You would think this would be something a dentist knows. I've asked scores of dentists this very question and no one has an answer. It's got to have a name.
It's fairly common. The teeth don't touch the ones adjacent. There's a tooth and then an open half space and then another tooth and so on. The whole mouth is like this. LOL I'm sure there MUST be a name for this. I've been trying to find the name for this for more than 20 years.
I acknowledge that this is, surely, a genetic condition but I left "genetic condition" out of my title. It may or may not be an esoteric medical term. I just want to know what it's called. Further, I'm not talking about people with gaps, Elton John style, between their two front teeth. I'm talking about gaps between every tooth in their head.