Galvanic current is a term that has been used in dentistry for over 100 years. It is a condition created by the presence of dissimilar metals in the oral cavity of the teeth and gums, with saliva serving as the electrolyte. Have you ever felt a "shock" to your teeth caused by a piece of tin foil or a spoon that touches a sliver or mercury filling in your mouth? If you answer yes to this question, you've experienced a galvanic event.
Other than tooth sensitivity, galvanism can cause a metallic or salty taste in the mouth, increase salivary secretion, and burning or tingling sensation of the tongue. Other systemic complications may include headaches, chronic fatigue, memory loss, sleep deprivation and even irritability due to its effects to the central nervous system.
The good news is that it can be measured. An electrical potential meter known as the Rita Meter can be used to measure electrical charges on fillings, crowns and metallic appliances.
Healthy gold crowns or composite resins (tooth colored fillings) most often register a positive charge. When they register a negative charge greater than -2, it usually indicates either decay under an old filling or there's an amalgam/mercury filling under a crown.
If these symptoms sound familiar or if you've had 4 or 5 different dentists caring for your dental needs over the years, chances are much greater that there are several dissimilar metals to be found in your mouth.
Remove the offending material(s) connected with that particular tooth or teeth in order to reduce this unwanted electrical charge and create a balanced condition. Biological dentistry views galvanism as an obstacle to achieving overall health and wellness. Keep it simple, keep it safe. A balanced body is a healthy body.