Aesthetic and physical-mechanic features of composite materials complete the tooth structure very well, and have completely replaced non-aesthetic, amalgam fillings. Amalgam filling is banned in many countries due to constant releasing and toxicity of mercury, a component of amalgam fillings. Composite fillings on the other hand have a much better chemical connection to the tooth, and due to high possibilities of adhesive systems have significantly reduced the need for extensive grinding of the tooth substance.

The latest advances are composites based on Nano technology characterized by exceptional polishing possibilities and high aesthetic results.