It is usually advised by dentists not to alter your dental fillings in any capacity. This is because they are fixed in their places to serve a very important purpose. Dental fillings, and particularly silver fillings, are placed after thorough cleaning of the inside of teeth to make sure that no further decay takes place inside. Taking them out would expose the cavities, and increase the chances of food particles sticking in your teeth, causing more decay. It is, therefore, best to leave your dental fillings as they are and not disturb them.