I agree with the other doctors. A orthodontic eval is necessary prior to any treatment. Dr Gocke
At this age if you use an expander the actual expansion will be only due to tooth movement and not actual bony movement. For small corrections this may be ok. Otherwise a surgically assisted rapid palatal expansion is needed.
You need to have the dental implants placed first and after the swelling has subsided and they have integrated and been tested for integration with the final restoration, then you do the facial implants. Also, your facial implants are sometimes screwed into the bone so if you have a dental implant in the region of the facial implant the surgeon needs to know this. Ask your surgeon if he or she can do both the procedures for you. Good Luck!