Splintered Teeth

[Oddods]

I have an issue with my top 4 front teeth. I feel splinter like sharpness when I run my tongue between the gaps of my teeth. This increases after flossing.
The problem is, many dentists I've asked to look at this say there is nothing there. Even x-rays don't show anything.
They are definitely there.
Has anyone patient or dentist come across this?
It's been irritating me for over 20 years now.

 

[honestdoc]

You may have gum recession where the cementoenamel junction may feel like you described. Have your dentist identify the source of your recession which may be from brushing too hard.