abrupt lead edge

English to German Law/Patents Medical: Dentistry Patent für Zahnimplantat

Claim 10 of the patent recites a dental implant in which the at least one external thread includes an auger thread. The patent indicates that an auger thread has a lead edge 32, for example.
Lead edge 32 of external threads 14 is depicted and clearly shows the auger-like aspect. Rather than collapsing to a screw point as is typical in other dental implants, external threads 14 begin with *abrupt lead edge* 32.