My mother had dentures from just shortly after she got out of high school. Therefor I grew up watching her take her teeth out every night and of course she explained that she got them when her teeth fell out.
Until I was 10 years old I thought everyone's teeth just fell out at a certain age and then you got dentures.
I was really bummed when I found out the truth. I'd had big plans to get an extra set for myself with fangs.....
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 around 8 or 9 years old, I thought dentists took your teeth out and replaced them with new teeth.— Verapamilo
- I used to believe that when you lost your teeth, all of them fell out at the same time.Anon
- I used to believe that eating burnt toast would make your teeth whiter and would brush your teeth for you.— Natasha
- Until I was about 8 I believed that your back teeth keep growing in until you have a full circle of teeth.Anon
- When I was very young, I assumed that false teeth were taken from dead people's teethAnon