Sharps Accidents: Occurrence and Knowledge Level among Brazilian Dental Students

ABSTRACT Objective: To evaluate the prevalence of sharps accidents among dental students in southwest Goiás state, Brazil, and further survey their knowledge of biosafety and post-injury management. Material and Methods: A cross-sectional analytical observational study was carried out in 2018 following the Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) guidelines. The study population included dental students in the 4th and 10th course semester. A pre-formulated self-administered questionnaire containing 14 objective questions was used for data collection. Mean and standard deviation values were calculated. Results: A total of 308 responses were obtained. Overall, 15.9% of the respondents reported having previously experienced accidents with sharps. Most dental students who claimed to know the biological risks to which they are exposed were in the 5th and 8th course semesters, and 67.2% of them reported knowing how to proceed in the event of a sharp accident. Conclusion: A low prevalence of sharps accidents has been reported, and dental students are considered to have a good knowledge of biosafety.

The importance of properly distributing the occlusal load for the correct biomechanics of implant-supported fixed partial dentures: stress analysis in implants, prosthetic components and infrastructures / A importância da distribuição da carga oclusal de forma adequada para a correta biomecânica de prótese parcial fixa implantosuportada: análise das tensões em implantes, componentes protéticos e infraestruturas

ABSTRACT Objective: The present study analyzed the biomechanical behavior of the generated stress on the external surface of the rehabilitation elements (implants, components and infrastructures) according to different occlusion patterns on a fixed partial denture on osseointegrated implants. Method: The experimental groups varied according to the location of the occlusal load applied to the Fixed partial denture, with a total occlusal load of 750N in all groups, opting for greater loads on the occlusal table of the molar in relation to the premolar. This evaluation was performed by the finite element method with simulations by the AnsysWorkbench 16.0 Software program. Results: The results analyzed for implants and their components showed that the more posterior the occlusal loading, the greater the stress developed (group 4), always in the connection area between the prosthetic component and the implant, as this location can induce greater screw loosening. The results analyzed for the infrastructures showed that the most distributed occlusal loading possible (group 1) is the best situation for generating less stress. However, even in group 3 which obtained the highest stresses in the critical area of the prosthetic connection, the zirconia flexural strength values generated were not worrisome. Conclusion: It can be concluded that the occlusal adjustment of Fixed partial dentures are preponderant and decisive factors for correct biomechanics and preservation of the system in the long term in order to avoid possible damage and/or failures, and exert significant and notorious differences in the behavior of all structures studied herein.

RESUMO Objetivo: O presente estudo analisou o comportamento biomecânico do estresse gerado na superfície externa dos elementos reabilitadores (implantes, componentes e infraestruturas) de acordo com diferentes padrões de oclusão em uma prótese parcial fixa sobre implantes osseointegrados. Métodos: Os grupos experimentais variaram de acordo com a localização da carga oclusal aplicada na Prótese Parcial Fixa, com carga oclusal total de 750N em todos os grupos, optando por cargas maiores na mesa oclusal do molar em relação ao pré-molar. Esta avaliação foi realizada pelo método dos elementos finitos com simulações pelo programa AnsysWorkbench 16.0 Software. Resultados: Os resultados analisados para os implantes e seus componentes mostraram que quanto mais posterior a carga oclusal, maior a tensão desenvolvida (grupo 4), sempre na área de conexão entre o componente protético e o implante, pois este local pode induzir maior soltura do parafuso. Os resultados analisados para as infraestruturas mostraram que a carga oclusal mais distribuída possível (grupo 1) é a melhor situação para gerar menos estresse. No entanto, mesmo no grupo 3 que obteve as maiores tensões na área crítica da conexão protética, os valores de resistência à flexão da zircônia gerados não foram preocupantes. Conclusões: Pode-se concluir que o ajuste oclusal das Próteses Parciais Fixas são fatores preponderantes e decisivos para correta biomecânica e preservação do sistema a longo prazo a fim de evitar possíveis danos e/ou falhas, e exercem diferenças significativas e notórias no comportamento de todas as estruturas aqui estudadas.

