A. The first thing to do is to have nay gum disease treated.  Once this is done there are many possibilities to improving your smile – gum grafting, veneers, tooth whitening etc.  I have and do treat many people who feel they have no possibility of looking forward to a new smile but there are often treatments that can make the impossible a reality.  Well done for stopping smoking and you now need to find a dentist who will be able to give you your smile back again.  The British Academy of Cosmetic Dentists is a good place to start  – please visit their web site.