Here's my workaround for teeth not showing up, a bit brutal, but it works:

Load any vanilla race of desired sex, check the character has the teeth on them. Save this character as temporary preset. Make sure it has "SC_Mouth" in mod list section. Load your desired race, load that temporary preset, then load your character's preset, then do whatever you want.

P.S. Subscribe to Pewdiepie.

================================================DO NOT REUPLOAD THIS MOD TO OTHER SITES WITHOUT MY PERMISSION. IF YOU WANT TO SHARE OR USE MY FILES, CONTACT ME FIRST!================================================================================================Description:Actual 3D teeth for humanoid races, standalone.These were made for my Daud project, but I decided to tear him apart (a tiny bit).================================================Features:- Brand new teeth mesh and textures.- Compatibility patches for Expressive Facial Animations (both female and male ) and Female Facial Animation ================================================Requirements:- RaceMenu, no exceptions.- Any existing mouth retexture, tho it's not mandatory since the inner part is not that visible unlike teeth.================================================Installation:Choose between "for ENB" and "non ENB" versions, then use NMM or extract everything in DATA folder.- If you play without enb, choose non enb verion.- If you play with enb, choose for enb version;- If you play with enb, you chose for enb verion, but it's hella bright, use non enb version.I recommend using enb version with enb enabled.If you disable your enb in game, you may find that your teeth shine a lot - it's normal, just enable enb again.If you don't like the shine anyways, just use non-enb version of this mod.After you've installed the mod, open RaceMenu, navigate to HEAD section, search for mouth part, move the slider to the rightmost end.If teeth don't appear while moving slider, reload your preset.================================================Uninstallation:NMM or remove mod's folders.================================================Known issues:- Teeth won't show up upon opening RaceMenu. You need to reload your character preset or move mouth part slider to the rightmost end.- I don't know if RaceMenu has extended sliders for mouth, but if anything, this mod is not compatible with any non-vanilla sliders.================================================Frequently Asked Questions:Q: SSE?A: Nope.Q: I don't use RaceMenu, I use ECE, can I use this mod?A: I don't know, to be honest. I've no idea. You probably can't use it. And no, I can't make a patch for ECE, for I don't know it at all.Q: Does this mod replace existing stuff?A: Nope.Q: Do these work with custom races?A: Should be? I tried it out with custom races mod, it worked just fine. There may be mishaps, but reloading presets solves most problems.Q: Teeth shine like hypergiants.A: This mod is supposed to work with ENB only, but being the kindness I am, I've included a non-ENB version. There's a comparison between two versions in the image section.Q: Can I use it with %special snowflake mouth retex%?A: Yep.Q: The mod does not work.A: Make sure you reloaded your preset after opening RaceMenu, move mouth slider in HEAD section back and forth, otherwise I dunno.It may happen that you don't have mouth part and any other additional sliders at all, in this refer to a workaround in "Known issues" section of this description.Q: ENB?A: My own.The ones who did not read the description will be divided by zero. It ain't that hard.================================================Terms of use:- You are not allowed to reupload this mod to other sites without permission;- You are not allowed to reuse any assets of this mod without permission;- You are not allowed to port this mod to Special Edition;- You don't have to ask me if you want to do something with this mod for private use;If you have questions regarding permission, feel free to ask.================================================Credits:- Zbrush, SP, Blender, PS CS6;- Blabba's Citrus heads - how to make this whole thing standalone;- Thanks to Artsick for testing.