Q. I am 19 and have a crown and four fillings. I look after my teeth – brush with prescription fluoride toothpaste twice a day without rinsing, mouthwash and floss every day. I’m absolutely terrified that my teeth are just going to keep getting worse and worse, and that I will not be able to stop them rotting and falling out. I see a dentist every six months and I just know every time that I will be unable to stop something awful happening. It has got to the point of obsession, I cry whenever I think about it and I’m frightened to eat most things. Can I still have healthy teeth after fillings?,