title: Three dimensional surface analyses of pubic symphyseal faces of contemporary Japanese reconstructed with 3D digitized scanner.
abstract: Three dimensional pubic bone images were analyzed to quantify some age-dependent morphological changes of the symphyseal faces of contemporary Japanese residents. The images were synthesized from 145 bone specimens with 3D measuring device. Phases of Suchey-Brooks system were determined on the 3D pubic symphyseal images without discrepancy from those carried out on the real bones because of the high fidelity. Subsequently, mean curvatures of the pubic symphyseal faces to examine concavo-convex condition of the surfaces were analyzed on the 3D images. Average values of absolute mean curvatures of phase 1 and 2 groups were higher than those of phase 3-6 ones, whereas the values were approximately constant over phase 3 presumably reflecting the inactivation of pubic faces over phase 3. Ratio of the concave areas increased gradually with progressing phase or age classes, although convex areas were predominant in every phase.
authors.affiliation: Forensic Science Laboratory, Iwate Prefectural Police Headquarters, Morioka 020-8540, Japan.
authors.forename: Hitoshi
authors.initials: H
authors.lastname: Biwasaka
authors.forename: Kei
authors.initials: K
authors.lastname: Sato
authors.forename: Yasuhiro
authors.initials: Y
authors.lastname: Aoki
authors.forename: Hideaki
authors.initials: H
authors.lastname: Kato
authors.forename: Yoshitaka
authors.initials: Y
authors.lastname: Maeno
authors.forename: Toyohisa
authors.initials: T
authors.lastname: Tanijiri
authors.forename: Sachiko
authors.initials: S
authors.lastname: Fujita
authors.forename: Koji
authors.initials: K
authors.lastname: Dewa
mesh_terms: D000293:Adolescent; D000328:Adult; D000365:Age Determination by Skeleton / Q000295:instrumentation / Q000379:methods*; D000368:Aged; D000369:Aged, 80 and over; D044466:Asian People; D002648:Child; D005260:Female; D018732:Forensic Anthropology / Q000295:instrumentation / Q000379:methods*; D006801:Humans; D021621:Imaging, Three-Dimensional / Q000295:instrumentation / Q000379:methods; D007564:Japan; D008297:Male; D008875:Middle Aged; D011630:Pubic Bone / Q000033:anatomy & histology* / Q000000981:diagnostic imaging; D011631:Pubic Symphysis / Q000033:anatomy & histology* / Q000000981:diagnostic imaging; D055815:Young Adult
keywords: 3D curvature; 3D digitized scanner; Forensic anthropology; Pubic symphyseal face; Suchey–Brooks method