Press Fit	Tissue-Level	Bone-Level		IBS

To improve cosmetics, a bone-level implant is used (Fig.3, bone/Titanium ratio: 50/50, threads less aggressive).  The coronal micro-threads do not engage to the cortex as efficiently as the body threads.  To enhance primary stability, a better thread patterned implant is chosen (Fig.4, bone/Titanium ratio: 70/30).   Its coronal threads are able to engage to the cortex for primary stability.

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Xin Wei, DDS, PhD, MS 1st edition 08/13/2016, last revision 08/12/2017