Fig.2 (CT sagittal section): The bone height at the site of the tooth #2 is 5.8 mm.  Initial osteotomy is to be created with width of 4 mm.  The mesiodistal widths of the tooth #3 and future crowns at the site of #2 are 10.5 mm and 8.4 mm (estimated), respectively.

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Xin Wei, DDS, PhD, MS 1st edition 09/29/2013, last revision 09/29/2013