7 she got her first bottom 2 at 4 months then 3 on the top at 6 months then one more top on and one more bottom on came in around 7-8 months. I'm pretty sure she has another bottom one coming in.
Mine got her bottom 2 at 4 mo. Last week throughout the week she got 4 on top and over weekend found 2 more coming on on bottom. She had a high fever over the wkend due to all of them :-(