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Table 3 Volumes and surface areas of post-preparation simulated canals (n = 10)

From: Shaping ability of protaper next compared with waveone in late-model three-dimensional printed teeth

Instrument Volume (mm3) Surface area (mm2)
Mean ± SD Min-Max Mean ± SD Min-Max
ProTaper Next 3.21 ± .04 3.16–3.27 21.22 ± .77 20.24–22.70
WaveOne 3.37 ± .06 3.24–3.46 22.67 ± .61 21.89–23.63
P value <.001d <.001c
  1. cIndependent-samples T test (P < .05)
  2. dMann-Whitney U test (P < .05)