Reparação da parede abdominal com membranas acelulares de pericárdio bovino - Parte II - Análises histológicas e morfométricas / Repair of the abdominal wall with acellular bovine pericardial membranes - Part II - Histological and morphometric analyses

Introdução: Análise histológica é a principal ferramenta de avaliação de biopróteses acelulares, em sua maioria em caráter experimental. O objetivo é analisar histologicamente a matriz acelular de pericárdio bovino em reparações de parede abdominal implantada em humanos. Método: De uma série de 30 reparações com a membrana, 3 pacientes foram submetidas a revisão cirúrgica não relacionada aos implantes, aos 13, 22 e 23 meses de pós-operatório, obtendo-se biópsias das áreas previamente implantadas. Além da avaliação dos aspectos básicos de biocompatibilidade e neoformação tecidual, as lâminas foram digitalizadas e submetidas a análise computadorizada com o software ImageJ para quantificação da cinética de degradação das membranas, associada à análise da dimensão fractal das amostras. Os valores obtidos para porcentagens de membrana residual tiveram suas médias comparadas por análise de variância (ANOVA) e pelo teste T de Student não pareado, também utilizado para os valores da quantificação da dimensão fractal. Resultados: Foi demonstrada a biocompatibilidade do material, com neoformação tecidual, deposição de colágeno e tecido celularizado de aspecto normal, sem reações locais importantes. Fragmentos residuais da membrana foram quantificados em 40%±7% aos 13 meses, em 20%±6% aos 22 meses e em 17%±6% aos 23 meses de pós-operatório, com a análise da dimensão fractal indicando uma progressiva degradação dos implantes, com significância estatística entre 13 meses e as amostras tardias. Conclusão: Os resultados atestaram a funcionalidade do pericárdio bovino acelular sob diferentes níveis de estresse mecânico nas reparações da parede abdominal em humanos.

Introduction: Histological analysis is the main tool for evaluating acellular bioprostheses, mostly on an experimental basis. The objective is to histologically analyze the acellular matrix of bovine pericardium in abdominal wall repairs implanted in humans. Method: From a series of 30 repairs with the membrane, 3 patients underwent surgical revision unrelated to the implants at 13, 22, and 23 months postoperatively, obtaining biopsies of the previously implanted areas. In addition to evaluating the basic aspects of biocompatibility and tissue neoformation, the slides were digitalized and subjected to computerized analysis with the ImageJ software to quantify the kinetics of membrane degradation associated with the analysis of the fractal dimension of the samples. The values obtained for percentages of residual membrane had their means compared by analysis of variance (ANOVA) and the unpaired Student's T test, also used for the fractal dimension quantification values. Results: The biocompatibility of the material was demonstrated, with tissue neoformation, collagen deposition, and cellularized tissue with a normal appearance without important local reactions. Residual fragments of the membrane were quantified at 40%±7% at 13 months, at 20%±6% at 22 months, and at 17%±6% at 23 months postoperatively, with the analysis of the fractal dimension indicating a progressive degradation of implants, with statistical significance between 13 months and late samples. Conclusion: The results confirmed the functionality of the acellular bovine pericardium under different levels of mechanical stress in abdominal wall repairs in humans.

Production of dental prosthetics in the SUS in Brazilian older population and impact of the covid-19 pandemic / Produção de próteses dentárias no SUS em idosos brasileiros e impacto da pandemia covid-19

ABSTRACT OBJECTIVE Describe the trends in the production of dental prosthetics by the Unified Health System (SUS) in older people aged 60 years or older in Brazil and country regions from 2010 to 2019 and the impact of the covid-19 pandemic on the expected production for 2020 and 2021. METHODS A time series study using secondary data from the SUS database (Datasus-Tabnet) and the Instituto Brasileiro de Geografia e Estatística (Brazilian Institute of Geography and Statistics - IBGE) from 2010 to 2021. Age-standardized rates were calculated for Brazil and regions for each year analyzed. Generalized linear regressions estimated production trends using the Prais-Winstein estimation method. RESULTS A growth trend occurred in the standardized production rate of complete dentures and other prosthetics per 100,000 inhabitants in Brazil and all country regions. The increase in the production of complete dentures was higher in the Northeast region (50.3%/year) and lower in the North region (19.1%/year). Trends in the production of other prosthetics were higher in the Southeast region (120.7%/year) and lower in the North region (24.5%/year). The output of prosthetics for both groups decreased in the pandemic years. In 2020, the relative difference ranged from -36.4% (North) to -61.7% (Northeast) for producing complete dentures and from -17.9% (North) to -68.4% (Northeast) for other prosthetics. In 2021, standardized rates and total production increased compared to the previous year. However, compared with expected values, the differences were close to those in 2020. CONCLUSION Policies aimed at producing complete dentures and other prosthetics have been increasing. However, production remains far from the population's needs, and there is no equity in providing services. The covid-19 pandemic negatively impacted the production of dental prosthetics by SUS.

