Comparative analysis of 2 resonance frequency measurement devices: Osstell Mentor and Osstell ISQ.

used theterm functional ankylosis to describedimplant’s stiff fixation to the maxillarybone. Besides, they pointed out thatthe new bone was directly placed ontothe implant surface, demanding atrau-matic placement and implant primarystability, which is considered essentialnowadays for bothosseointegration andimmediate loading protocols. Giventhat the available parameters to assessosseointegration are clinical (the pres-ence of stable marginal bone level andabsence of mobility in the fixation),osseointegration is assessed accordingto stability mechanic criteria. Primarystability wouldthenbethe mainparam-eter that influences the implant loadingprotocol and treatment results.