The buccal plate of #11 is missing, but it is possible to place a narrow immediate implant because of the wide alveolus (Fig.2).  CT检查显示颊侧（图二B）骨板缺失，软组织也退缩严重。能即刻种植（绿色）吗？

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Xin Wei, DDS, PhD, MS 1st edition 12/03/2020, last revision 12/03/2020