Tooth Numero Sept

Yeah, yeah, yeah, language mixing going on.
ANYway, we have another toofer in. Well, Chunk has another toofer. Up top, #7 by that chart that I posted back in July. So, that makes 7 teeth, with no other teeth close to eruption as far as I can tell. Although, even though this new tooth has finally broken thru, he's still biting and doing the whiny/pulling on his mouth thing. Which makes me wonder - are some babies' gums sore the entire time the tooth is growing down into place? How bad does it hurt? Is it like braces getting adjusted sore? Or just a constant dull ache kind of sore?
Wouldn't it be nice if we could magically know the answers to the whole teething thing?