Since the ridge is wide at the site of #2, Magic Split is used for access (flapless) and bone expansion. The bone is so soft that there is no resistance until 4.3 mm Magic Expander (at 9 mm depth) is used for 9 mm (Fig.6). A 5 mm tap drill is stable (Fig.1).
Xin Wei, DDS, PhD, MS 1st edition 06/16/2017, last revision 02/16/2019