Fig.3: Preop CBCT coronal section of the upper left 1st molar edentulous area.  The bone density around the impending implant (4.1x8 mm) is low: the cancellous bone being porous with no or thin cortex. So bone expansion and condensation is required.

The bone height is also limited.  Therefore sinus lift is necessary.  Osteotomes or bone expansion kit can carry out these two tasks simultaneously.

B: buccal; L: lingual.

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Xin Wei, DDS, PhD, MS 1st edition 07/10/2013, last revision 07/12/2014