RESUMO OBJETIVO Descrever as tendências na produção de próteses odontológicas pelo Sistema Único de Saúde (SUS) em idosos de 60 anos ou mais no Brasil e nas regiões do país de 2010 a 2019, e o impacto da pandemia de covid-19 na produção esperada para 2020 e 2021. MÉTODOS Estudo de séries temporais que utilizou dados secundários provenientes do banco de dados do SUS (Datasus-Tabnet), e do Instituto Brasileiro de Geografia e Estatística, no período de 2010 a 2021. Calcularam-se as taxas padronizadas por idade para o Brasil e regiões de cada ano analisado. Regressões lineares generalizadas, pelo método de estimação de Prais-Winstein, estimaram as tendências das produções. RESULTADOS Houve tendência de crescimento na taxa padronizada de produção das próteses totais e das demais próteses para cada 100 mil habitantes, no Brasil e em todas as regiões do país. O aumento na produção de próteses totais foi maior na região Nordeste (50,3%/ano) e menor na região Norte (19,1%/ano). As tendências na produção das demais próteses foram maiores na região Sudeste (120,7%/ano) e menores na região Norte (24,5%/ano). A produção de próteses para ambos os grupos diminuiu nos anos de pandemia. Em 2020, a diferença relativa variou de -36,4% (Norte) até -61,7% (Nordeste) para a produção de próteses totais e de -17,9% (Norte) até -68,4% (Nordeste) para as demais próteses. Em 2021, as taxas padronizadas e a produção absoluta aumentaram quando comparadas ao ano anterior, todavia, em relação aos valores esperados, as diferenças foram próximas às encontradas em 2020. CONCLUSÃO Políticas voltadas para a produção de próteses totais e das demais próteses vêm tomando forças e crescendo. Todavia, a produção se mantém distante da necessidade da população e não há equidade na oferta dos serviços. A pandemia de covid-19 impactou negativamente na produção de próteses dentárias pelo SUS.

Somatoprótesis y Estallido Social Chileno 2019

Durante el Estallido Social en Chile 2019, la Odontología tomó un rol protagónico que nadie esperaba: La rehabilitación protésica de las víctimas de trauma ocular. Estos eventos dejaron al desnudo importantes fragilidades del sistema de salud Chileno.

During the social unrest in Chile in 2019, dentistry took a protagonist role that no one foresaw: The prosthetic rehabilitation of the ocular trauma victims. These events revealed important flaws on the Chilean Health system.

Inter-incisive index in Bulgarians and its application in dentistry / Indice interincisivo en búlgaros y su aplicación en odontología

SUMMARY: In recent years, aesthetic dentistry has become a major focus for the public. Facial attractiveness plays a key role on modern society and the creation of harmonious smile is an aim for every dentist. The objective of this study was to define certain values of the inter-incisive index in Bulgarians, the sexual dimorphism and bilateral asymmetry and to verify differences of this index between Bulgarians and other Balkan populations. The present study included 121 males and 111 females of Bulgarian origin aged 20- 40 years. Mesiodistal dimensions of maxillary central and lateral incisors were measured by Dentistry Sliding Vernier Caliper. We used the technique of direct anthropometry, modified by Prof. Y. Yordanov. We calculated the inter-incisive index as ratio of the mesiodistal dimension of maxillary lateral incisor to the mesiodistal dimension of the maxillary central incisor. The measurements were analyzed with SPSS 23. The level of statistical significance was set at P< 0.05. The inter-incisive index showed no statistically significant differences between left and right side of the dental arch in both sexes. We did not find statistically significant differences between males and females as well. On the other hand, we found statistically significant differences in MD values of incisors between Bulgarians and other Balkan nations. Inter-incisive index shows no sexual dimorphism and bilateral asymmetry in Bulgarians. This can be helpful in aesthetic dentistry, in prosthodontics and in orthodontic treatment planning.

