The patient and parents’ perspective of orthodontic treatment need and their perception of orthodontic appliances throughout treatment. Do socioeconomic and psychosocial factors have an impact?

Hi, I need a literature review please for my dissertation proposal. I have attached a file with my introduction, aims and objectives to help. I’ll upload the papers I need to be included. I’ve also included two papers on qualitative research if that helps. Please let me know if there are any problems.