Estimation of the mandibular dimensions from linear cranial measurements for use in craniofacial reconstruction: A preliminary study.
Facial identification
Forensic anthropology
Forensic facial approximation
Forensic facial reconstruction
Missing mandible estimation
Journal
Legal medicine (Tokyo, Japan)
ISSN: 1873-4162
Titre abrégé: Leg Med (Tokyo)
Pays: Ireland
ID NLM: 100889186
Informations de publication
Date de publication:
Nov 2020
Nov 2020
Historique:
received:
19
03
2020
revised:
21
07
2020
accepted:
31
07
2020
pubmed:
17
8
2020
medline:
11
11
2020
entrez:
16
8
2020
Statut:
ppublish
Résumé
A missing mandible is a common problem in facial identification cases requiring forensic facial approximation or reconstruction. The Sassouni and Sassouni-Plus methods which are currently used to predict the missing mandible from the cranium produce low levels of accuracy. This study proposes a new method for the estimation of the overall dimensions of the mandible based upon linear cranial measurements, the proposed method has the potential to be utilised in the facial reconstruction of a range of adult skulls with dentition. 21 measurements were taken from a sample of 90 skulls, 44 male, 43 female and three juvenile, originating from 9 different geographical areas. Ordinary least-squares regression, hierarchical cluster analysis and analysis of variance (ANOVA) were used to investigate trends in the data and to produce equations for the estimation of condylar height, corpus length and anterior height. When tested the equations produced an overall mean error of 0.09 mm with a standard deviation of ±4.84. The proposed method offers an improvement upon the currently used methods. It can be used to estimate the overall mandibular dimensions with a good level of accuracy.
Sections du résumé
BACKGROUND
BACKGROUND
A missing mandible is a common problem in facial identification cases requiring forensic facial approximation or reconstruction. The Sassouni and Sassouni-Plus methods which are currently used to predict the missing mandible from the cranium produce low levels of accuracy.
AIMS
OBJECTIVE
This study proposes a new method for the estimation of the overall dimensions of the mandible based upon linear cranial measurements, the proposed method has the potential to be utilised in the facial reconstruction of a range of adult skulls with dentition.
SAMPLE AND METHOD
METHODS
21 measurements were taken from a sample of 90 skulls, 44 male, 43 female and three juvenile, originating from 9 different geographical areas. Ordinary least-squares regression, hierarchical cluster analysis and analysis of variance (ANOVA) were used to investigate trends in the data and to produce equations for the estimation of condylar height, corpus length and anterior height.
CONCLUSION
CONCLUSIONS
When tested the equations produced an overall mean error of 0.09 mm with a standard deviation of ±4.84. The proposed method offers an improvement upon the currently used methods. It can be used to estimate the overall mandibular dimensions with a good level of accuracy.
Identifiants
pubmed: 32795932
pii: S1344-6223(20)30104-8
doi: 10.1016/j.legalmed.2020.101770
pii:
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
101770Informations de copyright
Copyright © 2020 Elsevier B.V. All rights reserved.