Degradation of dental resin through water diffusion
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Dental resin is used in the dentistry field as restorative material that fills out cavity of teeth. It is insoluble, aesthetic, unreactive in dehydration, and inexpensive which makes it a very reasonable option for patients who want their cavity to be cured in a more aesthetic way. Dental resin is mainly composed of two polymers called Bis-GMA and TEGMA. However, with time, these resins do not last due to environmental issues. Most of the water molecules that penetrate inside the resin is saliva. These molecules go through all the way down into the gap between the dentin and resin. As water molecules accumulate between these gaps, resins start to fall apart slowly and eventually separates completely from the dentin.