It is based on the measuring electrical resistance, and the image of dance into a PC to measure the depth of the root canal for teeth. It is used to measure the frequency for the depth of the root canals of teeth.
It is used to measure the electrical principles. The resistance and impedance He came to measure the depth of the root canal. It is used to measure the frequency of the depth of the root canal.
The principles of electrical measurement There will be resistance and impedance into the measurement of the depth of root canals. The use of frequency measurement for the depth of root canals.