Do sealants, the plastic coating placed on the back teeth, have to be replaced periodically?
Sealants help prevent tooth decay by covering the small pits and grooves of the back teeth, where a high percentage of decay occurs. Because sealants are usually applied to the tops — or chewing surfaces — of the molars, they wear down over time and need to be replaced. In general, sealants last about five years. It is important to have your sealants checked periodically by your dentist for damage (they may be chipped by hard foods) and for regular wear and tear from chewing. 5. Why do experts believe there is a link between gum disease and cardiovascular disease? Some experts believe that the bacteria causing gum disease can enter the blood stream and cause inflammation and plaque buildup in the arteries leading to the heart and the brain, increasing the risk of a heart attack or stroke. But gum disease is preventable with good oral health and hygiene, so speak to your dentist about the best ways to prevent gum disease. 6. Is there a particular brand of toothpaste a person should buy?