Precisão na análise queiloscópica e seu potencial uso forense / Precision in lip prints analysis and potential forensic application

A análise da impressão labial, conhecida como queiloscopia, pode ser útil em casos específicos de investigação forense. Este trabalho experimental teve como objetivos principais investigar a precisão na análise dos tipos de sulcos labiais, da espessura labial e da localização da comissura labial e observar diferenças estatísticas entre a classificação labial e o sexo dos indivíduos. A amostra foi composta por 100 voluntários. Foi realizada a mensuração da espessura labial com paquímetro, análise visual da comissura labial e classificação dos sulcos labiais por meio de sua impressão, sendo testada a concordância intra- e inter-observador (três avaliadores) pela reavaliação de 30% da amostra. Os resultados mostraram que é possível realizar a classificação das análises labiais, sendo que o tipo de lábio mais frequente encontrado foi o tipo I (34,25%). Em relação à espessura, o tipo misto, e a comissura do tipo abaixada, foram as predominantes, com 66% e 59% respectivamente. Além disso, observou-se que não houve diferença estatística entre os indivíduos do sexo masculino e feminino nas classificações estudadas. Em relação à precisão ao fazer as classificações as técnicas utilizadas foram consideradas aplicáveis pelos pesquisadores, uma vez que a classificação foi possível e a concordância observada foi de forte a moderada, exceto em um dos quadrantes da classificação da impressão labial

Comparison of Conventional and Pontic Fixed Partial Dentures Over Implants Using the Finite Element Method: Three-Dimensional Analysis of Cortical and Medullary Bone Stress.

Rehabilitation with implant prostheses in posterior areas requires the maximum number of possible implants due to the greater masticatory load of the region. However, the necessary minimum requirements are not always present in full. This project analyzed the minimum principal stresses (TMiP, representative of the compressive stress) to the friable structures, specifically the vestibular face of the cortical bone and the vestibular and internal/lingual face of the medullary bone. The experimental groups were as follows: the regular splinted group (GR), with a conventional infrastructure on 3 regular-length Morse taper implants (4 × 11 mm); and the regular pontic group (GP), with a pontic infrastructure on 2 regular-length Morse taper implants (4 × 11 mm). The results showed that the TMiP of the cortical and medullary bones were greater for the GP in regions surrounding the implants (especially in the cervical and apical areas of the same region) but they did not reach bone damage levels, at least under the loads applied in this study. It was concluded that greater stress observed in the GP demonstrates greater fragility with this modality of rehabilitation; this should draw the professional's attention to possible biomechanical implications. Whenever possible, professionals should give preference to use of a greater number of implants in the rehabilitation system, with a focus on preserving the supporting tissue with the generation of less intense stresses.

Stress distribution of three-unit fixed partial prostheses (conventional and pontic) supported by three or two implants: 3D finite element analysis of ductile materials.

In implantology, when financial or biological feasibility limitations appear, it is necessary to use prostheses with geometries that deviate from the conventional, with a pontic in the absence of an intermediate implant. The aim of this study was analyze and understand the general differences in the stresses generated in implants, components and infrastructures according to the configuration of the prosthesis over three or two implants. Thus, this paper analyzes the von Mises equivalent stresses (VMES) of ductile materials on their external surfaces. The experimental groups: Regular Splinted Conventional Group (RCG), which had conventional infrastructures on 3 regular-length Morse taper implants (4x11 mm); Regular Splinted Pontic Group (RPG), which had infrastructures with intermediate pontics on 2 regular-length Morse taper implants (4x11 mm). The simulations of the groups were created with Ansys Workbench 10.0 software. The results revealed that the RPG presented greater areas of possible fragility due to higher stress concentrations, for example, in the cervical area of the union between the implant and component the top platform of the abutment, as well as greater coverage of the stress by the cervical implant threads. The RPG infrastructure was also more affected by stresses in the connection areas between the prostheses and on the occlusal surface. There is an advantage to using prostheses supported by a greater number of implants (RCG) because this decreases the stress in the analyzed structures and consequently improves stress dissipation to the supporting bone, which would preserve the system.

