Composites
Prepared by: Dr. Apexa Modh
Dr. Bhargav Nakrani
Dr. Oza Malhar
Dr. Aastha Padaliya
Dental composite is composed of a resin matrix and
filler materials.
Coupling agents are used to improve adherence of resin to filler surfaces.
Activation systems including heat, chemical and photochemical initiate
polymerization.
- •BIS-GMA resin is the base for composite.
•Diluents are added to increase flow and handling characteristics or provide cross linking for improved strength.
•Common examples are:
• RESIN:- BIS-GMA bisphenol glycidylmethacrylate
•
•DILUENTS:- MMA methylmethacrylate
•CROSS LINK DILUENTS
BIS-DMA bisphenol dimethacrylate
UDMA urethane dimethacrylate
TEGDMA triethylene glycol dimethacrylate
EGDMA ethylene glycol dimethacrylate
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