Silliness can definitely help, but from my experience, kids also respond surprisingly well to understanding the 'why' behind brushing. Even young ones can grasp simple explanations about germs or cavities if you frame it right. My grandkids got pretty interested when we talked about teeth being like tiny castles they need to protect from little invaders. Sometimes giving them a sense of responsibility or purpose works better in the long run than just entertainment...though admittedly, a goofy dance never hurt anyone.
I totally get the castle analogyβwish someone had explained it to me like that when I was little! Honestly, as someone who's always been anxious about dental visits, I think giving kids a sense of control and understanding early on is huge. Silliness helps ease the nerves (even mine, haha), but knowing why they're brushing can make dentist trips way less scary down the road. Maybe a combo of goofy dances and tiny castle defenders is the sweet spot...