Correlação entre reclamações de consumidores e ações judiciais por falhas na prestação de serviços odontológicos no estado de São Paulo, Brasil / Correlation between consumer complaints and lawsuits for failures in dental services, São Paulo state, Brazil

A responsabilidade dos cirurgiões-dentistas tem como principais enfoques os direitos e as obrigações destes profissionais. O objetivo do trabalho foi realizar a associação entre os cirurgiões-dentistas e/ou as empresas que prestam serviços odontológicos que tiveram seus nomes apontados em sites especializados em reclamações e, a partir desses nomes reclamados, buscar as demandas judiciais no Estado de São Paulo. A amostra foi composta por processos disponíveis no site do Tribunal de Justiça de São Paulo. Os nomes de 175 cirurgiões-dentistas e/ou empresas odontológicas foram coletados a partir de sites especializados em reclamações utilizando termos relacionados à Odontologia. Os resultados mostraram que, a partir dos 175 nomes encontrados, havia 313 processos constando esses nomes como parte requerida em processos judiciais. O ano com maior ocorrência dos casos foram 2011 e 2012. A maioria das ações foi promovida por pessoas do sexo feminino (62%) e os planos odontológicos constituem o principal alvo dos processos. Com relação ao "tipo de ação" referente ao fator motivador dos processos analisados, os "danos morais", "danos materiais e morais", "danos materiais", seguido de "contrato" e "obrigação" foram os termos mais encontrados. Os valores pleiteados, quando divulgados, foram bastante variados, com uma média correspondendo a um montante de R$ 27.349,54. Pode-se concluir que houve associação entre os nomes que estavam sendo reclamados nos sites brasileiros especializados em reclamação de consumidores e as demandas judiciais no Estado de São Paulo.

The main topic of Dentistry responsibility is the professional´s rights and obligations. This study aimed to verify the association between dentists and/or dental companies´ names presents in specific complaints websites, and with these names look for lawsuits using the online database of the São Paulo State Court. The sample was com posed by lawsuits from these websites. The 175 dentists and/or dental companies´ names were collected using keywords about Dentistry. The results showed that 175 names were found in complaints websites and after the search using these names in database of the São Paulo State Court were found 313 lawsuits against the professional and companies found. The majority of cases occurred in the years 2011 and 2012. The most lawsuits were filed by women (62%) and the dental companies were the lawsuits´main target. About the lawsuit "nature" an "topic" concerning the reason to start the lawsuit the studied shows that "moral damage", "moral and material damage", "material damage", and "contract" and "obligation" were the principal terms found. The requested compensation values were varied, and the mean value was R$ 27,349.54 (in Brazilian reais). It was concluded that there is association between the names found in specific complaints websites and the lawsuits database of the São Paulo State Court.

Age estimation using Olze's method in an adult Brazilian population.

OBJECTIVES: Age estimation is important to set an anthropological profile in human remains, as well as in legal issues where the suspect or victim doesn't have documents that prove the real age. The age estimation, in adults, is a challenge, and it can be analyzed through some dental stages. This study aimed to test Olze's method in a Brazilian sample composed by adults, aged between 20 and 70 years old, both sex. METHODS: For experiments, 306 orthopantomography from Brazilian individuals between 20 and 70 years were selected. The dental involution through four different dental parameters were classified and the correlation between chronological age and the estimated age was examined by means of a multiple regression analysis. RESULTS: The results showed that up to 41 years old, the correlation between real age and the interval obtained was considered strongly positive (R = 0.8-1), and the percentage of matching was 78.78% for men and 71.21% for women. From 42 years old up, the correlation between real age and the estimation was considered null (R = 0) for both sex, and the percentage of matching was 17.24% for men and 6.89% for women. CONCLUSION: It could be concluded that the method is effective for age estimation up to 41 years old, but has limitations to be used over this age in Brazilian people.

Forensic dentistry job market in Brazil / Mercado de trabajo de odontologia forense en Brasil

Forensic Odontology is characterized by offer dental knowledge to the Justice system. The Forensic Odontologist, in Brazil, can work in civil, criminal, labor and administrative forums. This research aimed to show the professional profile in the labor market, employability, financial aspects and prospects. The predominant age group comprised from 31 to 40 year-olds and there is a balance between male and females. The Southeast region has the highest rate of professionals and experts believe that the job market is booming in areas that are promising and rewarding. Among the various fields, there is teaching and the position of Forensic Odontologist in police forces through public tenders, the main areas responsible for the increasing interest of dentists for this specialty. It was concluded that there is a heterogeneous distribution of specialists in Forensic Dentistry in the country's different regions however, the labor market appears to be thriving with some branches within the area that can be exploited by professionals.

