Your teeth are all meant to have some space in between them.
Some teeth have only a tiny space and may be very hard to floss.
Some teeth have more space and may be very easy to floss.
But all teeth are supposed to have space between them.
Take your tongue and run it along the back side of your bottom front teeth.
Does it feel like a wall of teeth or does it feel like individual teeth?
If it feels like a wall of teeth with very little space in between then you need a cleaning.
Below is a picture of some front lower teeth before and after they were cleaned.
The yellow stuff in between the teeth is build up that is too hard to
be cleaned off by your tooth brush alone.
The only way to get this stuff off is by a trained dental hygienist or dentist.
It doesn't look very good but that is not the worst part.
The worst part is the bacteria that can be harbored in your mouth
and thus pose health risks, some severe, throughout your entire body.
Before the cleaning.
After the cleaning.