Problems caused by metals

Why metal-free?    

Let's go further into detail. Metals in tooth replacement materials are not uncommonly a long-term burden and are possible allergens. The impact of the burden caused by metals is always dependent on the extent and the duration of the burden (in the mouth it is 24 hours a day) as well as on the person's physical condition at any given time.

Also read

Metal-free dentistry

Metal-free implants

Advantages

Not all ceramics are the same

A short history

Biocompatibility test, i.e. methods for material testing

Levels of testing

Is compatibility forever?