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To improve the human identification process possibilities by the aid of forensic odontology. Particularly we considered to carry out an experimental study to learn more about the changes that dental remains, restorative materials and prosthetic devices undergo when exposed to very high temperatures, defining their behaviour and morphology with the aim to edit a reference table. In large scale disasters associated with fire the damage caused by heat can make medico-legal identification of human remains difficult and as a result teeth, restorations and prostheses which are resistant to even very high temperatures can be resorted to. This in vitro study present the behaviour and morphology of sound and filled teeth and dental prostheses exposed to a range of high temperatures. Various specimens were used for the study: (1) one healthy, unrestored tooth, (2) one molar with one previously class I restoration in amalgam and one added class V restoration in amalgam (specifically carried out for the research), (3) one premolar with a class V restoration of the vestibular surface in composite, and one with a class V restoration of the lingual surface with compomer, (4) one fixed prosthetic crown or bridge of aesthetic resinous material (polycarbonate, acrylic based products or composite materials), (5) one fixed prosthetic crown or bridge of metal alloy covered with aesthetic resinous material (acrylic based products or composite materials), (6) one removable partial prosthesis made of base metal casting alloys and denture base acrylic resins, and (7) one fixed prosthetic crown or bridge in metal-feldspatic ceramic dental systems.
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