La Odontología Forense, se caracteriza por ofrecer a la justicia, el conocimiento dental. El Odontólogo Forense en Brasil, puede desempeñarse en materia civil, penal, laboral y administrativa. El objetivo de la investigación fue evaluar el mercado de trabajo para los especialistas en Odontología Forense, tratando de conocer el perfil profesional, aspectos de empleabilidad, remuneración y perspectivas de estos profesionales. El grupo de edad predominante comprende de 31 a 40 años de edad y existe un equilibrio entre hombres y mujeres. La región sudeste tiene el mayor número de profesionales y los expertos consideran que el mercado laboral se está expandiendo en sectores prometedores y bien pagados. Ent re los diversos campos de la actividad, está la docencia y la posición de Odontologo Forense en las fuerzas policiales a través de concursos públicos, son éstas, las principales áreas responsables del creciente interés de los Dentistas por ésta especialidad. Se concluye, que hay una distribución heterogénea de profesionales especialistas en Odontología Forense, entre las regiones de Brasil, sin embargo, el mercado laboral parece estar creciendo, con algunas ramas dentro del area que pueden ser explotadas por los profesionales.

Celulite facial em lábio inferior oriunda de acne inflamada: relato de caso

A celulite facial é a difusão de processo inflamatório por planos subcutâneos em tecidos moles, podendo ter sua etiologia oriunda de variados fatores, sendo, dentre eles, a origem odontogênica a mais comumente encontrada. Entretanto, a celulite facial pode também estar relacionada a causas menos comuns, como processos infecciosos de origem não odontogê- nica. Objetivo: o presente relato de caso vem a elucidar o início de um processo infeccioso gerado por acne inflamada na borda inferior do lábio, a qual foi a porta de entrada para bactérias, o que gerou a difusão do processo inflamatório para planos subcutâneos e originou uma celulite facial. Relato de caso: pelo fato de não haver agente causal específico, como as originadas por causa odontogênica, foi estabelecido tratamento com antibióticoterapia de amplo espectro, associado à meticulosa higienização e terapia com calor, a fim de induzir abscedação espontânea. Exames específicos laboratoriais também foram solicitados para maior segurança e diagnóstico preciso do profissional. A evolução do caso transcorreu em oito dias, de forma rápida e aguda, principalmente nos primeiros cinco dias. Considerações finais: conforme relatado no caso, a interação entre o cirurgião-dentista e o médico bem como a presença da interdisciplinaridade foram fatores fundamentais no tratamento como um todo e para a resolução do caso de forma satisfatória, uma vez que a ocorrência de celulite facial nessa área não é geralmente presenciada.

Sex Determination of Adult Human Maxillary Sinuses on Panoramic Radiographs.

The purpose of this study was to evaluate dimensions of adult human maxillary sinuses on panoramic radiographs and their possible application on the sex determination for forensic purposes. The sample comprised 64 database panoramic radiographs from individuals aged 20 years or older (32 male and 32 female subjects), with complete permanent dentition (or absence of third molars). One examiner measured the width and height of the right and left maxillary sinuses using the software Image J 1.47v (National Institutes of Health, Bethesda, USA). Measurements were repeated to calculate intra-observer agreement. Chi-Square test, Kappa, ANOVA and T-Student were used for results analysis for p≤ 0.05. Intra-observer agreement with correlation Kappa ranged between 0.38 and 0.96. For female subjects, the mean height and width of the left maxillary sinus were 28.7856mm and 44.6178mm, respectively. And right maxillary sinus was 27.7163mm for height and 45.1850mm for width. Male subjects were found to have the mean height and width of the left maxillary sinus 30.9981mm and 48.7753mm, respectively. And right maxillary sinus was 30.7403mm for height and 48.5753mm for width. There was a statistically significant difference in the height and width of maxillary sinuses between males and females. It can be concluded that maxillary sinuses height and width on panoramic radiographs can be used to determine the gender of adult human subjects.

