Impedance type electronic apex locators.
Lumley
P
P
School of Dentistry, Birmingham, UK.
D003762:Dental Instruments; D017097:Electric Impedance; D006801:Humans; D009811:Odontometry / Q000295:instrumentation; D018915:Root Canal Preparation / Q000295:instrumentation*; D019227:Tooth Apex / Q000033:anatomy & histology*