The lower right 2nd molar of a 50-year-old lady is non-salvageable (Fig.1). The mesial residual root has mobility II. Extraction should not be too difficult using proximators (Karl Schumacher) and a Rongeur. The gingival tissue between the mesial and distal roots will be saved and most likely pushed distally.
Xin Wei, DDS, PhD, MS 1st edition 12/22/2014, last revision 12/22/2014