Subcutaneous emphysema after treatment through airabrasivedevice: case report / Enfisema subcutâneo gerado após tratamento com equipamento de ar comprimido: relato de caso

Subcutaneous emphysema is an event often generated by iatrogenic reason, caused by improper dissection of air into soft tissues and/ or anatomical structures, causing edema and visually noticeable volumetric change in the area of the incident. The main etiological factor for this is the use of equipment such as air syringe or high-speed handpieces in surgical procedures of greater magnitude; however, subcutaneous emphysema may also occur in simple procedures, such that presented in this case report, through using air-abrasive device usually proper for dental prophylaxis. This case report aimed to describe the care measurements to avoid such event, describing proper procedures for the correct solution of the case, as well as to alert the professionals about the risks and necessary precautions.

O enfisema subcutâneo é um evento muitas vezes de origem iatrogênica, causado pela infusão indevida de ar nos tecidos e/ou estruturas anatômicas, causando edemaciamento e alteração volumétrica visualmente perceptível na área do ocorrido. O principal fator etiológico para tal é o uso de equipamentos como seringa tríplice ou caneta de alta rotação durante procedimentos cirúrgicos de maior magnitude; no entanto, o enfisema subcutâneo também pode ocorrer diante de procedimentos mais simples, tal como o ocorrido no presente relato de caso, em que houve sua ocorrência pelo uso de equipamento de ar comprimido usualmente utilizado para execução de profilaxia. O objetivo do presente artigo foi relatar o caso, assim como descrever os cuidados para se evitar tal evento, e descrever procedimentos adequados para o correto prosseguimento e resolução adequada do caso.

Responsabilidad Civil del Cirujano-Dentista: Análisis de las Demandas Presentadas en el Municipio de Ribeirão Preto-São Paulo, Brasil / Civil Liability of Dental Surgeon: Legal Proceedings Analysis in the City of Ribeirao Preto, São Paulo State, Brazil

El objetivo del trabajo fue realizar una revisión de los procesos judiciales que involucran demandas de responsabilidad civil interpuestas contra cirujanos-dentistas en el Forum de Ribeirão Preto, Estado de São Paulo, Brasil. Fue realizada una búsqueda nominalde profesionales y clínicas, debidamente inscritos en el Consejo Regional de Odontología de São Paulo, involucrados en procesos civiles en el municipio de Ribeirão Preto - São Paulo. Como resultado fue observado un significativo aumento (73,3%) en el número de demandas presentadas en los últimos cinco años, siendo la especialidad de prótesis dental (35,6%) la más involucrada. Se puede concluir que es importante el conocimiento por parte del profesional en cuanto al aumento de divergencias en la relación profesional/paciente y algunas medidas son necesariaspara su prevención, para que los cirujanos-dentistas busquen una práctica profesional más segura.

The objective of this study was to conduct a review of the legal proceedings involving liability lawsuits filed against dentists in Ribeirão Preto, São Paulo, Brazil. A search was carried out of professionals duly registered with the Regional Council of Dentistry of São Paulo seeking professionals and clinics involved in civil proceedings in Ribeirão Preto - São Paulo. The results noted a significant increase (73.3%) in the number of lawsuits filed in the last five years, with the specialty in dental prostheses (35.6%) being the most frequent. It can be concluded that it is important for professionals to have information in reference to the increasing number of lawsuits in professional/patient relationship and that prevention measures are necessary for a safer dental practice.

The use of a DNA stabilizer in human dental tissues stored under different temperature conditions and time intervals.

