The remaining buccal root with overlying gingiva (Fig.8 *) is more capable of holding bone graft in place than the gingiva alone.  The immediate implant (Fig.9 green) can be placed equigingival lingually without too much risk of buccal implant thread exposure. 

Necessity Last Next Xin Wei, DDS, PhD, MS 1st edition 10/13/2019, last revision 10/13/2019