Sinus Access Window Bone for Khoury technique
My colleagues and me have seen convincing results for lateral ridge augmentation with sinus window bone plates. Now I am alarmed because I`ve had three failures in a short time.
First case: I came to conclusion that a pressure from provisional bridge (and manipulations for fixing it, taking out..) has caused the bone resorption. Impression was taken prior to the ridge augmentation. All other cases worked very well out, but then…
Other two cases, both of them done with a very thin sinus window bone plates.
For mandibular cortical bone plates the thickness doesn`t play a crucial role. But it seems that a softer, more elastic posterior maxilla bone obviously requires a certain thickness. It doesn`t resist a pressure, so it doesn`t maintain a space.
We are going to evaluate all cases (some still healing), but since I praised high-spirited sinus window bone plates I feel responsible to warn you.
This post is not complete (yesterday I simply had not stuff to take intraoperative images) and one case I can not find, I`ll complete it this week.