OBJECTIVE: The present study evaluated the use of a reagent to stabilize the DNA extracted from human dental tissues stored under different temperature conditions and time intervals. MATERIAL AND METHODS: A total of 161 teeth were divided into two distinct groups: intact teeth and isolated dental pulp tissue. The samples were stored with or without the product at different time intervals and temperature. After storage, DNA extraction and genomic DNA quantification were performed using real-time PCR; the fragments of the 32 samples that represented each possible condition were analyzed to find the four pre-selected markers in STR analysis. RESULTS: The results of the quantification showed values ranging from 0.01 to 10,246.88 ng/µL of DNA. The statistical difference in the quantity of DNA was observed when the factors related to the time and temperature of storage were analyzed. In relation to the use of the specific reagent, its use was relevant in the group of intact teeth when they were at room temperature for 30 and 180 days. The analysis of the fragments in the 32 selected samples was possible irrespective of the amount of DNA, confirming that the STR analysis using an automated method yields good results. CONCLUSIONS: The use of a specific reagent showed a significant difference in stabilizing DNA in samples of intact human teeth stored at room temperature for 30 and 180 days, while the results showed no justification for using the product under the other conditions tested.

The use of a DNA stabilizer in human dental tissues stored under different temperature conditions and time intervals

Objective: The present study evaluated the use of a reagent to stabilize the DNA extracted from human dental tissues stored under different temperature conditions and time intervals. Material and Methods: A total of 161 teeth were divided into two distinct groups: intact teeth and isolated dental pulp tissue. The samples were stored with or without the product at different time intervals and temperature. After storage, DNA extraction and genomic DNA quantification were performed using real-time PCR; the fragments of the 32 samples that represented each possible condition were analyzed to find the four pre-selected markers in STR analysis. Results: The results of the quantification showed values ranging from 0.01 to 10,246.88 ng/μL of DNA. The statistical difference in the quantity of DNA was observed when the factors related to the time and temperature of storage were analyzed. In relation to the use of the specific reagent, its use was relevant in the group of intact teeth when they were at room temperature for 30 and 180 days. The analysis of the fragments in the 32 selected samples was possible irrespective of the amount of DNA, confirming that the STR analysis using an automated method yields good results. Conclusions: The use of a specific reagent showed a significant difference in stabilizing DNA in samples of intact human teeth stored at room temperature for 30 and 180 days, while the results showed no justification for using the product under the other conditions tested. .

Orthodontic use of documentation in identification of a skeletonized body in legal dental practice / Uso de documentación de ortodoncia en la identificación de un cuerpo esqueletizado en la práctica odontológica legal

The analysis of dental records is an essential tool for human identification. The present study aimed to highlight the importance of dental records for identification of skeletonized bodies. In form of conclusion, the method of dental identification using dental records represents a valid option for forensic dentistry

El análisis de los registros dentales es una herramienta esencial para la identificación humana. El presente estudio tuvo como objetivo destacar la importancia de los registros dentales para la identificación de los cuerpos esqueletizados. El método de identificación dental que utiliza los registros dentales, representa una opción válida para la odontología forense

Responsabilidade civil do cirurgião-dentista: conhecimento dos profissionais / Civil liability of the dental surgeon: professionals’ knowledge

Objetivo: Analisar o conhecimento dos cirurgiões-dentistas sobre a importância da responsabilidade civil e os meios de proteção. Materiais e Métodos: Cem profissionais foram aleatoriamente sorteados da lista dos profissionais regularmente inscritos no município de Ribeirão Preto, São Paulo, convidados a responder um questionário, os dados foram analisados por estatística descritiva. Resultados: Os resultados demonstraram que todos os profissionais consideram importante o conhecimento sobre a responsabilidade civil no exercício da profissão, 94% já ouviram falar sobre responsabilidade civil, sendo a maior parte em cursos ou na faculdade. Em relação ao tipo de obrigação assumida pelo profissional, 28% acreditam que o cirurgião-dentista deve garantir resultados, 28% que não deve garantir resultados e 44% responderam que a garantia de resultados depende da área de atuação. Sobre o aumento do número de processos em âmbito civil contra cirurgiõesdentistas, 79% têm conhecimento desse fato e 57% conhecem algum caso em que houve a instauração do processo. Essa realidade faz com que 41% dos profissionais não se sinta seguro em exercer a Odontologia, e na busca por meios de proteção, 72% conhecem o seguro de responsabilidade civil, 45% possuem esse seguro e 82% se sente ou sentiria seguro com a contratação desse tipo de serviço. Conclusão: Conclui-se que osprofissionais possuem conhecimento sobre a importância da responsabilidade civil e dos meios de proteção para o exercício profissional.

