Class I Composite Fillings

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My Surface treatment protocol as follows:
1. Sandblasting
2. Total etch
3. Chlorhexidine rinse
4. OptiBond FL primer
5. OptiBond FL adhesive.. 2 layers
6. Light cure for 20 - 40 seconds
7. Wait 5 minutes for the hybrid layer to mature

Materials used:

Aluminum Oxide 50 micron
Chlorhexidine Solution 2%

Optibond FL Primer
Optibond FL Adhesive

PA2 Composite from Tokuyama

Sanctuary Rubber Dam (medium)