Dental amalgam, popularly known as silver filling is composed of mercury, a silver alloy, tin and copper. The mercury released from silver fillings is very less compared to the quantity of mercury that the patient takes in through air, food and water. There are different other restorative materials available. Noble metals like gold, porcelain and composite resins are examples of other restorative materials.
Fluoride is formed out of an element called fluorine which is available naturally in air, water, soil and most of our food products. Fluorides penetrate the enamel of teeth quite easily, particularly in the teeth of kids in process of growth. Once the development process is over, the teeth become highly resistant to tooth decay because of fluoride absorption. Fluoride has an added advantage of stimulating remineralization thereby repairing the damaged or demineralized part of the tooth before it becomes detectable.
Radiographs or X-rays are diagnostic aids that the dentist uses to confirm the existence or extent of severity of periodontal disease, abscess and other growths like cysts or tumors that are not normal. Those abnormalities or defects that go undetected during visual check-ups such as cavities or signs and symptoms of diseases can be easily detected and exactly located with the help of X-rays. The effect of x-ray exposure to the patient is the matter of concern for health providers in general. Your dentist will advise you for an X-ray only if it is extremely important and the schedule will also be customized to suit your personal needs. By bringing in use the recent advances in dentistry like digital radiography, your dentist can keep the radiation exposure at a negligible level.