Is there an alternative to palatal expansion surgery in adults?

I am 29 years old. I have a posterior crossbite on the left side of my mouth. I also have crowding in the front (both upper and lower jaw) with top right incisor pushed out of alignment. I have all my teeth including wisdom teeth. The ortho suggested I have the expansion surgery with the possibility of first premolars still needing to be removed. Is surgery the only option to correct the crossbite and misaligned incisor?