title: Applicability of 3D-CT facial reconstruction for forensic individual identification.
abstract: Computed tomography (CT) is used in several clinical dentistry applications even by axial slices and two and three-dimensional reconstructed images (2D-CT and 3D-CT). The purpose of the current study is to assess the precision of linear measurements made in 3D-CT using craniometric patterns for individual identification in Forensic Dentistry. Five cadaver heads were submitted to a spiral computed tomography using axial slices, and 3D-CT reconstructions were obtained by volume rendering technique with computer graphics tools. Ten (10) craniometric measurements were determined in 3D-CT images by two examiners independently, twice each, and the standard error of intra- and inter-examiner measurements was assessed. The results demonstrated a low standard error of those measurements, from 0.85% to 3.09%. In conclusion, the linear measurements obtained in osseous and soft tissue structures were considered to be precise in 3D-CT with high imaging quality and resolution.
authors.affiliation: Department of Social Dentistry, School of Dentistry, University of São Paulo.
authors.forename: Sara dos Santos
authors.initials: Sdos S
authors.lastname: Rocha
authors.forename: Dalton Luiz
authors.initials: DL
authors.lastname: Ramos
authors.forename: Marcelo de Gusmão Paraíso
authors.initials: Mde G
authors.lastname: Cavalcanti
mesh_terms: D002102:Cadaver; D002508:Cephalometry / Q000379:methods; D005145:Face / Q000033:anatomy & histology*; D005147:Facial Bones / Q000033:anatomy & histology; D005149:Facial Expression; D018732:Forensic Anthropology / Q000379:methods*; D005553:Forensic Dentistry / Q000379:methods; D006801:Humans; D021621:Imaging, Three-Dimensional; D015203:Reproducibility of Results; D012984:Software; D036542:Tomography, Spiral Computed