C Mejía1, A Herrera1, A I Sánchez2, S Moreno3, F Moreno3. 1. School of Dentistry, Universidad del Valle, Cali, Colombia. 2. Faculty of Health Sciences, Pontificia Universidad Javeriana, Cali Colombia. 3. Basic Sciences of Health, Faculty of Health Sciences, Pontificia Universidad Javeriana, Cali Colombia.
Abstract
OBJECTIVE: The aim of the study was to provide scientific evidence that would permit DEJ separation to be used as a parameter to estimate the temperature to which burnt, carbonized or incinerated cadavers or human remains had been subjected. MATERIALS AND METHODS: A descriptive pseudo-experimental study was carried out in vitro using cone beam tomography to determine the physical behavior of the dentine-enamel junction in 60 human premolars submitted to high temperatures (200°C, 400°C, 600°C, 800°C and 1000°C). RESULTS: Spearman's concordance and correlation index was used to determine the relationship between longitudinal separation of the dentine-enamel junction (mm) and temperature (°C) and a simple linear regression model developed to show that once micro- and macrostructural changes are initiated in the enamel and dentine. CONCLUSIONS: The dentine-enamel junction begins to separate from the cervical towards the occlusal as temperature increases.
OBJECTIVE: The aim of the study was to provide scientific evidence that would permit DEJ separation to be used as a parameter to estimate the temperature to which burnt, carbonized or incinerated cadavers or human remains had been subjected. MATERIALS AND METHODS: A descriptive pseudo-experimental study was carried out in vitro using cone beam tomography to determine the physical behavior of the dentine-enamel junction in 60 human premolars submitted to high temperatures (200°C, 400°C, 600°C, 800°C and 1000°C). RESULTS: Spearman's concordance and correlation index was used to determine the relationship between longitudinal separation of the dentine-enamel junction (mm) and temperature (°C) and a simple linear regression model developed to show that once micro- and macrostructural changes are initiated in the enamel and dentine. CONCLUSIONS: The dentine-enamel junction begins to separate from the cervical towards the occlusal as temperature increases.