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A quantitative and qualitative analysis of ultrasonic versus sonic endodontic systems on canal cleanliness and
Valerie Kanter1, Emily Weldon, Uma Nair
1Department of Endodontics, University of Florida, College of Dentistry at Gainesville, Gainesville, FL 32610-0436, USA.
Objective:
The purpose of this study was to compare 2 irrigation techniques by evaluating canal cleanliness and obturation of lateral/accessory canals.
Study Design:
Seventy-five extracted canines were instrumented to a size #40/0.06 taper. The EndoActivator (EA) was compared with an ultrasonic unit for final irrigation. Each unit was used for 1 minute each with 6.15% NaOCl and 17% EDTA. A control group received syringe irrigation. Thirty teeth were sectioned and evaluated for debris removal and open dentinal tubules at 3/5 mm from the apical foramen with a scanning electron microscope. Forty-five teeth were examined for obturation of lateral canals.
Results:
The EA was significantly better in removing debris at all levels when compared with other treatment groups (P < .05) and resulted in obturation of significantly more numbers of lateral canals (P < .01.)
Conclusions:
The EA provided better obturation of lateral and accessory canals and resulted in less remaining debris.
