Hello, 25 years old is not a problem, but it may take longer. Compared with children, adults will have more restrictions when receiving comprehensive orthodontic treatment. The problem of occlusal teeth is caused by maxillary dysplasia, because the face and bones of adults have been basically shaped and can only be cured by orthodontic treatment. Only the combination of orthodontics and maxillofacial surgery can correct the deviation of adult jaw development. I hope I can help you.