Purpose: To provide further knowledge of the root canal anatomy of mand 2nd molar to success root canal treatment
N=149 mand 2nd molar
•Teeth were collected and stored in water after extraction then prepared and rendered transparent using the techniques described by Manning. •Afterward, roots were examined with a stereo dissecting microscope
•Data were collected according to: canal type; apical foramen position; presence and position of transverse anastomoses; presence of a delta of canals at the apex.
•A clinical case related to 30-year-old Vietnamese lady was referred to the Endodontic treatment
Most highlighted Results:
1.They found 33 teeth had one root, and 19 had C-shaped canals
2.In C shaped canals, the most frequent have three canals
3.Lateral canals were found in 19 roots – while transverse anastomoses in 15 with C-chaped
4.Position of apical foramen was away from the apex in 17 roots, and apical deltas in 16 roots
5.C-shaped canals were found more frequently (P<0.02) in Asians.
6.In clinical case a C-shaped canal was observed w/a single canal
The presence of a high incidence of transverse anastomoses, lateral canals and apical deltas in the C canal system makes treatment difficult.