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Table 1 Comparison between normal-rooted and cone-rooted teeth based on RL, PRW, RSA, RV, RSA/RL, and RV/RL

From: A novel three-dimensional quantitative assessment method for abnormal root morphology of the maxillary premolars in vivo on cone-beam computed tomography

  RL PRW RSA RV RSA/RL RV/RL
NRT 11.62 ± 1.19 0.48 ± 0.12 236.88 ± 27.93 316.93 ± 49.89 20.42 ± 1.86 27.34 ± 3.87
CRT 11.65 ± 1.54 0.33 ± 0.16 207.98 ± 27.80 253.40 ± 41.98 17.88 ± 1.31 21.76 ± 2.43
P 0.91 0.000 0.000 0.000 0.000 0.000
  1. Data are presented as the mean ± standard deviation
  2. RL, root length; PRW, parameters of root width; RSA, root surface area; RV, root volume; NRT, normal root teeth; CRT, conical root teeth