We all want to prevent cavities, but unfortunately, they are a common reason for dental visits. Cavities, also called caries, are caused by plaque. When plaque builds up on your teeth, the bacteria that live in the mouth produce acids that eat away at the enamel and cause tooth decay. If the decay reaches all the way inside the tooth, it hits the nerve endings, causing a toothache. If a cavity is left untreated, the hole will only grow deeper and wider. If you suspect you have a cavity, see your dentist right away.
Getting a Filling: What to Expect
Amalgam fillings have been used by dentists for over 100 years, but some people question their safety as they contain small amounts of mercury. For many people, composite fillings offer a distinct advantage. Learn about the advantages of composite fillings in our Cavities and Fillings video in the General Dental video section.
To fill a cavity, your dentist will usually numb the mouth with a local anesthetic injection, and remove the rotted part of the tooth by drilling. However, a number of dental offices now offer alternative procedures that don't use needles and drills. If you have a larger cavity, your tooth may require more than a filling: a tooth restoration such as an inlay, or a dental crown if the decay is severe enough.
Preventing Cavities and Fillings
Dental sealants are a type of protective coating that can be applied to the back teeth. The sealant shields the biting surfaces from plaque and cavities. Sealants are more commonly used to protect children's teeth from cavities, but they can also be beneficial for adults.
Want to help prevent cavities? Always brush and floss after meals, so that bacteria can't produce the acid that creates holes in your teeth. Limit sugary and acidic foods, chew sugarless gum, and don't miss your regular dental exams.