A default replacement for the bare walls using walls from The Sims 4: Restoration Kit. They're my favourite walls from one of my favourite kits, and I thought they looked even better in The Sims 2. I used @psychosim's replacement as a base.
I make a few mods every now and then to make the game a little more difficult and slightly realistic. One of the ways I try to achieve this is by adding prices to interactions to simulate sims actually using up a product (like @lamare-sims' Supply Mod, but more limited in its scope).
I based this override on a.deep.indigo's Personal Sim Hygiene mod - and I'd highly recommend giving it a go as it incentivises sims to take care of their dental hygiene in a simple way (and their Dental Care mod expands on this with more gameplay elements).
§3 charge of the 'Brush Teeth' interaction
Place in your mods (and/or custom overrides) folder!