hi P.,
My 2 sons seemed to get their teeth around 6 or 7 months, but my daughter who is 15 months didn't get her first tooth until she was almost 9 months! All my friends had babies around her age and they all had teeth earlier than her.
Her 2 bottoms came in first. Just seemed to appear one day. She didn't get the next 2 on the top until she was about a year old! About 2 months ago she cut the 4 sides top & bottom. And just last week she started cutting the top molars! (yikes!)
I have a friend who had a daughter who didn't cut teeth until 11 months. (her daughter is 14 now, and teeth are normal) I think it just depends on the child. If it overly concerns you, you can always ask your pediatrician. But sounds normal to me. Get ready when they do come in it will seem like they are all coming in one right after another!!
Oh and btw, I have a 6 yr old boy who has not lost any teeth yet. None are even loose yet. I am not concerned though, my oldest who will be 14 in May lost his teeth late too. My 6 yr old doesn't mind very much, but it did bother my oldest like your daughter. I told him that it would happen in time and that when all his friends had no more teeth to give to the tooth fairy, he'd still be getting visits from her and money. Although this didn't comfort much, but made him feel a bit better.
These are my experiences, hope it helps some! Good luck on both. :)
Oh I almost forgot, but kids can teethe starting months, weeks or days before they actually cut the teeth. Fun, huh?! ;)