Drilling instrument for tooth implants has rotary head with teeth with front and rear flanks with concave and convex alignment

摘要

The rotary operating head driven into the jaw-bone has teeth (3) protruding radially to the rotational axis (1) depending on the width of the anchoring-hole for a tooth implant. The front flank (4) of the teeth rises in a wedge shape in the rotational direction so that bone tissue (6) between the teeth is expelled from between the teeth. The flank of the teeth is convex from the base up. The back tooth flank is concave (5)