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Fig. 2 | BMC Oral Health

Fig. 2

From: A comparison of the shaping ability of three nickel-titanium rotary instruments: a micro-computed tomography study via a contrast radiopaque technique in vitro

Fig. 2

Three-dimensional panels of the simulated canals in the PTU (ProTaper Universal, top), Reciproc (middle) and K3XF (bottom) groups. a Preoperative reconstruction of the simulated canal; b Postoperative reconstruction of the simulated canal; c Superimposed reconstructions of the simulated canal; d The points at which the canal width was measured after superimposition of pre- and post-operative images. The green colour indicates the canal before instrumentation, and the red colour represents the canal after instrumentation

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