Metals are good conductors of electricity and it does not take too much imagination to suspect that when they are placed in our bodies, they will create electrical currents that may not only cause the release of toxic corrosion products, but also interfere with the body’s subtle energy fields.

Since many dissimilar metals, such as silver amalgam and gold are used as fillings in our teeth, and are present in a moist environment, a battery effect is produced. This electrical activity is measured as “galvanic currents” between different fillings, or between fillings and body tissue. Electricity may cause corrosion of the less noble metal component, releasing harmful metal ions, or it may have neurological effects as it travels though our bodies.

Some people may perceive this as a “metallic taste” in the mouth or a spark of electricity when they have metal utensils or aluminum foil touch their metal fillings. It may also cause fatigue, sleep disturbances, irritability, skin lesions, etc.

It is easy to measure the battery effect. We do that regularly on our patients. A regular voltmeter will typically measure values of 20 to 300 millivolts between a mercury filling and the body. Mercury fillings hiding under or placed adjacent to gold crowns is of major concern because the electricity generated is much more profound.

Mercury released through galvanic corrosion enters the bone and gums surrounding these teeth in concentrations 20-100 times normal values. Other components of amalgams, such as tin and copper, also are released as salts which have a highly toxic effect on the body.

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This certainly is an extreme reaction. Most dental patients with amalgam fillings will have no directly observable reactions, but maybe KJ is actually the luckier person.

Due to the strong reaction his well educated mother had to take drastic actions to save her son. Most other amalgam fillings might sit there for years and years and quietly poison the host without being noticed and connected with ailments that appear over the years.

What comes to mind is the anecdote on how to cook a frog – throw him into boiling water, he will immediate jump out and escape. But put him into cold water and slowly heat up the water to boiling, the frog will not notice the danger he is in and will end up on a plate.

Taking this story to heart might make it possible for many to reconsider the danger of the amalgam fillings they still have and that don’t seem to cause any problems. Maybe they did and still do.

Being an unstable metallic alloy, it is subject to corrosion.

Its excessive expansion and contraction to temperature fluctuations induces cracks within the tooth structure.

The material is not bonded to tooth structure, therefore it allows for micro leakage and decay to develop around its margins. Decay eventually creeps in under the filling and over the years spreads undetected, until a large chunk of the tooth fractures off, or a toothache develops, leading to expensive root canal therapy and crown restoration.

Its placement necessitates compaction into undercuts drilled into the inner aspects of the tooth, so it doesn’t fall out. This in itself, plus the fact that the top protective enamel covering, carefully and ingeniously engineered by nature,  is drilled away and violated,  represent a serious breach in the integrity and stability of the walls of the tooth. These walls, being subject to everyday chewing forces, will eventually chip away, develop internal cracks, or outright break apart.

Example 1:

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Example 3: