Dental fillings are most commonly used to treat cavities. They are also used to repair cracked or broken teeth, or teeth that have been worn down over time. Most people will need to get at least one dental filling in their lifetime. They are most commonly used to treat cavities, but fillings are also used to repair cracked or broken teeth, or teeth that have been worn down over time. At Aspen Dental, we use all the latest techniques and equipment to help make the experience virtually pain-free. And once your treatment is complete, we'll help you with information on how to continue taking care of your smile.