard dental health are more likely to suffer from tooth loss in old age or even before old age, which reduces the effective chewing area in the mouth and affects the human body’s intake of various nutrients through normal eating.

In addition, the teeth adjacent to the missing teeth will become inclined due to the loss of support and restraint, resulting in disturbance of the occlusal function, and even lead to facial deformation in severe cases.

Therefore, wearing dentures (dentures) has become an important means to solve the problem of missing teeth. But wearing dentures can really have an impact on our daily diet and physical health.

Image credit: hippox

Is wearing dentures really “boring”?

Our perception of food taste is mainly based on the special structure of taste buds. Taste buds are composed of taste cells and supporting cells. They can sense the four tastes of sweet, sour, bitter and salty, and other tastes are formed by the fusion of these four. .

Normal adults have about 10,000 taste buds, most of which are located on the back of the tongue, especially the tip and side of the tongue, while the rest are located in the palate, pharynx and other parts of the mouth.

Image source of taste bud structure: Wikipedia

Our oral cavity is like a mixer with its own humidification function. The food entering the oral cavity will stimulate the taste buds in the oral cavity through chewing and stirring with the tongue and saliva. The taste buds that receive the stimulation will transmit information from the taste nerve to the The taste center of the brain produces the sense of taste.

Wearing dentures will have a certain impact on the perception of food taste in the oral cavity, especially for people who wear removable dentures or full dentures.

First of all, removable dentures and full dentures usually need a large plastic or metal base plate to help retain and bear the chewing pressure, which leads to a strong foreign body sensation in the oral cavity, which has obvious restrictions on the movement of the tongue, which in turn affects the The contact between the tongue and the food during eating causes some of the taste buds on the tongue to be unable to adequately receive taste stimuli.

Secondly, the finer the food particles are chewed in the mouth, the larger the contact area with the taste buds, and the more sufficient the food taste stimulation received by the taste buds.

After wearing dentures, although the chewing ability has been partially compensated, there is still a certain gap between the chewing efficiency and the natural teeth, and the food cannot be chewed as finely, which affects the full contact between the taste substances and the taste buds, resulting in the perception of food taste. decline.

Long-term wearing of dentures can also cause malnutrition

Recently, a new study from the Regenstrief Institute and Indiana University School of Dentistry (“Nutritional Assessment of Denture Wearers Using Matched ElectronicDental-Health Record Data”) shows that wearing dentures may also have potential adverse effects on our nutritional health. , and even lead to malnutrition.

Image credit: Journal of Prosthodontics

The research team collected electronic dental records (EDRs) of various patients who underwent full denture restorations, removable partial denture restorations, and implant-supported denture restorations at the Indiana University School of Dentistry Clinic between 2010 and 2018, and obtained their electronic health records. Records (EHR).

Based on the gender and age of these patients, the research team matched a group without dentures as a control group, and compared the two groups’ electronic health records for biomarkers that reflect nutritional health levels at the time when patients began wearing dentures. changes and disparities.

The results showed that some nutritional and health indicators of patients who wore various types of dentures decreased significantly after wearing them for two years. The group without dentures showed no decline in relevant indicators, and the levels of relevant biomarkers remained within normal ranges.

In addition, the researchers speculate that it is possible that the levels of certain nutritional markers in patients with dentures may continue to decline over time to the point of having a significant impact on individual health.

From this point of view, if we cannot protect our oral health, once a tooth is missing, even wearing dentures cannot completely replace the original healthy teeth, and a series of dietary and nutritional health problems will arise.

Only by adhering to good oral hygiene habits, conducting regular oral health examinations, seeing a doctor in time for dental problems, and preventing and treating them early, can we continue to eat mamaxiang!

Hashtag: Biomedical nucleic acid detection dentures