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Dr. Jeffry Kerbs on Mercury Safe Dentistry

Dr. Jeffry Krebs

Dr. Jeffry Krebs

Escondido–based holistic dentist, Dr. Jeffry Kerbs, is emphatic about spreading the word on the dangers of mercury amalgam (silver) fillings. According to Kerbs, an advocate for mercury safe dentistry practices, the following are well-established facts in scientific literature:

1) There is no level of mercury exposure that can be regarded as safe or harmless.

2) When originally placed, “silver” amalgam fillings contain approximately 50 percent mercury.  
3) Mercury is not “locked” in fillings and does escape in small amounts, mostly in the form of volatilized mercury vapor.
4) Exposure to mercury increases with chewing, tooth brushing and heat.
5) Mercury vapor is extremely toxic and easily absorbed. Its toxicity is rated greater than lead, cadmium or arsenic.
6) Leading toxicologists have concluded that mercury from amalgam fillings constitutes the single greatest source of mercury exposure to humans.
7) Animal studies have shown amalgam-derived mercury accumulates in body tissues and organs. It also travels through fetal blood supply to fetal tissues and is found in maternal milk.

With that in mind, it’s important to know the difference between a mercury-free and mercury safe dentist.   “More and more dentists are no longer using amalgam, because it simply isn’t a good filling when compared to the newer composites. Increasingly, these dentists refer to their practices as being mercury-free,” shares Kerbs. “However, that doesn’t mean that they believe mercury fillings are a health hazard, or that they will protect you from excessive exposure to mercury during their removal. Bottom can’t just assume that a dentist who advertises his or her practice as being mercury-free is also mercury safe.”

Kerbs states that being protected during the amalgam removal process is extremely important because the greatest exposure to mercury vapor occurs when fillings are unsafely removed. “When a mercury safe dentist uses a safe amalgam removal protocol, the amount of mercury vapor you would be exposed to can be reduced by 90 percent or more,” he explains. “The importance of this protection can be better understood when you realize that unsafely drilling out an amalgam filling can release up to 4,000 mcg of mercury vapor. Dentists who are committed to mercury safe dentistry are concerned about protecting not only their patients from mercury exposure, but also themselves, their team and the environment.”

Jeffry S. Kerbs, DDS, practices mercury safe dentistry at his office located at 240 S. Hickory, Ste. 207, in Escondido. For more information, call 760-746-3663 or visit

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