Never made CC before- question =/

Hi everyone! I have been playing Sims since Sims 1 and I always look for CC online whenever I want something for my game, but this is the first time I wanted to try to make some CC of my own. I think it is probably hard for me since I have never worked with mesh editing or anything like that but since the Vampire GP game out for Sims 4 I have wanted to make some CC. I basically want to make 3 extra versions of the Vampire fangs that they already have. I can use the texture from the game pack but I don't know how to edit/add on to the Teeth mesh.

I don't mind doing the CC myself if I can get some help with how to go about making it (like a guide), and I also don't mind if someone thinks it's a cool idea and can already edit the teeth mesh files themselves. I Think since these teeth are longer like the new crooked teeth that it is a bit more involved than the normal sims teeth editing.

Basically, since the game pack only has the 4 vampire fang styles I want to add an Underworld style, Vamp Diaries style and True blood style. The first two can use the canines the Vamp GP already uses and then I/we would just need to add the two laterals, and then True blood style is just two laterals by themselves. So not incredibly hard but for me I have no idea how to go about making them.

I appreciate any help <3 Thanks.