Endodontics Clinical Class at AHEAD Academy

Today clinical class in endodontics was conducted by Dr. Nitin Singh. The topic of discussion was “Canal negotiation and working length determination in RCT”. The root canal anatomy of incisors, premolars and molars was emphasized. An accurate working length determination of root canal during endodontic treatment is very essential. It makes endodontic treatment easier for an operator to remove necrotic tissue and prepare canals precisely. Various methods have been used to establish correct working length. These include use of conventional or digital radiography, tactile method and moisture on paper point. All of these methods have their limitations. Radiographs are subjected to distortion and magnification. It comprises accurate location of root apices. They are technique sensitive in exposure and interpretation. They also provide a two dimensional image of a three dimensional structure which may not represent real position of apical region. Furthermore, in many cases with conventional radiography, it is difficult to establish the actual length of the canal with a two dimensional image. It becomes even more difficult to establish correct working length with radiography when root canal system is superimposed radiographically by anatomic structures. In such cases, electronic method using apex locator is very useful.