My dentist referred me to a periodontist who informed me that I have severe bone loss in my upper teeth and ALL of them have to be removed and I would either need a removable denture which I do NOT want or implants and a combination of crowns and bridges which I was told would be about 30K. The periodontist had me get a CAT scan done. Would a dentist or periodontist be able to tell from a photo of the CAT scan that was done if I really need to have all my upper teeth removed?