All to often I hear students and young dentists immediately try to determine a working length once the canal has been identified. There is a proper procedural sequence with specific chamber conditions that will allow for the most accurate working length measurement of the canal.

I have even heard some endodontists recommend trying to determine an accurate working length directly from a measurement of the root by means of a radiograph!

The importance of complete canal disinfection cannot be overstated. Complete accurate working length measurements are a valuable aspect of endodontic therapy.

This root measured to be 25.5mm.

What are your favorite means of electronic canal length determination?

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Success in Endodontics 2.0 is an evidence-based online endodontic textbook that shortens the learning curve to do predictable and successful endodontics. This comprehensive, continuing education program was designed for the general dentist who has completed less than 5,000 root canal procedures.