1,720,999 research outputs found
The Measurement of Open Apices of Third Molars to Test Chronological Age in Living Subjects Over 18-Year-Old
No full textAfter attending this presentation, attendees will be able to evaluate
having arrived at a birthdate of 18 years of age in living subjects.
This presentation will impact the forensic community by
illustrating a new method to determine if an individual is 18 years of age.
This paper concerns a method for assessing adult age based on the
relationship between age and the third molar maturity index (I3M)
which is related to the measurement of the open apices of the third
molar. Furthermore, this method was compared to those based on
Demirjian’s stages G and H. The sample consisted of 906 caucasian
individuals aged between 14 and 23 years (53.6% females and 46.4%
males). Orthopantomographs (OPGs) were analyzed by two observers
and calibrated by means of the concordance correlation coefficient for
the reproducibility of the third molar maturity index (I3M) and k
statistics for reproducibility of the Demirjian stages. Probabilities of an
individual of being older than 18 years of age (adult age) were derived
using the measurements of the third molar maturity index (I3M). These
results were exploited to set a threshold value to assign an individual to
juvenile or adult age. A cut-off value of I3M=0.08 was taken. The
sensitivity of this test was 70% and specificity was 98%. Furthermore,
the proportion of individuals with a correct classification was 83%. The
results of the test showed a better specificity when compared to the
choice of stage G and a better sensitivity when compared to the choice
of stage H for adult age.
Age Determination, Thir
AgeEstimation WORKSHOP
No full textThe workshop on AgEstimation project is thought to teach partecipants how and when apply the recently published new age evaluation methods
Precision and Reliability of Pulp/Tooth Area Ratio (RA) of Second Molar as Indicator of Adult Age
No full text
AgEstimation Project
No full textPresentation of the AgEstimation Project. The recently published new age estimation methods are illustrated and discussed in the presentation
Age Estimation in Children by Measurement of Open Apices in Teeth
No full textThis paper concerns a method for estimating the age of children based on their teeth. The sample consisted of 455 Italian white children (213 boys, 242 girls) aged between 5 and 15 years. The purpose of the present investigation was to present a method for assessing chronological age based on the relationship between age and measurement of the open apices in teeth. Pearson’s correlation coefficients between age and these variables showed that the correlations between age and the open apices in teeth were significant and negative. Furthermore,gender and the number of teeth with the apical end of the root canals completely closed (N0) showed a significant correlation with chronological age. With the aid of a stepwise multiple regression model, a linear relationship between open apices, N0, and age was shown. Statistical analysis indicated that these morphological variables explain 83.6% of the variations in estimated chronological age. The median of residual errors between the actual and estimated ages was −0.035 years [interquartile range (IQR)=1.18 years]
Lo studio del terzo molare per la stima dell’età in un campione di popolazione italiana
No full textLa consulenza tecnica nella stima della maggiore età: organizzazione di un protocollo di accertamento
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