When my sister was small, she saw my mother take out her dentures, and tried to take her own teeth out. When they wouldn't come out, she was upset because hers were"nailed on" - she believed she was the only one whose teeth didn't come out on command!
A childhood belief about general

others believed things like this
- I used to believe that if I didn't brush my teeth at night, ants would crawl into my mouth and eat my teeth.Anon
- Until I was about 8 I believed that your back teeth keep growing in until you have a full circle of teeth.Anon
- I used to believe that eating burnt toast would make your teeth whiter and would brush your teeth for you.— Natasha
- When I was very young, I assumed that false teeth were taken from dead people's teethAnon
- Until I was around 8 or 9 years old, I thought dentists took your teeth out and replaced them with new teeth.— Verapamilo
- My mother told me that the tooth fairy would only come if I brushed my teeth.— Dale