Many patients don’t realize that, even with regular brushing and cleaning, they are still susceptible to cavities if their teeth have deep pits and grooves on the chewing surface. Food has a tendency of getting trapped in these areas, and it’s very difficult to remove. When the dentist finds cavities on your chewing surfaces, the only option is to drill them out and add fillings (or worse if the cavities have reached the nerve). But why wait for a cavity to develop if we can prevent it in the first place? Sealants are a plastic material we use to fill up those deep pits and grooves, preventing food from being trapped and reducing the chances of getting a cavity.