Journal of Conservative Dentistry
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ORIGINAL ARTICLE
Year : 2014  |  Volume : 17  |  Issue : 2  |  Page : 129-132

Comparative evaluation of apically extruded debris during root canal preparation using ProTaper™, Hyflex™ and Waveone™ rotary systems


Department of Conservative Dentistry & Endodontics, Kamineni Institute of Dental Sciences, Sreepuram, Narketpally, Nalgonda, Andhra Pradesh, India

Correspondence Address:
Jayaprada Reddy Surakanti
Department of Conservative Dentistry & Endodontics, Kamineni Institute of Dental Sciences, Sreepuram, Narketpally, Nalgonda - 508 254, Andhra Pradesh
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0972-0707.128045

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Background and Aims: Extrusion of any debris during endodontic treatment may potentially cause post-operative complications such as flare-ups. The purpose of this in vitro study was to assess the amount of apically extruded debris during the root canal preparation using rotary and reciprocating nickel-titanium instrumentation systems. Materials and Methods: In this study, 60 human mandibular first premolars were randomly assigned to 3 groups (n = 20 teeth/group). The root canals were instrumented according to the manufacturers' instructions using the Reciprocating single-file system WaveOne (Dentsply Maillefer, Ballaigues, Switzerland) and full-sequence rotary Hyflex CM (Coltene Whaledent, Allstetten, Switzerland) and ProTaper (Dentsply Maillefer, Ballaigues, Switzerland) instruments. The canals were then irrigated using bidistilled water. The debris that was extruded apically was collected in preweighed eppendorf tubes and assessed with an electronic balance and compared. Statistical Analysis Used: The debris extrusion was compared and statistically analyzed using analysis of variance and the post hoc Student-Newman-Keuls test. Results: The WaveOne and ProTaper rotary instruments produced significantly more debris compared with Hyflex CM rotary instruments (P < 0.05). Conclusions: Under the conditions of this study, all systems that were used resulted in extrusion of apical debris. Full-sequence rotary instrumentation was associated with less debris extrusion compared with the use of reciprocating single-file systems.


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