DD1 (2.9) has fallen off a slide today. I wasn't there but MIL said that there was lots of blood and they thought that she had just caught her bottom lip on her tooth.
It's now a few hours later and she's not complained of being in any pain but when I cleaned her teeth I noticed that the skin between her lip and gum is torn and that the gum around her four front teeth is black. Her lip is also now swollen.
DP doesn't think that a trip to the doctors/dentist is needed but I disagree. Although, I'm not sure that there's much that they could do.
I don't want to be seen to be creating a fuss as poor MIL feels awful as it is!
If the teeth appear to be in their normal positions, not pushed in, and not at all wobbly, you don't need to worry too much. Damage to the gum is temporary and will heal surprisingly quickly. To help the gums heal even faster, you can wash them with a solution of table salt in warm water. She won't like the taste very much, but it goes as soon as the wash has finished.
If you're worried, call your dentist and discuss it with them.
My DD was standing on a ride-on toy when she was about this age & fell on her face on a concrete floor. She had a lot of blood, swollen gums & a fat lip as you describe; also there was a triangular cut in her bottom lip.
Our neighbour at the time was a nurse, so I asked her what to do, & she said there was no point going to eg A&E or a dentist as there really wasn't anything they could do about it.
Certainly it all subsided at the time with no further damage evident, except that every time she fell over for a couple of years (& she always seemed to fall on her face) the bottom lip cut re-opened.
She is grown-up now with lovely teeth & just an almost invisible scar on her lip
I fell over when I was 18 months old and banged my front teeth, it knocked the nerves in the tooth and it went black. Not only that it affected my adult tooth as well and it started to grow through my nose! They had to remove the bone above my teeth to let the adult tooth move down. Then I had 6 years of braces. True story