Three-dimensional characterization of root morphology for maxillary incisors

Carly A Ahlbrecht, Antonio Carlos de Oliveira Ruellas, Beatriz Paniagua, Juan A Schilling, James A McNamara and Lucia Helena Soares Cevidanes

PLOS ONE, 2017, vol. 12, issue 6, 1-16

Abstract: The aim of this study was to test the reproducibility of three-dimensional (3D) surface models of maxillary incisors and to propose a characterization of root morphology. The sample was comprised of pre-treatment cone-beam computed tomography (CBCT) images of fifty-five patients. The CBCTs were used to construct 3D surface models of the maxillary incisors. The reproducibility of surface models was tested by repeated construction of them by two observers. A 3D surface model that corresponded to the average of all lateral and all central incisors was generated. 3D surface distances and vector differences were calculated for each individual tooth and the average of the teeth considered. The corresponding points on the 3D surface mesh for each subgroup were compared statistically to those of the neutral subgroup using shape analysis MANCOVA and Hotelling’s t-statistic (p

Date: 2017
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0178728

DOI: 10.1371/journal.pone.0178728

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