Orthodontics in adults must be extremely careful, we cannot count on growth capacity and excessive force can harm gums, bone and roots. The basic indication for this type of orthodontics is the prevention of dental crowding, since it originates a reduction of supporting bone and tooth loss over the years. The goal of this treatment is to conserve the pieces healthy until the end of life. In some cases, conventional treatments are not enough and we must resort to surgical orthodontics. With these patients, we perform an orthodontic treatment before and after surgery. With surgery, we can corrects large bone defects that cannot be solved otherwise. Having well-aligned teeth allows for a proper chewing of food, and helps having a good digestion, eliminates a propensity to bruxism, so the teeth do not wear out as fast, teeth that are well placed contact all at once, avoiding overloading, which may cause muscle pain and often headache and earache, it is easier to maintain good hygiene when teeth are properly aligned. The visible and smooth surfaces of the teeth can be properly cleaned with a brush and the contact points between teeth with dental floss or an interproximal brush, poorly aligned and crowded teeth originate decay and gum problems, the best way to achieve a lasting good dental aesthetics is to have well-aligned teeth, with less plaque (food) there are fewer chances of having cavities.