26 years old is still necessary for orthodontic treatment, although it has missed the best orthodontic age of 12 years old, but the sooner you straighten your teeth, the better. If you want to be corrected, you have to be treated in time, because there are several hazards of occlusal disorders: first, if there is always crowding of teeth and misalignment, it is likely to greatly increase the risk of dental caries, and even the risk of periodontitis will gradually increase. Secondly, it can cause temporomandibular joint disorders and muscle ankylosis, which can be avoided by correcting the occlusal relationship. It is not too late to correct your teeth at any time, it can be considered as the best age in the future, if you correct your teeth after 30 years old, the correction time may be even more extended, so 26 years old is still young, you must be active in correcting the disorders of the occlusion.