Did you ever accidentally bite on a piece of aluminium foil?
A chocolate wrapper, or something similar?
The effect can be anything from just uncomfortable to outright painful and has something to do with different electrical voltages between different metals which will start a current to flow. (Google biting on aluminium to find some more in-depth explanation.)
Beside possibly putting a battery into your mouth – especially if you have amalgam fillings in other teeth – here are a few reasons why to chose metal free implants:
Titanium implants sometimes create aesthetic issues. In particular for patients with gum recession or thin gums. With titanium dental implants place, the gums can appear gray. Zirconia is white and not a metal, so it can provide for a more natural look.
Titanium dental implants often consist of two metal pieces joined together using a fixation screw. Under extreme pressure, these two pieces move slightly, which may result in pockets in which bacteria can gather. Zirconia dental implants are often made from a simple, one-piece design to eliminate this problem, therefore infection is less of a concern as ceramic components will not shift after implantation.
If you have allergies metal implants can become a big problem. Sensitivity might not even show up until years after the implants have been placed. Bone loss and implant failure might be the result. Zirconia dental implants are hypoallergenic, so sensitivity and allergy issues are not a problem.
Zirconia dental implants are extremely durable and strong, and so their long-term success is one of the most attractive features of the system. Ceramic dental implants are designed to withstand great force, and hold up well when put under pressure.
Many patients after choosing metal-free Zirconia implants report shorter implant process and greater comfort with their new tooth.
Titanium implants are known to corrode when placed into a wet environment like a mouth. This process is accelerated by the presence of metal in other teeth. Fluoride also speeds up metal corrosion and can attack the implant surface. Zirconia is a biocompatible material, and these concerns are less of an issue, due to the fact that the substance is resistant to corrosion, and it does not trigger chemical reactions or conduct heat and electricity.
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