ABSTRACT
A system was proposed to scan dental models to record three-dimensional features seen in the anterior teeth to create a database of dental profiles. Dental casts were randomly selected to create indentations in cowhide leather. Reid Bite Reader was used to measure the bite forces generated by Reynolds Controlled Bite Force Generator to make the teeth impressions. Using the Immersion MicroScribe® 3D, information from the 53 bitemark depressions and 62 sets of dental casts were transferred to an Excel Spreadsheet. Software was developed to perform the 3D comparison using metric and pattern analysis. Statistical analysis showed 100% success when comparing both arches together of the dental casts with the bitemarks or different dental casts.
Subject(s)
Humans , Male , Female , Imaging, Three-Dimensional , Forensic Dentistry , Jaw Relation RecordABSTRACT
Objetivos: Descrever o perfil clínico-epidemiológico de vítimas de traumatismo torácico submetidas a tratamento cirúrgico em um hospital de referência em trauma.Métodos: Um estudo epidemiológico transversal analisou os prontuários de todos os pacientes admitidos por traumatismo torácico e submetidos a tratamento cirúrgico entre agosto e novembro de 2011 no Hospital de Urgências de Goiânia.Resultados: Fizeram parte do estudo 89 (89%) homens e 11 (11%) mulheres, a maioria entre 20 e 39 anos (49%). Os ferimentos por arma branca (57,9%) e o hemopneumotórax (45,6%) foram mais frequentes no trauma torácico aberto e os acidentes motociclísticos (62,8%) e o hemotórax (48,8%) mais frequentes no fechado. O raio-x (69%) e a drenagem torácica unilateral (78%) foram os principais meios de diagnóstico e tratamento. Entre os pacientes com trauma torácico aberto, 11 (19,3%) necessitaram de toracotomia; destes, 36,3% apresentavam lesões pulmonares. Grande parte dos pacientes (48%) ficaram internados entre três e quatro dias. A taxa de mortalidade foi de 11%.Conclusões: O perfil das vítimas de trauma torácico que necessitaram de atendimento cirúrgico corresponde principalmente a homens jovens, com lesão decorrente de ferimento por arma branca ou de acidente motociclístico, apresentando hemopneumotórax ou hemotórax. Na maioria dos casos essas lesões foram diagnosticadas por raios-x e tratadas com drenagem torácica fechada. A maior parte dos pacientes teve boa evolução, com tempo de internação curto seguido da alta hospitalar. Estas informações podem auxiliar na organização do atendimento hospitalar de urgência e na implementação de medidas preventivas e de conscientização.
Aims: To describe the clinical and epidemiological profile of victims of chest trauma undergoing surgical treatment at a referral hospital for trauma.Methods: A cross-sectional epidemiological study analysed medical records of all patients admitted with chest trauma and underwent surgery between August and November 2011 in Emergency Hospital of Goiânia.Results: Participants were 89 (89%) men and 11 (11%) women, most between 20 and 39 years (49%). The stab wounds (57.9%) and hemopneumothorax (45.6%) were more frequent in open chest injury and motorcycle accidents (62.8%), and hemothorax (48.8%) was more frequent in blunt trauma. The x-ray (69%) and unilateral chest tube drainage (78%) were the main means of diagnosis and treatment. Among patients with open chest trauma, 11 (19.3%) required thoracotomy and of these, 36.3% had lung lesions. Most patients (48%) were hospitalized for three to four days. The mortality rate was 11%.Conclusions: The profile of victims of chest trauma requiring surgical care consisted mainly of young men with injuries caused by stab wound or motorcycle accidents, presenting hemopneumothorax or hemothorax. In most cases these lesions were diagnosed by x-rays and treated with closed drainage. Most patients had a good outcome, with shorter hospitalization?s time followed by hospital discharge. This information can assist in the organization of emergency hospital care as well as in the implementation of preventive measures and awareness.