Posterior teeth need to withstand greater occlusal force, and bear the main chewing function, so fillings are recommended to choose high hardness, wear-resistant materials such as resin, porcelain inlays, silver mercury and so on.
1. Resin: the clinical application of light-curing composite resin with high hardness, good abrasion resistance, high ductility, and close to the color of natural teeth, relatively beautiful, so it can be widely used in the front teeth and back teeth, of which the 3MP60 resin hardness is relatively high, filling the back of the teeth is more suitable.
2. Porcelain inlays: For the adjacent jaw surface of large defects in the back of the teeth, it is best to choose to use porcelain inlays to repair, can maximize the restoration of the appearance of the teeth as well as chewing function, and has good mechanical properties and edge of the close, better aesthetic effect, hardness is higher than the ordinary resin.
3. Silver mercury: silver mercury has high hardness, good abrasion resistance, and low price, used to fill the back teeth to meet the bite force of the teeth, but the silver mercury black color, can not meet the aesthetic demand, suitable for patients with limited economic consumption level.