Implants with Sinus Lift in Crestal Approach

A 48-year-old lady has 4 missing teeth: #3, 14, 15 and 31.  The sinus floor at #3 is thinner than that at #14 and 15.  Sinus lift will be tried on the left side first.  Bone height at #14 and 15 is 3 and 4.5 mm, respectively (Fig.1 (CBCT sagittal section).  Initial osteotomy depth will be 2 and 4 mm, while final one 4 and 6 mm.  The length of UF implants will 8.5 and 10 mm (Fig.2); the diameter will be 5.5 and <5.5 mm (Fig.3,4 (coronal sections)).

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Xin Wei, DDS, PhD, MS 1st edition 12/12/2015, last revision 12/13/2015