The biggest threat to your oral health is tooth decay. Although cavities are preventable, the Centers for Disease Control and Prevention estimates at least 92% of adults have had at least one in a permanent tooth. If you’re among those who have had a cavity, a filling was probably used to treat it. This provides an effective and long-term solution to save your smile, but do fillings need to be replaced? Here’s what you need to know to ensure your tooth stays strong and healthy.

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