I have a nanny and every moring and night she says to my kids "brush your teeth already?." (she is Indonesian and her english is not very good.)
I really would have thought a nanny would have noticed teeth, especially if it was obvious that Brit wasn't really paying much attention. Unless there was a huge turnover of nannies and every-one thought every-one else was doing it.
I believe depending on your type of teeth some kids who go to bed with a bottle can get bad decay even if they brush their teeth 2 times a day - because the milk will be there all night perhaps?
As for constipation - happened to my youngest son, he ate the same as every-one else actually probably more fruit than my daughter - some kids just need a bit of help in that area. (via prunes, etc).
I do think Britney is an uninterested mother, I was a young mum - with no clue, but I read books and worked it out. Lets hope she works it out
she really needs to dissapear for a year or 2 and get her act together. If she did her come back would still be successful.