There is no fastest way to correct protruding incisors in adults, if you want to correct them, you can choose to undergo simple orthodontic treatment or combined orthodontic and maxillofacial treatment. 1. Simple orthodontic treatment: Adults with protruding incisors need to actively seek medical treatment for dental examination, if the protruding situation is not serious, you can usually choose to undergo simple orthodontic treatment, through simple orthodontic treatment can make the teeth position back to normal, simple orthodontic treatment time is relatively longer, it may take about 1~2 years. 2. Combined orthodontic and maxillofacial treatment: If the protruding teeth are more serious and there are bony deformities, simple orthodontic treatment can not achieve a better result, and combined orthodontic and maxillofacial treatment may be needed. In the process of orthodontic treatment, it is better not to eat too hard food, you need to eat some light and soft food.