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Description
The K4 Anchor Concept uses a sharp, three bladed Thread Cutter 20-25 microns wider all round than the matching threaded shank. The unique K4 cutting profile ensures there will be no lateral contact between the crest of the threads and the canal wall. The space so created becomes a cement buffer. The overall parallel configuration and the buffer layer of cement contribute to the distribution of forces. The K4 post does NOT flex, it is rigid. It cannot bend away from the preparation, producing optimum retention and stress distribution. The K4 Anchor achieves a passive fit in the preparation, it can easily be screwed in by hand; try the same with self-threaded posts and feel the difference.