How can I utilize ultrasonics to facilitate locating calcified canals?
A. Piezoelectric ultrasonics in conjunction with the ProUltra ultrasonic instruments (Dentsply Tulsa Dental) provide a breakthrough in exploring for and identifying calcified, aberrant or previously missed canals. Ultrasonic systems importantly eliminate the bulky head of the conventional handpiece which notoriously blocks light and obstructs vision. Ultrasonic instruments are used with a light touch in a brush-cutting manner to progressively sand away precise amounts of dentin. Microscopes and ultrasonic instruments have led to microsonic techniques that have significantly improved vision, control and safety when searching for difficult to find canals. Specifically, the abrasively coated ProUltra ENDO-2 or 3 is the ultrasonic instrument of choice for troughing along grooves such as between the MB1 and MB2 orifices. Traditionally, clinicians have searched for the MBII system within the groove off the MB1 orifice when in fact the MB2 is mesial to this groove, under the shelf of overlyin
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