Ocena porównawcza dynamicznych i biernych systemów przepłukiwania kanału korzeniowego w aspekcie skuteczności oczyszczania kanału oraz ryzyka przepchnięcia środka płuczącego poza wierzchołek kanału
Several methods have been used to evaluate the cleaning effectiveness of the irrigation, but some of these methods have many limitations. Analysing the hydroxyproline content of the irrigant yields excellent quantification but does not permit a visual inspection of the canal or the condition of the walls and tubules [25]. Evaluating the irrigation effectiveness by flushing the bead form gel has the disadvantage of the bead particles settling in the apical region, and gravity preventing the canal from filling with a homogenous fluid [26]. The radiographic images of radiopaque contrast medium exposed as the material clears from the canal are difficult to interpret [27]. Hence, in the present study, a scanning electron microscope was used to evaluate the presence of debris in the wall of the root canal after using different irrigation systems. The debris was evaluated using ImageJ software, which gave accurate results. The software is extensively used in medical imaging and analysis because of its functions such as edge detection, particle analyses and other sophisticated operations in all image formats and the capability of converting to quantitative measures [28]. In our study, the minimal apical extrusion of the irrigant solution using the EndoVac method is in agreement with earlier studies [3, 17, 19]. Mitchell et al. [29] found that the frequency of apical extrusion of the irrigant was dependent on the type of root canal irrigation system and the size of the apical preparation. The syringe and slotted-needle irrigation resulted in the greatest extent of [...]
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