Efectividad de insertos de ultrasonido ULTRA X EIGHTEETH® en eliminar la burbuja apical y barrillo dentinal

Abstract

The effectiveness of irrigation depends on the working mechanism of the irrigant. Objective: determine the effectiveness of the Ultra X Eighteeth® ultrasonic system inserts in eliminating the apical bubble and removing dentinal debris. Method: A total of 52 human single-rooted teeth with complete apex formation were selected. The working length was determined and they were sealed apically with enamel. The canals were prepared with the sequential wave one gold system, irrigated, and periapical radiographs were taken to confirm the presence of the apical bubble. The teeth were decorated and distributed into three groups (n=7). The blue, silver and gold tip inserts activated for 30 seconds. For the removal of dentinal debris, 31 remaining teeth were selected (10 for the control group and 21 for the experimental group), the control group did not receive activation, the other groups received activation of the irrigant for 30 seconds. Results: The findings were not fully favorable for ultrasound. With blue insert, removal smear layer was in apical third and middle third; with silver insert, it was observed in all teeth in the middle third and with gold insert removal in the apical part was in a tooth, and in middle third it was 6 teeth. Conclusion: Neither insert removed the apical bubble for 30 seconds, nor the silver insert proved to be the most effective in removing the smear layer.