A Rational Approach to Sinus Augmentation: The Low Window Sinus Lift

Figure 9

The preparation of the antrostomy and the elevation of the sinus membrane. First, the window is drawn on the vestibular bone wall with the aid of the surgical guide (a). The window is no more than 6 mm high (b). After performing the osteotomy (c), the sinus membrane is fully elevated (d).

(a)

(b)

(c)

(d)