Shanghai Xinfan Bio: Vigilance: Commonly used dental materials are harmful to the body? -Huaqiang Electronic Network

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As a star female anchor in the UK, Jameela Jamil has a charming smile. However, behind this smile, her teeth—specifically, the doctor's treatment of her teeth caused health problems that have plagued her for nearly seven years.

"From the age of 21, I wake up in the morning and find my face swelled - although I didn't drink the night before, it felt very uncomfortable." Jameela said, "I feel so dizzy, exhausted, even Sometimes I faint. Sometimes, when I get to work, the makeup artist sees me very uncomfortable and will send me home directly."

After this situation lasted for several months, she went to the doctor for an examination. Jameela thought he might have a serious illness, such as lupus erythematosus, an autoimmune disease that causes inflammation of the body and swelling of joints.

The actual inspection showed that her body's mercury content was too high. After investigating potential causes such as a series of diets, doctors believe this is related to the 10 amalgam fillings she implanted in childhood. Therefore, she spent £3,000 to remove all of the filler and suffered a new white filler.

Dental amalgam has been widely used in clinical practice

Mercury is commonly known as mercury. Amalgam has been used as a repairing filler for teeth for over 150 years. It is an alloy composed of mercury and other metals (silver, copper, tin and zinc). It has strong plasticity and good shape. It has the characteristics of high compressive strength and low wear resistance, and is the most widely used filling material in oral therapy. According to statistics, amalgam accounts for 80% of all dental restorations in the restoration of posterior teeth, with a clinical life span of 10-30 years.

However, mercury is the most toxic non-radioactive element known to man, and can kill only two grams. Mercury can accumulate in the body and is easily absorbed by the skin, respiratory tract and digestive tract. When the body inhales a very high concentration of mercury, it can cause bronchitis and pneumonia, and affect the nervous system, causing muscle tremors. Long-term exposure to high concentrations of mercury can affect the kidneys.

However, mercury poisoning is very rare. Dr. Prem Mahendra, a hematologist at Queen Elizabeth Hospital in Birmingham, UK, said: “As a hematologist, I have been working for 27 years but have never been asked to test blood mercury. content."

The dentist acknowledges that when the amalgam filling is implanted or removed, mercury vapor is released and then absorbed by the body. Therefore, for nearly a century, people have been worried about the potential health hazard of mercury vapors inhaled and absorbed by amalgam. Many governments and institutions have tested the safety of amalgam and concluded that there is no reliable evidence of a causal relationship between amalgam and adverse health effects, except for rare allergic reactions.

Moreover, amalgam releases mercury only under great pressure and wear. Dr. Ben Atkins, a dentist, said the amount is "insignificant."

Amalgam is strong, durable, and adaptable. St John Crean, a professor of dental medicine at the University of Central Lancashire and a dental facial surgeon, said there is no evidence that there is a safer material than amalgam. In some cases, mercury can cause tooth sensitivity and soreness, which is the fact that about 5% of people will respond to amalgam, but there is no risk to health.

Disabled in Norway, Sweden, Denmark, etc.

Although several studies have shown that the risk of amalgam to human health can be “negligible”, some European countries have suggested avoiding the use of amalgam. Countries such as Sweden, Norway, and Denmark are banned, and Finland and Japan restrict their use and will phase out this material.

Previous studies have shown that mercury is associated with certain diseases. A review study published in the Journal of Alzheimer's Disease in 2012 showed that patients with amalgam fillings in the mouth are more likely to suffer from Alzheimer's disease, mercury in amalgam May be a contributing factor to the disease.

But dental amalgam is not the only source of mercury in the human body, it can also enter the blood through food. Almost all fish and shellfish contain mercury, but most people don't seem to care.

After high concentrations of mercury are ingested by fish and shellfish, the nervous system development of unborn fetuses or young children may be compromised. This is also why doctors recommend that children and pregnant women who plan to become pregnant, pregnant women and mothers who are breastfeeding eat as little or as little as possible of high-mercury fish such as sharks, swordfish and marlins. Especially for pregnant women, the amount of tuna they eat should be more limited. It is best not to exceed the amount of two steaks or the amount of cans in four bottles a week.

Jameela does not eat fish, so the mercury content has nothing to do with her diet. She is allergic to peanuts, shellfish and dairy products and was diagnosed with celiac disease at age 12 – a condition that is allergic to gluten (which is found in wheat, barley and rye).

When the blood test showed that her body's mercury content was high, "My only thought is that I have to get rid of them." Jameela said.

Although she hopes her symptoms will quickly resolve after the amalgam fillings are removed, they continue to plague her for years. "I hate fatigue and headaches. I should have been healthy, but I have always felt terrible," Jameela said. “I checked some information and found that it took some time for the mercury content to drop in the body, and when the amalgam filling was removed, mercury vapor was released into the body. I think mercury has affected my immune system and digestive system. ”

At this point, Dr. Atkins, a dentist, also said that he has said that many patients who are worried about potential health problems and want to remove their amalgam fillings have more harm than good because they remove more mercury. It is absorbed into the body during the removal process.

“There is no evidence that amalgam is safer than other materials. Regardless of the fact that every time a dentist drills a tooth, they remove a small portion of the tooth tissue, so this is basically a damage to the teeth.” Say.

The dispute is not yet exhausted

In the process of fighting physical discomfort, Jameela met a nutritionist who recommended that she drink three times a day of water made from clay and chlorella. These substances can combine with mercury to help them out of the body. She has been doing this for two years and has tried various diets to eliminate the inflammation associated with mercury.

“To celebrate my 25th birthday, my roommate gave me a melon with a candle – a cake is impossible.” She said, “It took me about a year to feel better, it produced for my life. A huge impact."

However, gastroenterologist Anton Emmanuel is not sure that mercury will affect the digestive system in this way. “Only if you are exposed to a large amount of mercury, your stomach may be affected,” he said. “It’s not possible to use mercury levels or levels.”

“Actually, the irony is that I see that the patient’s gastrointestinal symptoms appear to be caused by stress and anxiety in the gastrointestinal disease that they think the mercury fillings cause, and they do not show the corresponding symptoms on their bodies. ."

But Jameela still believes that mercury is the cause of many of her health problems. “We don’t know much about mercury fillings, I only know that I feel much better now.”

Mercury testing is available in some private clinics. Dr. Mahendra cautioned that anyone considering this test should first understand to ensure that the clinic has clinical pathology certification (CPA) to ensure that testing is performed normally.

Conclusion

Regardless of the controversy, it is fortunate that with the development of science and technology and the improvement of people's living standards, it is a historical necessity for amalgam to gradually eliminate the filling materials of teeth, not because "mercury is one of the most dangerous environmental toxins". But now there are composite resin materials and porcelain materials with high strength, high wear resistance, vivid color, high adhesion to teeth, and porcelain materials, and there is no need to use color and teeth to be inconsistent, and there is micro-osmosis between the teeth. Leaking, there is also a "toxic" controversial amalgam.

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