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NCJ Number: 220408 Find in a Library
Title: Mandibular Morphology as an Indicator of Human Subadult Age: Interlandmark Approaches
Journal: Journal of Forensic Sciences  Volume:52  Issue:5  Dated:September 2007  Pages:1015-1019
Author(s): Daniel Franklin Ph.D.; Andrea Cardini Ph.D.
Date Published: September 2007
Page Count: 5
Sponsoring Agency: Applied Research Ctr (ARC)
Oakland, CA 94607
Grant Number: DP0557157
Type: Report (Study/Research) ; Test/Measurement
Format: Article
Language: English
Country: United States of America
Annotation: This study examined whether the height of the back portion of the lower jaw ("ramus") is an accurate marker for estimating age at death, using a sample of 79 subadults (ages 1-17) of South-African Bantu and African-American origin of known age and sex.
Abstract: The results show that ramus height can be used to predict age in the subadult skeleton with accuracy that approaches predictions based on dentition (the number and kind of teeth and their arrangement in the mouth). These new measurements are quick and simple to perform. The applicability of these measurements in other populations requires additional research. The authors are currently involved in such research with a range of populations. The linear measurements used in the study were obtained from a dataset of 38 variables recorded in 3-dimensions using a Microscribe G2X portable digitizer running Inscribe-32 software. The measurement of ramus height was obtained with a mathematical conversion of the three-dimensional landmark coordinates (condylion superior, the most superior point on the mandibular condyle; and gonion, the most lateral external point of junction of the horizontal and ascending rami of the lower jaw). A series of regression analyses were then performed in order to predict age by using the measurement of ramus height. 4 tables, 2 figures, and 48 references
Main Term(s): Criminology
Index Term(s): Age determination; Bone analysis; Death investigations; Forensic sciences; Investigative techniques; Juvenile victims; Victim identification
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