Application of X-rays to dental age estimation in medico-legal practice.

AIM OF THE STUDY: The paper addresses the use of dental age assessment methods based on radiographs in medico-legal practice. Different cases of practical application of the methods are presented including identification of human remains, dental age assessment in a living person and one archaeological case. MATERIAL AND METHODS: The study material consisted of cases involving dental age assessment performed in the Department of Forensic Medicine, Poznan University of Medical Sciences in Poznan. Depending on the preliminary assessment of age, the Liversidge or the Kvaal et al. methods were applied. Dental age was estimated on the basis of available pantomograms. In the case of the living person, it was a radiograph supplied for expert evaluation. In the other cases, dental computed tomography was performed. RESULTS: Dental age was successfully estimated in all of the cases. Various methods based on the analysis of X-ray images were applied. Dental age was shown to be correlated with skeletal age. CONCLUSIONS: The methods based on radiographs were demonstrated to be useful, and the results they yield are fully correlated with results of anthropological analyses.

[Transient focal ischemia in Fahr's disease]. / Zwalniajace niedokrwienie ogniskowe w przypadkach choroby Fahra.

In the reported case symmetrical calcifications were found in the basal ganglia and cerebellum which connected with congenital anomalies of cerebral vessels were the cause of intermittent episodes of right-sided hemiparesis with mutism in a man aged 39 years.

[Diagnosis of blood flow disorders in the common carotid arteries by the ultrasonic Doppler method]. / Rozpoznawanie zaburzen przeplywu krwi w tetnicach szyjnych wspólnych metoda ultradzwiekowa oparta na zjawisku Dopplera.

The aim of this work was evaluation of the usefulness of the Doppler ultrasound method for detection of blood flow disturbances in carotid arteries. The investigations were done in 110 patients with symptoms of cerebral circulatory disorders. In 45 patients carotid arteriography was done. In 30 cases arterial reconstructive operations were performed. The curves of blood flow velocity in the common carotid arteries were recorded with a UDP-10 ultrasound blood flow detector. The obtained curves were subjected to morphological analysis and the mean momentary velocity of the systolic and diastolic flow wave was calculated. In 80% of cases with impaired patency of the carotid arteries demonstrated by angiography abnormal curves of blood flow velocity in the common carotid arteries were obtained. The method of ultrasound recording of blood flow velocity is non-invasive and safe and it is very useful for establishing indications to angiography and for postoperative control.