There are two basic types of frenums: a lingual and a labial frenum.

The lingual frenum is located between the base of the tongue and the floor of the mouth. It comes in all different sizes, and if the frenum restricts the movement of the tongue (a condition called “tongue tied”), a surgical procedure called a frenectomy may be performed. The purpose is to free the tongue and allow proper speech, swallowing and movement.

In the upper arch, the tissue that connects the gum to the lip is called the labial frenum. If it is unusually wide or long, it may connect through to the gum tissue between the teeth and extend to the front portion of the roof of the mouth. When the upper frenum is too wide or long, it can create a space between the two front teeth.