In this video, we learn how to tie a surgical knot in someone's mouth. First, you will push through the gum into the tooth root, you will do this with surgical string and two surgical pliers made for this. Then, you will push the needle and thread through on the other side of the tear until you can tie a knot. Tie this knot several different times until both sides of the tear are closed. Once you have both sides closed, you have successfully tied a surgical knot. This is easily done when the tooth has been removed from the mouth and a tear is left.