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Showing posts with label dental cavities. Show all posts
Showing posts with label dental cavities. Show all posts
Dental caries (cavities) are the most common form of oral disease known to man, and the process of getting caries is called tooth decay. Tooth decay is the destruction of your tooth enamel -- the hard, outer layer of your teeth. This issue can affect children, teens and adults. Plaque, a sticky film of bacteria, is constantly forming on your teeth. When you eat or drink foods or beverages containing sugars, the bacteria in plaque produce acids that attack tooth enamel. The stickiness of the plaque keeps these acids in contact with your teeth, and over time the enamel can break down, according to the American Dental Association (ADA). The types of caries formed can be broken down into two major groups: Pit and fissure caries. These are found most often on the chewing surfaces of the back (molar and premolar) teeth, and the back of the front (anterior) teeth. Your teeth are composed of several sections of enamel, and where these sections meet, pits and grooves can trap plaque, causing decay. The proper application of pit and fissure sealants, a hard plastic material applied to seal the grooves and pits when the teeth have erupted, can prevent this type of dental caries. The sealants also make it less likely that you will need restorations (fillings) on those surfaces of the teeth. Smooth surface caries. These are found most often along the gumline or where two teeth touch (interproximal or the space between teeth), if plaque forms in those areas. With the proper use of dental floss, you can prevent most smooth surface caries in the interproximal area, and using a manual or power toothbrush along the gumline can prevent caries in that area as well. To read the entire article written by Richard A Huot, DDS, please visit Colgate.com
Dentists complete 122 million composite tooth restorations in the United States each year, according to Oregon State University (OSU). But the average lifetime of posterior dental composites is only 6 years. Bioactive glass may improve their durability and provide some of the minerals that have been lost to tooth decay. “Bioactive glass, which is a type of crushed glass that is able to interact with the body, has been used in some types of bone healing for decades,” said Jamie Kruzic, a professor at the OSU college of engineering. The hard and stiff material can replace the inert glass fillers now mixed with polymers to make modern composite tooth fillings. “This type of glass is only beginning to see use in dentistry, and our research shows it may be very promising for tooth fillings,” he said. “The bacteria in the mouth that help cause cavities don’t seem to like this type of glass and are less likely to colonize on fillings that incorporate it. This could have a significant impact on the future of dentistry.” Bioactive glass is made with compounds such as silicon oxide, calcium oxide, and phosphorous oxide, and it looks like powdered glass. Its antimicrobial effect is attributed, in part, to the release of ions such as those from calcium and phosphate that have a toxic effect on oral bacteria and tend to neutralize the local acidic environment. “Almost all fillings will eventually fail,” Kruzic said. “New tooth decay often begins at the interface of a filling and the tooth and is called secondary tooth decay. The tooth is literally being eroded and demineralized at that surface.” To read the entire article, please visit DentistryToday.com
