8/16/2023 0 Comments Rotary files in endodonticsCyclic fatigue takes place when the file is freely rotating in a canal and flexes until fracture occurs. There are two primary factors that contribute to rotary NiTi file breakage: cyclic fatigue and torsional stress. However, while providing improved canal access, these types of flexible, mechanical files can be fragile and possibly break within the canal ( Figure 1). Rotary NiTi files are commonly used instruments for performing endodontic procedures. The purpose of this article is to discuss the causes of separated endodontic rotary NiTi files, explain how to prevent this problem from happening, describe the removal of a broken file, and discuss the prognosis for instances where the separated file cannot be removed. Understanding why and how endodontic file breakage occurs, including the two main factors that contribute to this type of incident, can help clinicians employ prevention strategies and overcome this predicament if it does occur. Separated rotary nickel-titanium (NiTi) files can also pose an increased risk of post-endodontic complications. Knowing that a portion of the endodontic file has broken off into the canal can be momentarily debilitating for the clinician. Of all the procedural problems that can occur when practicing dentistry, endodontic file breakage is one dilemma that not only can lead to extreme stress for the clinician, but can cause great anxiety for the patient as well. Midwestern University College of Dental Medicine Technique and instrumentation considerations to reduce adverse events Preventing and Remedying Endodontic Rotary NiTi File Breakage
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