RESUMEN: En los últimos años, la odontología estética se ha convertido en un foco importante para el público. El atractivo facial juega un papel clave en la sociedad moderna y la creación de una sonrisa armoniosa es importante para todos los dentistas. El objetivo de este estudio fue definir ciertos valores del índice interincisivo en búlgaros, el dimorfismo sexual y la asimetría bilateral y verificar diferencias de este índice entre búlgaros y otras poblaciones balcánicas. El presente estudio incluyó a 121 hombres y 111 mujeres de origen búlgaro entre 20 y 40 años de edad. Las dimensiones mesiodistales de los incisivos superiores centrales y laterales se midieron con un calibrador Vernier deslizante de odontología. Utilizamos la técnica de antropometría directa, modificada por el Prof. Y. Yordanov y se calculó el índice interincisivo como la relación entre la dimensión mesiodistal del incisivo lateral superior y la dimensión mesiodistal del incisivo central superior. Las medidas se analizaron con SPSS 23. El nivel de significancia estadística se fijó en P<0,05. El índice interincisivo no mostró diferencias estadísticamente significativas entre los lados izquierdo y derecho de la arcada dentaria en ambos sexos. Tampoco encontramos diferencias estadísticamente significativas entre hombres y mujeres. Por otro lado, encontramos diferencias estadísticamente significativas en los valores de DM de los incisivos entre búlgaros y otras naciones balcánicas. El índice interincisivo no muestra dimorfismo sexual ni asimetría bilateral en los búlgaros. Esto puede ser útil en odontología estética, en prostodoncia y en la planificación de tratamientos de ortodoncia.

Obsolescência programada em serviços de saúde: o caso da Máfia das Próteses / Planned obsolescence in public health services: the Prosthetic Mafia case

Resumo Obsolescência programada é um conjunto de ações empreendidas por parte do produtor com o objetivo de estabelecer o decaimento gradativo de algum atributo de uma mercadoria para, assim, estimular artificialmente a demanda pelo consumo. A literatura sobre o fenômeno tem apontado como vítimas somente indivíduos e, como forma de manifestação do fenômeno, objetos. Este trabalho aponta a ocorrência do fenômeno de obsolescência programada em serviços públicos de saúde. Para isso, é empreendido um estudo exploratório-interpretativo de abordagem qualitativa e utilizado como estratégia de pesquisa o estudo de caso. A unidade de análise foi a nomeada Máfia das Próteses e, para coleta de dados, foram empregadas as técnicas de pesquisa bibliográfica e documental. Como resultado, foram selecionados e expostos três casos da ocorrência do fenômeno em cirurgias. Foi também realizado um esforço interpretativo dos condicionantes, da dinâmica e dos efeitos da prática de sabote cirúrgico com objetivo de estimular a demanda por serviços médicos e equipamentos médico-hospitalares. Como contribuição, este estudo realiza o delineamento dos elementos que caracterizam a ocorrência deste fenômeno em serviços médicos. Além disso, inaugura uma agenda de futuros estudos que abordam tanto o Estado sendo vitimado pela prática, quanto a ocorrência do fenômeno no setor de serviços.

Abstract Planned obsolescence is a set of actions undertaken by the producer to establish the gradual decay of some attribute of a commodity, artificially stimulating the demand for consumption. The literature on the phenomenon has identified only individuals as victims and objects as forms of expression. This study reports the occurrence of planned obsolescence in public health services. To this end, it consists of an exploratory-interpretative study with a qualitative approach, using the case study of the so-called Prosthetic Mafia. Data were collected by means of bibliographic and documentary research, resulting in three cases that expose the phenomenon occurrence in surgeries. The results were analyzed through an attempt to interpret the conditions, dynamics, and effects of the practice of surgical sabotage to stimulate the demand for medical services and medical-hospital equipment. This study outlines the elements that characterize planned obsolescence occurrence in medical services, inaugurating an agenda of future studies that address both the State being victimized by the practice and the phenomenon in the service sector.

Poisoning by metals used in prothetic materials in orthopedics and its current management / Envenenamiento por metales en materiales protésicos en ortopedia y su tratamiento actual

Poisoning by metals present in prosthetic materials used in orthopedics is caused by the release of waste metals that are generated mainly by wear and corrosion. The objective of this study is to detail which are the current clinical and pathophysiological manifestations of the prosthetic metals used in orthopedics as well as the management of the most frequent arthroplasty associated with metal toxicity, hip arthroplasty, mentioning the most frequent metals that produce toxicity and implants or arthroplasties that carry a risk of developing intoxication. A narrative review was carried out through various databases from January 2005 to January 2021; the search and selection of articles were carried out in journals indexed in English. The results provided updated and organized information on the clinical and pathophysiological manifestations caused by the different types of frequent metals that produce toxicity present in prosthetic materials, as well as the management of hip arthroplasty(AU)

