Bruh.
Go invest a dollar into one of these kits at your local drug store...
apply some pressure and that **** will be gone in no time. Dentist are scam artists for the most part. I put this on everything I love. I went a solid 10 years without going to the dentist and went a few months ago, got my x-rays and teeth cleaned and no cavities. My old fillings even held up.
When I made the appointment and told them I hadn't seen a dentist in 10 years (and not due to a lack of insurance, but because I have hated dentist since I was a kid) they were on the phone thinking I was gonna come in with my grill looking like a set of dominoes. After the cleaning the dentist asked how I kept my teeth on point for so long and I told him flossing and brushing and that's it. If you floss regularly in a addition to brushing you'll be aight.