What is a glass ionomer filling?
Glass ionomer fillings are cream-coloured fillings. They have the ability to stick to teeth. They also have the added benefit of Fluoride release. They were first developed in the 1970′s
What is it made out of?
It contains high levels of fluoride, aluminium, calcium, sodium and silica and a polyacrylic acid. More advanced glass ionomers are resin based making them stronger and have better aesthetics.
How is it placed?
Once the tooth has been cleaned out and dried, glass ionomer can be directly placed into the cavity. It will stick to the tooth without the need for pins or excessive removal of natural and healthy tooth substance. Glass ionomers are usually placed on baby teeth with the advantage of fluoride release which helps to prevent further tooth decay. They are also placed on the non-biting surfaces of adult teeth, where cavities have been caused by toothwear and decay. See below:
Step 1: Apply Self Conditioner to prepared cavity. Leave for 10 seconds.
Step 2: Blow dry for 5 seconds. Do not rinse.
Step 3: Apply mixed Glass Ionomer. Slightly overfill cavity.
Step 4: Light-cure for seconds.
Step 5: Finish under water spray and polish as needed.
Does it contain harmful substances?
No. However, some patients are reluctant with the use of fluorides.