A identificação humana de vítimas de desastres em massa: a importância e o papel da Odontologia Legal / Human identification of victims of mass disasters: the importance and role of Forensic Dentistry

A identificação humana é uma das principais atividades desenvolvidas pela Odontologia Legal. Os desastres em massa são os acidentes, naturais ou produzidos diretamente pela ação ou pela influência humana, que geralmente resultam em um elevado número de vítimas fatais. Os corpos, muitas vezes, encontram-se carbonizados, fragmentados, destruídos ou em processo de decomposição avançada, o que dificulta a identificação das vítimas. Os métodos odontológicos são comumente usados nesses casos, pois os dentes possuem alta resistência e, muitas vezes, são a única fonte que determina a identidade de um indivíduo. Objetivo: analisar, por meio da revisão de diferentes casos da literatura, a importância da Odontologia Legal no processo de identificação humana nos desastres em massa e o trabalho do perito odontolegista. Materiais e método: realizou- -se um levantamento bibliográfico, com base em artigos científicos que relatam casos reais em que o método odontológico de identificação humana foi executado e sua aplicabilidade foi analisada, verificando suas vantagens, limitações e eficiência. Resultados: constatou-se que a Odontologia apresenta uma relevante contribuição para a identificação das vítimas em eventos com múltiplas fatalidades. Não raro, o método odontológico de identificação humana apresentou-se como o único passível de emprego em casos com número demasiado de vítimas fatais ou em situações em que os corpos apresentavam-se com a integridade comprometida. Considerações finais: a Odontologia Legal desempenha um importante papel no processo de identificação de vítimas de desastres em massa, pelo fato de os dentes possuírem características que possibilitam o processo de identificação de um indivíduo, sendo, em algumas situações, o único material passível de análise.

Human identification is one of the main activities developed by Forensic Dentistry. Mass disasters are accidents either natural or directly caused by human action or influence, which usually result in a high death toll. Bodies are often charred, fragmented, destroyed, or in advanced decomposition, which complicates the process of identifying the victims. Dental methods are commonly used in these cases due to the high resistance of the teeth. Hence, they are frequently the only source that may determine the identity of an individual. Objective: to analyze through the review of different cases in literature, the importance of Forensic Dentistry in the process of human identification in mass disasters, as well as the role of the forensic dentist. Materials and methods: a literature survey was performed from scientific papers describing real cases in which the dental method for human identification was performed and its applicability was analyzed, to verify its advantages, limitations, and efficiency. Results: it was found that Dentistry has a significant contribution to the identification of victims in events of multiple fatalities. The dental method was often the only possible method of human identification in cases with either too many fatal victims or situations where the bodies were too compromised for analysis. Final considerations: Forensic Dentistry plays an important role in the process of human identification of victims of mass disasters because teeth have features that allow the identification process of an individual, and sometimes it is the only material capable of analysis.

Validation of the Brazilian versions of two inventories for measuring oral health-related quality of life of edentulous subjects.

OBJECTIVES: To analyse the validity of the Brazilian versions of OHIP-EDENT and GOHAI as assessment tools of edentulous subjects' OHRQoL. BACKGROUND: Inventories for measuring oral health-related quality of life (OHRQoL) are important in clinical studies regarding oral rehabilitation. However, there is a need for comprehensive validation after translation into different cultural settings. MATERIALS AND METHODS: The sample comprised of 100 complete denture wearers (29 men, 71 women, mean age of 65.2 ± 9.9 years). The associations between each OHRQoL inventory and other variables served as measurements of construct validity. Data analysis comprised the Spearman correlation test as well as multiple regression using the OHRQoL inventories as dependent variables and the other scales as determinants. RESULTS: Both OHRQoL inventories showed good correlation with denture satisfaction, whereas lower correlation coefficients were found among the inventories and the HAD subscales. Denture satisfaction alone explained 48% and 39% of the variance found for the OHIP-EDENT and GOHAI, respectively, as assessed by multiple regression. A smaller effect was found for OHIP-EDENT. CONCLUSION: Both OHIP-EDENT and GOHAI showed good construct validity for measurement of OHRQoL of edentulous subjects.

