It’s not too late to get your teeth straightened at 30. There is no strict age limit for orthodontic treatment, and you can have orthodontic treatment at the age of 30, but if you miss the best time for orthodontic treatment, the final orthodontic effect may not be as good as if you have had orthodontic treatment when you were a minor. Orthodontics can treat all kinds of malocclusion, such as crowding, sparse teeth, misalignment of upper and lower teeth, etc. Orthodontics at the age of 30 can be treated by fixed orthodontics, invisible orthodontics, etc. If the patient suffers from a disease that affects bone metabolism, the patient can have orthodontic treatment. If the patient suffers from diseases that affect bone metabolism, such as diabetes, blood system diseases, thyroid dysfunction, etc., the presence of severe periodontitis, depression and other patients are not recommended for orthodontic treatment. In addition, orthodontic treatment is not recommended for people who are pregnant and breastfeeding. Orthodontic treatment at age 30 can be done in the hospital to check the condition of the teeth and under the guidance of the doctor.