Materials used for filling teeth must have certain characteristics- the force of chewing is just one of the situations this material will face in its new life inside your mouth. Obviously some teeth have to withstand more pressure than others, therefore the material used for restoration will also be dependent on the position of the tooth in the mouth.
At CLDC, one of the filling materials of choice is composite resin. This material is a mixture of resin and finely ground glasslike particles that produce a tooth coloured filling. This provides excellent durability and resistance to fracture and will withstand most levels of chewing pressure in small to medium size restorations.