It depends. Kaylee started at 4 months and cut her first tooth at 8 months (I know she started at 4 months cause the doctor said her gums looked "full" and said he guessed she would cut a tooth anytime).
She cut her first tooth without me knowing, and then 5 days later she screamed for 2 days and cut her 2nd tooth.
At 10 months old her third tooth started coming in, and that took a week.
Now at 11 months her top teeth are coming in - but those are the teeth that the doctor thought she would cut first. It has taken 6 months for those to drop down and actual start coming though.
It all depends on the baby :)
at 4:34 PM on Apr. 14, 2009