In an effort for me to brush my teeth when I was younger, my mom told me that cavities were little white bugs (similar to head lice) that would live on my teeth. She even got our dentist in on it, so of course I believed them.
A childhood belief about general

others believed things like this
- I used to believe my dentist could give me a shot to straighten my teeth and prevent cavities.— sircigar
- I used to believe that eating burnt toast would make your teeth whiter and would brush your teeth for you.— Natasha
- 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 when i was about 4 (now 15) that dinosours died because they didn't brush their teeth— gullable
- I used to think that cockroaches would visit your house if you didn't brush your teeth.Anon