The tooth #17 is symptomatic 1.5 months post sedative filling (Fig.1 S).  If the long implant (5x13 mm) may not be feasible distal with guide, RCT seems to be a better alternative (Fig.2-5).  To overcome the curved and fine mesisal (M) canals, straight line access will be provided (Fig.4,5 black areas).

Access Last Next Xin Wei, DDS, PhD, MS 1st edition 09/22/2019, last revision 09/22/2019