Orthodontic treatment depends on your present condition and most importantly on the cause which leads to 10 mm of overjet. Nowadays many orthodontist take precautions in extraction of premolar ,until unless its very necessary. So much overjet can be caused by your unbalanced jaw growth or bcoz of your some habit or because of your narrow uppper jaw and high palate. So finding the cause and then deciding the mode of treatment is important. Beside invisalign
you can select regular braces Ortho
treatment, that will cost you much cheaper with very good result.