An object deemed culturally or historically significant or socially valuable can be preserved or restored by varying scientific methods of conservation. Conservation practices range widely, dependent on the desired or necessary extent of the alterations and the levels of preservation chosen or available. Conservation practices take into account the object's original configuration of time, space and matter. From minor acts of preventative conservation that strive to maintain the original material integrity to the more invasive practices of full-blown restorations, the resulting work has a potential to transform an object into a distant echo of its original state.
Available at: http://works.bepress.com/virginia_dressler/3/