Yes: Orthodontists install braces and fit patients with retainers, but they also correct jaw position and jaw joint problems. Orthodontics literally means "tooth movement", and is mainly concerned with crooked teeth (malocclusions) and facial development (dentofacial orthopedics).
Orthodontics is currently one of the most highly competitive dental specializations. It's ideal for dentists who want to work with children, though the number of adults seeking orthodontic care is increasing every year. It's a chance to not only improve a patient's oral health, but also to boost their confidence by giving them a smile to be proud of.
Orthodontic dentistry requires additional schooling and residency—up to three years of full-time classes and clinical work, depending on the program. Classes include biomedical, behavioral and basic sciences; oral biology; and biomechanics.