Efficiency of EndoVac System to Remove Artificially Placed Dentin Debris

Objectives: The purpose of this study was to evaluate the effectiveness of Endovac system to remove artificially placed dentin debris

Methods: Twenty extracted single rooted permanent teeth were allocated randomly into two groups. The pulp chambers were accessed and the canals were prepared by #40,. 06 taper Profile system. After canal preparation, teeth were split longitudinally into two halves. Three standard saucer-shaped depression of 0.3 mm in diameter and 0.5 mm in depth were cut in the root canal at 2, 4, and 6mm from the apex to simulate uninstrumented canal irregularities. Each depression were filled with dentin debris mixed with 5.25% NaOCl to simulate a situation when dentin debris accumulates in the uninstrumented canal extensions. Two halves of each tooth were reassembled using wire and sticky wax. In group 1, the canal was irrigated by using the Endovac system, which uses negative pressure to deliver irrigating solutions to working length. In the other group, canal was irrigated with 27 gauge irrigating needle. All teeth were irrigated with sodium hypochlorite and EDTA according for a predetermined amount of time. The amount of remaining dentin debris in the depressions were evaluated by a microscope and SEM

Results: Both irrigation methods reduced the debris score significantly. The debris score was stastistically lower after the Enodovac system than after conventional irrigation.

Conclusions: This study showed better debridement by using the Endovac system compared with conventional irrigation.