SILICATES

1. Formed when glass particles reacts with phosphoric acid
2. Micromechanical bonding
3. Used in anteriors earlier.
4. 1st tooth coloured material.
5. Contains 15% fluoride*
6. Can be used as permanent restoration
7. Least biocompatible.
8. Less chance of plaque growth.
9. Contra-indicated in mouth breathing.