I am 20 years old. I have very bad teeth with many cavities. I brush my teeth twice a day. I also floss and use mouthwash every day. Even though I follow all the protective measures, my mouth is full of cavities and it has ruined all my confidence. Even though I get them filled once in every three months, I am getting a new cavity after giving so much care and treatment. I got a root canal treatment for one of my wisdom teeth. Please help me save my teeth.