There is periapical radiolucency of MB (Fig.3,7) with the thickened overlying sinus membrane (Fig.3,5,6 (*), as compared to that over the tooth #3 (Fig.6)). There is also radiolucency at the furca of the tooth #14.
Xin Wei, DDS, PhD, MS 1st edition 01/22/2018, last revision 03/25/2018