Apical extrusion of intracanal bacteria following use of two engine‐driven instrumentation techniques

Abstract

Both engine-driven nickel-titanium systems extruded bacteria through the apical foramen.

The Effect of Three Different Rotary Instrumentation Systems on Substance P and Calcitonin Gene-related Peptide Expression in Human Periodontal Ligament

“…However, it is important to point out that periodontal ligament inflammation is multifactorial; and it may be influenced by several features of root canal preparation, such as mechanical stress, debris and/or irrigant extrusion, and apical patency verification (12)(13)(14)(15)(16).…”

“…It also has been shown that all root canal preparation techniques cause some degree of debris extrusion (11,(13)(14)(15)(16). However, the amount of apically extruded irritants may vary according to the technique and the characteristics of the instrument used (3).…”

Efficacy of Laser Activated Irrigation on Apically Extruded Debris with Different Preparation Systems

“…All the preparation methods have showed varying degrees of extrusion, [2][3][4][5][6][7] attributed to various factors such as root canal anatomy, irrigation method, amount/flow rate, penetration depth of irrigant, and selected file type or instrumentation method. Common findings showed that methods involving a push-pull filing motion usually create a greater debris extrusion than engine-driven rotary motion.…”

Apical extrusion of intracanal biofilm using ProTaper Gold, WaveOne Gold,Twisted File Adaptive, OneShape New Generation and K3XF

“…Sterilized glass vials were entirely filled with 10 mL of 0.9% saline solution (NaCl). Then, each stopper together with a tooth and needle was placed to its Eppendorf tube, and the tubes were fitted into vials (10). The test apparatus was shown in figure 1.…”