Swallowed Silver Fillings: Health Risks and Dental Safety Concerns - Dentistry

Share to:

Ingestion of silver powder?


Hello Dr.
Lin, I visited the dentist to have my teeth checked, and the doctor removed the amalgam fillings I had from years ago and replaced them with resin.
During the procedure, no rubber dam or other protective measures were used, and I am concerned about potential exposure to mercury vapor and that I may have swallowed some amalgam.
What health risks could this pose to my body?

kk, 10~19 year old female. Ask Date: 2023/08/23

Dr. Lin Jiayong reply Dentistry


Hello: Mercury vapor from dental amalgam typically occurs during the placement or hardening process.
If the amalgam was placed a long time ago, the amount of mercury vapor released during removal is minimal, and the amount of metal ingested is also very small, both of which are within acceptable limits.
Unless a large amount (more than three fillings) is removed at once, there is little concern for metal toxicity.
It is advisable to visit a hospital for a blood test to check relevant levels and to continue monitoring for any related clinical symptoms.

Reply Date: 2023/08/23

More Info


Swallowing silver fillings, particularly those made from dental amalgam, raises valid health concerns, especially regarding mercury exposure. Dental amalgam is a mixture of metals, including silver, tin, copper, and mercury. While the use of dental amalgam has been common for many years due to its durability and cost-effectiveness, there are ongoing discussions about its safety, particularly concerning mercury.

When dental amalgam is placed or removed, there is a potential for mercury vapor to be released. This vapor can be inhaled, which is a concern for both patients and dental professionals. However, the amount of mercury vapor released during the removal of older fillings is generally considered to be minimal, especially if the procedure is conducted in a well-ventilated environment. The risk of significant mercury exposure is particularly heightened if multiple fillings are removed at once or if the procedure is not performed with appropriate safety measures.

In your case, since you mentioned that the dentist did not use a rubber dam or other protective measures during the removal of the amalgam, it is understandable to be concerned about potential mercury exposure. However, the amount of silver or mercury that may have been swallowed during the procedure is likely to be very small. According to dental health experts, swallowing a small amount of amalgam is not expected to cause harm, as the body can typically handle trace amounts of metals. The key concern would arise if there were significant exposure over time or if large quantities were ingested at once.

If you are experiencing any symptoms such as headaches, fatigue, or neurological issues following the procedure, it would be prudent to consult with a healthcare provider. They may recommend blood tests to check for mercury levels and assess any potential health impacts.
Regarding your concerns about the safety of dental amalgam and the alternatives available, it is worth noting that there are several materials used for dental fillings today, including composite resins, glass ionomer cements, and ceramics. Each material has its own advantages and disadvantages. For example, composite resins are tooth-colored and can be aesthetically pleasing, but they may not be as durable as amalgam for large cavities. On the other hand, ceramics can offer excellent durability and aesthetics but may be more expensive.

When considering future dental work, it is essential to discuss your concerns with your dentist. They can provide guidance on the best materials for your specific dental needs and help you weigh the risks and benefits of each option. If you are particularly concerned about mercury exposure, you might opt for non-amalgam materials for any future fillings.

In summary, while swallowing a small amount of silver fillings during a dental procedure is concerning, the health risks associated with such an event are generally low, especially if no significant symptoms arise. It is always best to maintain open communication with your dental care provider about your concerns and preferences for dental materials. Regular dental check-ups and monitoring can also help ensure that any potential issues are addressed promptly and effectively.

Similar Q&A

Concerns About Ingesting Silver Filling: What Parents Should Know

Hello Doctor: My child is currently over four years old. Today, he just had a silver filling placed on his lower molar. This evening, he said he accidentally swallowed a piece of the filling (silver powder). I checked the filling site and noticed that half of it is missing. Docto...


Dr. Huang Tingfang reply Dentistry
Dear Mrs. Yang: Hello! (The silver filling that was swallowed) The mercury should have evaporated, and it will likely pass through the body like a small stone! You should take your child back for a filling; otherwise, the tooth may decay further! Please communicate more with the ...

[Read More] Concerns About Ingesting Silver Filling: What Parents Should Know


Is Silver Filling Safe? Debunking Myths About Dental Mercury

Hello, doctor: I heard that silver fillings contain heavy metals and mercury, and it is best to remove them and replace them with composite resin to avoid poisoning or dementia. Is this statement correct?


Dr. Huang Zhicheng reply Dentistry
Dear Uof: Hello, silver amalgam is a relatively stable dental filling material, and some negative reports are based on individual cases or coincidences. However, due to its mercury content, dentists now avoid using it out of caution. If it needs to be removed and replaced, it sho...

[Read More] Is Silver Filling Safe? Debunking Myths About Dental Mercury


Is Inhaling Silver Powder and Swallowing It Dangerous for Dental Health?

My second molar has a chipped corner. The center was previously filled with silver amalgam. The dentist temporarily sealed the chipped area after drilling it slightly. When I rinsed my mouth, I noticed that the water I spat out was black. Since this tooth is the one closest to my...


Dr. Zhu Guanyu reply Dentistry
Hello, The so-called silver powder refers to a silver-mercury alloy, which is chemically stable. Based on your description, such a small amount should not pose any significant risk, so there is no need to worry excessively. Thank you for your message. Wishing you peace and go...

[Read More] Is Inhaling Silver Powder and Swallowing It Dangerous for Dental Health?


Understanding Silver Fillings: Corrosion, Cracks, and Dental Care Concerns

Dear Dr. Tseng, Thank you very much for your personal response to my inquiry regarding "Silver Powder Dental Filling" in article #155479. I sincerely appreciate it. However, I still have some questions I would like to ask Dr. Tseng: 1. In your response, you mentioned:...


Dr. Zeng Guanghui reply Dentistry
Hello Mr. Ah-Xiang: 1. (1) The metal fillings can corrode over time in the moist environment of the oral cavity, and there may be small gaps or cracks at the edges of the filling, which can lead to secondary caries in the treated tooth. (2) Most commonly, cracks develop between ...

[Read More] Understanding Silver Fillings: Corrosion, Cracks, and Dental Care Concerns


Related FAQ

Silver Filling

(Dentistry)

Dental Filling

(Dentistry)

Lost Filling

(Dentistry)

Halitosis

(Dentistry)

Cavities

(Dentistry)

Accidental Ingestion

(Otolaryngology)

Dental Pulp

(Dentistry)

Infection

(Dentistry)

Bitten Tongue

(Dentistry)

Gum Cyst

(Dentistry)