The resins dental or composer, are materials mixed with resin plants that will fulfill the same function as amalgams, ie will serve as slingers or shutters for the openings in dental crowns caused by caries, these are considered cosmetic work because Unlike amalgams, the resins will turn the color of the tooth, therefore the observation will not be so evident, in this way the result will be pleasant and cosmetic.
The dental resins are currently materials are replacing amalgams, they not only can be used for existing lesions and can be used to cover future cracks in the teeth. Another difference between amalgams and resins is that they have a powerful and direct adherence to the tooth without relying on extra glues, a disadvantage of using resins can be, in case the patient has poor oral hygiene, this will generate a color degradation at the resin site ranging from yellow to white.
The different components that make up a resin are: the organic matrix, this is the chemical base of the resin and can be made from bisphenol glycidyl methacrylate which has a high viscosity index which makes handling difficult, or the matrix can Being based on methacrylate urethane, unlike the previously mentioned one, it has lower viscosity which facilitates its handling, low rigidity and less polymerization; Another material of the resin would be the inorganic filler, these will give a positive polarity to the primordial resin to improve adhesion and is made from minerals such as quartz crystals, aluminum silicates and zirconite.
