How do I Know if I Need Orthodontics? Only we can determine whether you can benefit from orthodontics. Based on diagnostic tools that include a full medical and dental health history, a clinical exam, plaster models of your teeth, and special X-rays and photographs, an orthodontist or dentist can decide whether orthodontics are recommended, and develop a treatment plan that’s right for you. If you have any of the following, you may be a candidate for orthodontic treatment: