Reanalysis of 3 D images (Fig.7 (frontal view), 8 (posterior view), 9 (lateral view), 10 (lateral view with section) of CT taken 1 year 3 months earlier shows that the mesiodens (*) and the permanent lateral incisors (2) are palatal to the permanent central incisors (1) and canines (3) and the deciduous central incisors (A).  The supernumerary teeth do block the eruption of the permanent central incisors (Fig.10).

When to Remove Last Next Xin Wei, DDS, PhD, MS 1st edition 02/02/2019, last revision 02/02/2019