Your dentist is wrong, if it is possible I would get a second opinion. A second dentist might also be willing to treat your dd in the office. My ds is 19months and just had some fillings done with in office sedation too. His dentist also felt the cavities were due to night nursing but I strongly disagree and am not willing to consider night weaning at this point. You might do a search over on kellymom, there are a few good articles on there. Also check out the Dental subforum of Health and Healing.