Different sources of radiation include the sun, minerals in the soil, appliances in your home, and dental X-rays -- these can damage the body's tissues and cells and possibly lead to the development of cancer. Fortunately, the dose of radiation you are exposed to during the taking of X-rays is extremely small.
Advances in dentistry over the years have lead to the low radiation levels emitted by dental X-rays. Some improvements are, higher speed X-ray films that require shorter exposure time compared with older film speeds to get the same results, and the use of film holders that keep the film in place in the mouth, which prevents the film from slipping and having to take another x-ray. Also, the use of lead-lined, full-body aprons, this protects the body from stray radiation. In addition, federal law requires that X-ray machines be checked for accuracy and safety every two years, with some states requiring more frequent checks.
Tooth decay occurs when germs (bacteria) in your mouth make acids that eat away at a tooth. It can lead to a hole in the tooth, called a cavity. If not treated, tooth decay can cause pain, infection, and possibly tooth loss.A tooth has three layers
What causes tooth decay?Bacteria and food can cause tooth decay. A clear, sticky substance called plaque is always forming on your teeth and gums. Plaque contains bacteria that feed on the sugars in the food you eat.Over time, these acids destroy tooth enamel, which will cause tooth decay.Things that may cause tooth decay include:
Tooth decay usually doesn't cause symptoms until you have a cavity or an infected tooth. When this happens, you may have:
Things that can cause sensitive teeth are:
Options available are bonding, crowns, veneers, and recontouring.
Each of these options differ with regard to cost, durability, "chair time" necessary to complete the procedure, stain resistant qualities, and best cosmetic approach to resolving a specific problem. The dentist will discuss the best option for you .