It appears that it is more reasonable to have a single implant, slightly larger (2.5 or 3 mm), at #26, with the coronal end slightly mesial (Fig.7) with a cantilever bridge.  If the teeth #23 and 24 fail in the future, a normal one will be easily converted.

1 or More Last Next Xin Wei, DDS, PhD, MS 1st edition 10/14/2018, last revision 01/27/2019