Himachal Dental

Rotory Endodontics

Rotory endo

Chemo-mechanical preparation is an integral part of conservative root canal treatment . However, during the last decade several new types of continuously rotating instruments were introduced. The evolution from hand- to engine-driven techniques was facilitated by manufacturing rotary instruments from nickel–titanium with its array of special properties . Initially, hand instruments were fabricated from nickel– titanium.Initially Nickel–titanium files, particularly the engine-driven types,were prone to fractures. Various test for Torque measurements cyclic fatigue tests, torsional moments and forces exerted during actual canal preparation were carried out using straight canals . However, nickel–titanium instruments are particularly helpful for successful shaping of curved canals. Several studies using simulated canals in plastic blocks have repeatedly proved that canal anatomy influences the performance of instruments .
To date, several torque-controlled low-speed motors have been introduced to help reduce the incidence of separation when using rotary instruments (TriAuto ZX, Morita, Dietzenbach, Switzerland; Endostepper, S.E.T., Germering, Germany; ART-Teknika, Dentsply Maillefer).The efficacy of torque-controlled motors can be improved by relying on data collected during canal preparation.

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