You might try what you suggested but I can imagine it might be difficult. I wanted to make a general comment that teeth really often reflect a persons overall health status. I would give your child abdominal packs for a while. I read, I think in Dr McGarey's book of giving them daily to a child with hyperactivity, for two weeks and they were cured of that for the rest of their life! I personally have been using them for about six months and am just overwhlemed with how excellent they are and the improvements in my own health. I think these will improve your child's health and this will result in lowered tooth decay in the long term.