Well, I'd say yes, if the tooth is still mostly intact.
If the tooth is dead, then it would likely be rejected and simply fall out.
Regeneration would replace teeth and so on, Heal just fixes the parts of you that might be damaged, but are still part of the "living" you.
And the description of Heal makes it somewhat profound... If cast on the average person, you would probably lenghten their lives considerably, just from killing off any errant cancer cells and removing clogs from veins, tuning the heart and resetting the liver to mint condition etc.
Lingering or chronic infections in lungs, joints or other places. Poof.
A whole life's worth of bad habits made good, just like that.
We might be far off from emulating Regeneration, but Heal, damn, we've got a ways to go.