[Questionable method for determining root canal lengths].
Apart from radiographic methods, the use of electronic devices for determining root canal lengths is widespread. Based on physical considerations and simple in vitro tests the basic principles of endometry are discussed. Since the electrochemical processes at the electrodes are incalculable, the measured result is fortuitous. As an alternative to the radiographic determination of root canal lengths endometry must be rejected.
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D003762:Dental Instruments; D003786:Dental Pulp Cavity / Q000033:anatomy & histology*; D004582:Electronics, Medical; D006801:Humans; D009811:Odontometry / Q000379:methods
Die Endometrie--eine fragwürdige Methode der Längenbestimmung des Wurzelkanals.