Why does RCT Fails in Abutment Tooth?

Magnification of Fig. 1 shows that #32 abutment tooth has periapical radiolucency (*) associated with both the mesial and distal roots.  The root canal fillings are short (black <).  The pulpal chamber is not filled (white >).  In addition, the mesial margin is open (yellow <) .  Return to main text

Xin Wei, DDS, PhD, MS 1st edition 09/20/2011, last revision 10/02/2011