Know your history:
The Implant Industry Eventually Copied Dr. Niznick's Patented Internal Design: Dr. Niznick's internal, anti-rotational, screw-retained connection is acknowledged as being the most stable connection in the industry. Over the years, numerous implant manufacturers have attempted to copy this patented feature in one form or another. After ensuing litigation and/or arbitration, the following companies have either obtained licenses on the patent, or have been legally compelled to refrain from making products that infringe Dr. Niznick's U.S. Patent 4,960,381: Calcitek, Lifecore, 3i®, Steri-Oss, Straumann, Astra, Altetec, Park Dental, Sapkos Implant Company and Osteo-Implant Corporation (OIC®). A number of foreign companies that manufacture Screw-Vent clones have also been prevented from selling their products in the United States, such as four Israeli companies, Alpha Bio, Hi-Tech, MIS and Medigma, and the German company, Bego. Friadent and Straumann obtained licenses on Niznick's internal wrench-engaging patent in 2000. Steri-Oss developed the internal Tri-Lobe internal connection in 1998 and Nobel Biocare acquired Steri-Oss in 1999. Its ads featuring the Replace Select implant claimed that "Internal connection - what every dentist wants".
In 1999, Straumann Dental added an internal octagon to the conical connection of the ITI implant. Paragon responded by filing a patent litigation lawsuit and by developing an implant with a compatible platform and surgical protocol. Dr. Niznick introduced this new line of one-stage implants in 2000 and called it SwissPlusT. The standard SwissPlus implant features the basic design of the Straumann's ITI syn-Octa® implant, but with additional self-tapping features and a fixture mount that also serves as the transfer and abutment.