Frequently Asked Questions 1. What type of toothbrush and toothpaste should I use? …Hard , soft, medium, electric. Flouridated or not fluoridated? 2. How can I prevent cavities? 3. Should I really floss? 4. Does a mouthwash help? 5. What are early signs of dental trouble?…. Teeth sensitivity, jaw swelling swollen face or gums, broken teeth. 6. Why do I need dental exams? 7. Are dental xrays safe and needed? 8. Do teeth need fluoride? 9. What do sealants do? 10. At what age should my child see a dentist?