After osteotomy is increased with a drill for 4.5 mm implant, a 4.5x11.5 mm UF implant is placed at more ideal level with insertion torque of 50 Ncm (Fig.5).  A 5.5x4(3) mm cemented abutment is placed.  

When the patient returns 3.5 months postop, the buccal gingival margin is within normal limit.  The mesial abutment margin (Fig.9 *) is subgingival (white dashed line: gingival margin) and subcrestal.  The abutment is changed from 5.5x4(3) to 4.5x4(4) mm before impression.

Bone Expanders for Sinus Lift Last Next

Xin Wei, DDS, PhD, MS 1st edition 04/04/2016, last revision 03/01/2021