Apically extruded debris and irrigant with two Ni‐Ti systems and hand files when removing root fillings: a laboratory study

Abstract

All the instruments produced apically extruded debris and irrigant. The two Ni-Ti instruments produced less apically extruded debris and irrigant than hand files. A 1.5% agar gel can provide resistance to apically extruded debris and irrigant and may represent the clinical situation better than the empty tube model.

Evaluation of apically extruded debris during root canal retreatment with several NiTi systems

“…There is only one reported study evaluating the Reciproc system in terms of apical debris extrusion in endodontic retreatment (Lu et al . ). Lu et al .…”

Efficiency and apical extrusion of debris: a comparative ex vivo study of four retreatment techniques in severely curved root canals

“…On the contrary, Lu et al . () demonstrated that Reciproc files produced significantly more extruded debris and irrigant than Mtwo retreatment files working with continuous rotation. As a different file system was compared with Reciproc in that study, the findings of the present study are not comparable to their results.…”

Filling Material Removal with Reciprocating and Rotary Systems Associated with Passive Ultrasonic Irrigation

“…The use of irrigating solutions during root canal preparation is crucial for proper cleaning, irrespective of the system or technique used for it (13)(14)(15). In this study, during each change of instrument, 2 mL of 2.5% sodium hypochlorite was used to irrigate the root canals, irrespective of the systems or irrigating protocol used.…”

“…The time to perform root canal preparation when using single-file systems, such as Reciproc, is significantly reduced. Therefore, the amount of irrigating solution used is also reduced, compromising chemical debridement (13)(14)(15). Such a fact might explain the worst performance of the RS when compared to the PTR system.…”