[header] How to treat cavities [title] Understand the signs and symptoms of cavities. [step] It is important to be able to recognize the signs and symptoms of cavities as soon as they appear. This way, you can get a head start on treating them and prevent them from becoming larger and more painful over time. 
If you experience one or more of the following symptoms, you may have a cavity : [substeps] Experiencing tooth sensitivity or a toothache. You might also feel mild-to-sharp pain when eating cold, sweet or hot foods.