Associação entre a higiene de próteses totais e qualidade de vidarelacionada à saúde bucal em pacientes desdentados / Association between denture hygiene and oral health-related quality of life in edentulous patients

Objetivo: Intervenções visando à melhor higiene de próteses totais podem ter maior chance de sucesso caso levem à melhora da qualidade de vida relacionada à saúde bucal (QVSB), assim melhorando a colaboração do paciente. No entanto, não se conhece se há associação entre a higiene precária das próteses e pobre QVSB. Assim, este estudo buscou avaliar a associação entre a área coberta por biofilme sobre próteses totais e a QVSB em uma amostra de pacientes completamente desdentados. Material e método: Uma amostra foi composta por 80 participantes (20 homens e 60 mulheres, média etária de 65,0 ± 9,1 anos) que solicitavam novas próteses totais em uma clínica universitária. A variável usada como medida para a higiene das próteses foi a área coberta por biofilme, quantificada por meio de um método computadorizado. Em seguida, participantes responderam ao instrumento OHIP-EDENT e a questões sobre parâmetros sócio-demográficos. Testes bivariados e regressão múltipla quantificaram a associação entre o biofilme e as demais variáveis (a = 0,05). Resultado: A correlação da área coberta por biofilme com a QVSB, bem como com a maioria das variáveis sócio-demográficas, foi fraca e não significante. A regressão múltipla confirmou essa falta de associação entre o biofilme das próteses e a QVSB. Conclusão: É possível concluir que a higiene de próteses totais é independente da QVSB para o usuário de próteses totais regular.

Objective: Interventions for better denture cleansing would be more successful if they can improve oral health-related quality of life (OHQoL), thus reinforcing patient?s compliance. Nevertheless, it is currently unknown whether precarious denture hygiene is associated with poor OHQoL. This study aimed to assess the association between denture biofilm coverage and OHQoL in a sample of adult edentulous patients wearing complete dentures. Material and method: The sample was composed by 80 participants (20 men and 60 women, mean age of 65.0 ± 9.1 years) who requested new complete dentures in a university clinic. The variable used as a measure of denture hygiene was biofilm coverage area, which was quantified by means of a computerized method. Afterwards, participants answered the OHIP-EDENT instrument and questions about socio-demographic parameters. Bivariate tests and multiple regression quantified the association between denture biofilm and other variables (a = 0.05). Result: Correlation between biofilm coverage area and OHQoL, as well as with most socio-demographic variables, was weak and non significant. Multiple regression confirmed the lack of association between denture biofilm and OHQoL. Conclusion: It can be concluded that denture hygiene is independent of OHQoL for the average complete denture wearers.

Identificação humana em odontologia legal por meio de registro fotográfico de sorriso: relato de caso / Human identification in forensic dentistry from a photographic record of smile: a case report

Os elementos dentais são os órgãos mais duráveis do corpo humano, capazes de resistir e permanecer intactos por muito tempo após decomposição e/ou incineração dos tecidos moles, denotando características valiosas na individualização. A partir desses aspectos, a Odontologia Legal desempenha um papel fundamental no processode identificação humana em casos cuja identidade é desconhecida. Dessa forma, o presente trabalho objetivou apresentar, por meio de um relato de caso pericial, um procedimento de identificação humana a partir do estudo dos dados antropológicos associados à análise do sorriso por meio de uma fotografia do suspeito. Concluiu-se que a associação entre a fotografia ante mortem e os dados antropológicos e odontolegais permitiu a identificação do indivíduo, sendo essa associação de técnicas de grande validade no processo de identificação humana.

Dental elements are the organs of the body more durable to withstand and remain intact long after decomposition or burning of soft tissue, showing valuable features of individualization. Thus, the forensic dentistry have an essential role in the process of human identification in cases whose identity is unknown. This study aimed to present, through a forensic case report, a procedure for identifying human from the study of cranial characteristics (anthropological data) associated with the analysis of the smile through a photograph of the suspect. It was concluded that theassociation between antemortem photograph and anthropological data allowed the identification of the individual. So this combination of techniques has great validity in the process of human identification.