Loki is 6 months, on the the bottom right side he has all 6 ruptured, but 2 not very far in, on the bottom left only 5 ruptured. On the top he only has the rearmost (not surprising there are less as he lost his upper 2 canines last also).

How long will it take before he has all his molars (correct in assuming 6 on each side after the canines?) as he looks funny with a big gap after them.

He just lost his second upper canine last week (it was retained when the tooth ruptured a while ago)