Sammy's dentist

Tomorrow Sammy has a dentist apt. again..I am feeling like a very bad parent and wondering how I could have changed her teeth. I thought that I was brushing her teeth better, flossing her teeth, but was I doing what I should have done? How could I have kept her from having to go through this painful process...All I can do right now is try to correct what is wrong and get the dentist to assist me in getting her teeth back in order. As a parent you feel very helpless in doing what is right for your children, but still failing. You feel very guilty and afraid..see Sammy has had to have a permanent tooth crowned at her young age, a tooth, baby, pulled before it was time to come out and another tooth filled. Tomorrow she has to have more work done on her other side of her mouth which is going to be more fillings. My other two children have had great teeth, no cavities for one and only one for the other....does she just have bad teeth, bad genes or something else, my fault, not getting her in the dentist sooner because of insurance, because of just putting it off thinking that I would call tomorrow or the next day to make an apt. What ever is the reason, I can only hope that I will improve the quality of her teeth and help her make sure that they stay in good condition from now on.....