Journal of Conservative Dentistry
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ORIGINAL ARTICLE
Year : 2017  |  Volume : 20  |  Issue : 2  |  Page : 64-67

Comparative evaluation of apically extruded debris during root canal instrumentation using two Ni-Ti single file rotary systems: An in vitro study


1 Department of Conservative Dentistry, Mahsa University, Selangor, Malaysia
2 Department of Conservative Dentistry and Endodontics, K.M. Shah Dental College, Sumandeep Vidyapeeth, Vadodara, Gujarat, India

Correspondence Address:
Kiran Singbal
Department of Conservative Dentistry, Mahsa University, Bandar Saujana Putra, Jenjarom, Selangor
Malaysia
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0972-0707.212236

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Background: Apical extrusion of debris during instrumentation is detrimental to the patient. Aim: The aim of this study was to evaluate the apical extrusion of debris during root canal instrumentation using two single file rotary Ni-Ti systems. Materials and Methods: Thirty freshly extracted mandibular premolars with straight roots were sterilized and divided into two groups instrumented using: One Shape rotary Ni-Ti system with Endoflare orifice shaper (Group 1) and Neo-Niti rotary Ni-Ti system with C1 orifice shaper (Group 2). Preweighed Eppendorf tubes fitted for each tooth before instrumentation. During instrumentation, 1 mL of distilled water with a 30-gauge needle was used to irrigate after every instrument. Tips of the tooth were irrigated with 2 ml distilled water after removal from Eppendorf tubes. The total volume of irrigant in each group was the same 8 ml. All tubes were incubated at 68°C for 15 days and subsequently weighed. The difference between pre- and post-debris weights was calculated, and statistical analysis was performed using independent t-test and level of significance was set at 0.05. Results: The difference between pre- and post-weights was significantly greater for the One Shape system. Conclusions: The Neolix Niti single file was associated with less extrusion compared to One Shape single file system.


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