You can get pretty far without perfect teeth. Look at the bottom row for Kevin Costner or Mel Gibson. Or look at Steve Buscemi (who clearly is not basing his career on perfect looks anyway but rather on strong character acting).
Anyway, it depends. Bad teeth will really hurt you for commercials. For character roles, they have the potential to make you stand out if they're unique without being an unpleasant distraction (eg. something like Jewel's teeth).
The point is, you don't want them to be something that doesn't fit the characters you'll be auditioning for. And you don't want them to be so difficult to look at that they prevent you from being believable on film as that character or have them "steal the show."
Having "some broken front teeth" sounds like something to the point where you might want to get them fixed. But maybe it is just the choice of wording that makes it sound kind of extreme.
Anyway, it depends. Bad teeth will really hurt you for commercials. For character roles, they have the potential to make you stand out if they're unique without being an unpleasant distraction (eg. something like Jewel's teeth).
The point is, you don't want them to be something that doesn't fit the characters you'll be auditioning for. And you don't want them to be so difficult to look at that they prevent you from being believable on film as that character or have them "steal the show."
Having "some broken front teeth" sounds like something to the point where you might want to get them fixed. But maybe it is just the choice of wording that makes it sound kind of extreme.