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Ameloglyphics: A possible forensic tool for person identification following high
temperature and acid exposure
#MMPMID27051220
Juneja M
; Juneja S
; Rakesh N
; Bhoomareddy Kantharaj YD
J Forensic Dent Sci
2016[Jan]; 8
(1
): 28-31
PMID27051220
show ga
INTRODUCTION: Forensic odontology is a branch that is evolving over time and has
opened newer avenues that may help in the identification of individuals. Tooth
prints are the enamel rod end patterns on tooth surface and they are considered
as a hard tissue analog to fingerprints. Teeth have the highest resistance to
most environmental effects like fire, desiccation, and decomposition, and may be
used as a forensic evidence. AIMS AND OBJECTIVES: The aim of the study was to
evaluate if the tooth prints could be used for an individual's identification and
reproducibility and permanency of these tooth prints after exposing the teeth to
acid and various degrees of temperature. MATERIALS AND METHODS: 90 tooth prints
from 20 freshly extracted maxillary premolar teeth were obtained. Cellophane tape
technique was used to record enamel rod end patterns on tooth surface. Ten teeth
(one from each patient) were immersed in 36.46% hydrochloric acid and the tooth
prints were obtained at various intervals (5 min, 10 min, and 20 min). The other
10 teeth (one from each patient) were incinerated and impression was made at
various intervals (80° C, 400° C, 600° C, and 750° C). Tooth prints obtained from
different teeth (total of 90 tooth prints) were analyzed using Verifinger®
standard SDK version 5.0 software. RESULTS: All the 20 original tooth prints were
distinct from each other and no inter-individual or intra-individual similarity
was found. The tooth prints from the same tooth after it was exposed to acid or
heat were reproducible and showed high to very high similarity with the original
tooth print of that particular tooth stored in the database. CONCLUSION: Tooth
prints may be used as an effective aid in person identification even in adverse
conditions such as burn and acid attack injuries.
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