More recently, however, the NPM has adopted newer concepts originating in the West, opting whenever possible for simple cleaning and conservation of damaged objects, so long as the damage does not affect the piece's structure or its overall aesthetic appearance. Some museums these days even undo restorations of the past for the sake of a clean appearance.
但近年參照西方新觀念，只要文物損傷沒有破壞結構或是無礙於整體美感，就儘可能保持原樣，只作清潔與維護的工作，甚至還會刻意移除以往不適當的「人工添加物」，還給文物一個乾淨的實相。