What are composites?
Composites remain the most common material used for tooth-coloured fillings especially on front teeth. They can match the colour of teeth very well and can be as strong as natural teeth. The advanced nature of composite fillings mean that they strongly bind to teeth and therefore can re-build a broken down tooth preventing the need for crowns, hence, being more economical.
What is it made out of?
This can vary, but they are mainly made of glass particles, synthetic resin, and a setting ingredient.
How is it placed?
Step 1: Once the cavity has been prepared, the tooth is isolated to prevent saliva contaminating the surfaces.
Step 2: An etching agent is applied for 30 – 40 seconds and washed and dried.
Step 3: A bonding agent is painted on the cavity surface and cured with a blue light.
Step 4: The composite is then used to re-build the tooth structure in small increments and cured using the blue light.
Step 5: The filling is then polished
Step 6: A final layer of unfilled resin is painted on to give a natural shine to the tooth.
Where are they placed?
Due to nature of the composite filling material, it can be placed on all tooth surfaces depending on the dentist’s clinical opinion. They are becoming increasingly popular amongst many people who don’t want silver fillings that show when they laugh or smile because they are more conscious about the way they look.
How long will they last?
This can vary, but most composites properly maintained can last for 10 years or more. It may also depend on eating or any other habits. Follow the dentists advice for best results.