Fig.2 (coronal section of CBCT through the tooth #5): When a soft tissue level implant (4.5 or 5.0 x20 mm) is used, the buccopalatal angulation may be more difficultly controlled.  An angled abutment is to be used, as large as 30 degree. The depth of osteotomy is 20 mm from the gingival margin.

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Xin Wei, DDS, PhD, MS 1st edition 03/02/2013, last revision 01/19/2018