Orthodontic Treatment Lombard, IL Dentist Orthodontic treatment is used with adolescent and adult patients to straighten teeth and correct misalignment. Crooked or misaligned teeth can cause difficulty with speech, chewing, and effective brushing. Misalignment can also contribute to tempomandibular joint disorders (TMD), causing stiffness and pain in the jaw joint. When teeth are properly aligned, they are they easier to keep teeth clean, making them less prone to decay and gum disease. Proper alignment can ease or prevent symptoms of TMD and correct issues with speech and chewing. By completing orthodontic treatment, you can improve both the look and health of your smile.