For a black triangle correction radiograph is a must to check the height of the bone, basis on that there are options like bone grafting or tissue grafting. Keyhole surgery is a good option in your case. Per surface, more than 0.5 mm IPR is not recommended.
Moving teeth ALWAYS affects the face. Extracting teeth in order to straighten the remaining teeth will have an even bigger effect on the face. Unfortunately, when bicuspids are extracted there is often an adverse effect on the TMJ and the airway as well. Your concerns are extremely common for p...
Without photographs I am limited in my ability to answer your question. Your best option is to ask this question to the dentist doing your orthodontics.
