Patent ID: 7435087

Claim:
A method of extracting a root of a tooth, comprising: inserting a pin into the root and affixing the pin to the root; connecting a flexible pulling element to the pin affixed to the root by hooking the pulling element into the pin, the pulling element comprising one of a wire, a string, or a rope bent at a substantially right angle along a diverting part, the pulling element being functionally linked to a tensioning device; hooking the pulling element into the tensioning device; pre-tensioning the pulling element between the pin and the tensioning device before hooking the pulling element to the pin or the tensioning device; applying a pulling force to the root via the pulling element using the tensioning device so as to extract the root, wherein the pulling force is transmitted from a portion of the pulling element at the diverting part to the root via the pulling element in a direction substantially parallel to the longitudinal axis of the root, and is transmitted from the tensioning device to the portion of the pulling element at the diverting part via the pulling element in a direction substantially perpendicular to the longitudinal axis of the root, the tensioning device being partially inserted into and supported in the mouth; wherein said pre-tensioning of the pulling element comprises adjusting a tensioning support moveable substantially at a right angle in relation to the longitudinal axis of the root, the tensioning support being adjustable in relation to a base body of the tensioning device; and loosening the root by sudden activation of the tensioning support prior to said applying the pulling force to extract the root.