Downloads for Dental Colleagues


Direct one appointment dental fillings can be either amalgam ‘silver fillings’ or composite resin ‘white fillings’.

Amalgam Fillings
Amalgam fillings are a blend of silver, copper and mercury. It is a material that has been used for more than 150 years. It has a lot of very good characteristics for a filling but has received a lot of bad press in recent years. Very few patients are sensitive to the mercury in the filling (<quo;1%).

In fact patients who eat a lot of fish will probably find that they have higher mercury levels in their blood from what they eat rather than from their amalgam fillings. These fillings are cost effective, strong and durable but exhibit poor cosmetic results, require a sufficient amount of tooth structure as it locks into undercuts and does not strengthen the teeth. Another problem is the waste disposal of amalgam into the environment. At Dental Knight we have amalgam separators built into our suction unit so that we can dispose of it carefully and correctly.

White Composite Fillings
White composite fillings are tooth coloured resins which comes in different shades of white.

It directly bond to the teeth and does not require undercuts like amalgam fillings.
These fillings can reinforce tooth structure to a certain degree and can be used in conjunction with air abrasion/micro dentistry techniques.

It is relatively inexpensive but has limited durability, stains over time and shrinks on setting thereby creating a food trap in between teeth which can lead to a tooth requiring root canal therapy sooner than if you had an inlay/onlay.