I am planning crestal sinus lift with Versah drills. This patient had root amputation a couple of years prior, and some grafting, probably xenograft. I removed the rest of the tooth 5 months ago.

My concern is that the Versah protocol of sinus lift includes osseodensification. If I follow the protocol I m afraid to fracture the xenograft bone when I work CCW and expand bone. Actually I have enough VL bone so I don't need expansion. I' m tninking about some modification of protocol maybe working in CW and when approach sinus with final bur then turn CCW. Or maybe just follow the protocol? Thoughts?

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