Composite or tooth coloured fillings are used at Sanctuary Dental rather than the alternative which is a mercury amalgam filling. We believe that it is very important not to use mercury and we remove these old mercury fillings carefully. These fillings are 50% mercury and we regard this material as highly toxic.
Composite filling materials have improved over the years to ensure that they are strong and long lasting. They also bond the remaining parts of the tooth together and help to strengthen the tooth when it is under the pressure of chewing. Mercury fillings weaken the tooth and it is common to see that the corners of the tooth crack and break with this type of filling.