When we say bite, what we're talking about is the way your upper and lower jaw come together. Your upper teeth should fit slightly over your lower teeth and the points of your molars should fit the grooves of the opposite molar. If your jaw lines up like this, you most likely have a healthy bite.

Should your back teeth touch when biting?

The backs of the upper front teeth should rest in gentle contact with the fronts of the lower ones. This means that the upper teeth are in front of the lowers when the bite is closed. The edges of the upper teeth should not bite directly on the edges of the lower incisors or behind them (known as an underbite).

When I bite my molars don't touch?

A posterior (back teeth) open bite happens when a patient's back teeth don't touch when the front teeth are closed. Sometimes an open bite is caused by thumb-sucking or a tongue thrust and can make taking a bite of certain foods like pizza or a chicken wing difficult.