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A comparison of rotary and reciprocating nickel titanium preparation in simulated root canals

Round, Simon Giles (2011)
M.Phil. thesis, University of Birmingham.

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To evaluate simulated root canal preparation using two different preparation techniques- classical Pro Taper and reciprocating. Operators prepared resin blocks which were either uncovered or covered.
Inexperienced operators were used to prepare simulated canals with ProTaper nickel titanium rotary files using an electric motor in both the classical ProTaper sequence of four files in a continually clockwise rotating action, and in a reciprocating clockwise and anticlockwise fashion using only one file from the ProTaper sequence- the F2. Canals were either covered with tape to obscure vision, or left uncovered. Photographs were taken of the canals before and after preparation, and the images superimposed for comparison. The canals were evaluated against the five requirements of root canal shape described by Schilder in 1974.
This research demonstrated that the classicalProTaper technique of four files was more likely to produce a preparation meeting Schilder's criteria for ideal mechanical shaping of root canals when compared to the reciprocating technique using one file. It also demonstrated that when the resin blocks were covered, it was more likely that a canal preparation would meet Schilder's criteria for ideal mechanical preparation of root canals than if they were uncovered.

Type of Work:M.Phil. thesis.
Supervisor(s):Lumley, Phillip J.
School/Faculty:Colleges (2008 onwards) > College of Medical & Dental Sciences
Department:School of Dentistry
Subjects:RK Dentistry
Institution:University of Birmingham
ID Code:3085
This unpublished thesis/dissertation is copyright of the author and/or third parties. The intellectual property rights of the author or third parties in respect of this work are as defined by The Copyright Designs and Patents Act 1988 or as modified by any successor legislation. Any use made of information contained in this thesis/dissertation must be in accordance with that legislation and must be properly acknowledged. Further distribution or reproduction in any format is prohibited without the permission of the copyright holder.
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