Can i get rid of my underbite and crossbite at 16?

Underbite+Crossbite: It depends on what's causing the underbite and crossbite. At 16, it could be due to an underdeveloped upper jaw or overgrowth of the lower jaw. Beyond the age at which the bones fuse, around puberty, nonsurgical treatment like palatal expansion and headgear tend to relapse. Usually, surgery is required to advance and expand the upper jaw, or to move the lower jaw back. There's much more to tell!

Yes: There are many options depending upon the specifics of your case. Options may include extraction of certain teeth, widening of the upper jaw, possible jaw surgery to correct a severe underbite, orthodontic braces certainly. Seek out an orthodontic consult and see what is available to you!

See an Orthodontist: At 16 some crossbites can be corrected with just braces but if the crossbite is large and a result of growth of the jaws you might need surgery in addition to braces.

Yes: Crossbites and underbites can be 'dental' or orthopedic. In both cases there are treatments that will help.

Absolutely!: Yes. Usually this can be done by braces alone. Sometimes surgery might also be needed.

Absolutely!: A very good time to address this!

Perhaps: Very often it is best to begin treatment of a Class III malocclusion after all lower jaw growth has ceased. See a qualified Orthodontic Specialist for initial examination (usually free) and an explanation of the best course of treatment for your individual malocclusion.