Fig.4: The just placed implant (7x17 mm at the site of the upper right 2nd molar) is too close to the implant at the site of the 1st molar (between arrowheads).

The mal-placed implant will be backed up and re-inserted while the trajectory is being changed.

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Xin Wei, DDS, PhD, MS 1st edition 04/29/2014, last revision 01/19/2018