La intoxicación por los metales presentes en materiales protésicos utilizados en ortopedia se produce por la liberación de metales de desecho, que se generan principalmente por el desgaste y la corrosión. El objetivo de este estudio es detallar cuáles son las manifestaciones clínicas y fisiopatológicas actuales de los metales protésicos utilizados en ortopedia así como el tratamiento de las artroplastias más frecuentes asociadas a toxicidad por metales, la artroplastia de cadera, mencionando los metales más frecuentes que producen toxicidad e implantes o artroplastias que conllevan riesgo de intoxicación. Se realizó una revisión narrativa a través de varias bases de datos desde enero de 2005 hasta enero de 2021; la búsqueda y selección de artículos se realizó en revistas indexadas en inglés. Los resultados proporcionaron información actualizada y organizada sobre las manifestaciones clínicas y fisiopatológicas provocadas por los diferentes tipos de metales frecuentes que producen toxicidad que están presente en los materiales protésicos, así como el manejo de la artroplastia de cadera(AU)

Principales factores biopsíquicos relacionados con la rehabilitación protésica dental en ancianos institucionalizados / Main biopsychic factors related to the dental prosthetics rehabilitation in institutionalized elderly

Introducción: El envejecimiento constituye la transformación demográfica más importante del mundo actual. La mayor proporción de personas de edad avanzada en la comunidad supone un reto de extraordinaria trascendencia en cuanto a la satisfacción de sus demandas sociales, sanitarias, económicas y culturales. Objetivo: Determinar los factores biopsíquicos relacionados con la rehabilitación protésica dental en ancianos. Métodos: Se realizó un estudio descriptivo y transversal de 60 ancianos pertenecientes a la Casa de Abuelos "Corazones contentos" del reparto Sueño -categorizados en adaptados y resistentes según factores psicológicos-, quienes acudieron al Departamento de Prótesis de la Clínica Estomatológica Provincial Docente Mártires del Moncada de Santiago de Cuba, desde marzo del 2018 hasta enero de 2020. Resultados: En la serie primaron los pacientes de 80 y más años de edad y del sexo femenino. Como característica biológica relevante figuró el desdentamiento total y como enfermedad crónica no trasmisible fue más frecuente la diabetes mellitus. De igual modo, el mayor número de ancianos correspondió a la categoría psicológica de resistente. Conclusiones: La mayoría de los ancianos se caracterizaron por un perfil psicológico resistente, determinado por un estilo de afrontamiento pasivo, expresión emocional negativa e inexistencia de autonomía, lo que condicionaba una actitud dañina hacia su salud bucal.

Introduction: Aging constitutes the most important demographic transformation nowadays. The higher proportion of elderly in the community supposes a challenge of extraordinary transcendence as for the satisfaction of their social, sanitary, economic and cultural demands. Objective: To determine the biopsychic factors related to the dental prosthetics rehabilitation in elderly. Methods: A descriptive and cross-sectional study of 60 elderly was carried out in "Corazones contentos" Home for the elderly at Sueño neighborhood -categorized in adapted and resistant according to psychological factors- who went to the Prosthesis Department of Mártires del Moncada Teaching Provincial Stomatological Clinic in Santiago de Cuba, from March, 2018 to January, 2020. Results: In the series there was prevalence of 80 years and over patients from the female sex. As outstanding biological characteristic there is the total dental loss and as chronic non transmissible disease the diabetes mellitus was more frequent. In a same way, the higher number of elderly corresponded to the psychological category of resistant. Conclusions: Most of the elderly are characterized by a resistant psychological profile, determined by a style of passive confrontation, negative emotional expression and lack of autonomy, what conditioned a harmful attitude toward their oral health.

Caracterización clínica y sociodemográfica de la población infantojuvenil entre 2 y 17 años con diagnóstico de deficiencia de extremidades superiores adquirida y/o congénita, en el Instituto Teletón Santiago / Clinical and sociodemographic characterization of the child and youth population between 2 and 17 years old with a diagnosis of acquired or congenital upper limbs deficiency at Instituto Teletón Santiago

INTRODUCCIÓN: Las deficiencias congénitas y adquiridas de extremidades superiores son una condición importante en la población pediátrica, existe poca información respecto de sus características clínicas, sociodemográficas y las asociadas al uso de prótesis. OBJETIVO: Describir las características clínicas y sociodemográficas de la población infantojuvenil entre 2 y 17 años con diagnóstico de deficiencia de extremidades superiores adquirida y/o congénita, pertenecientes al Instituto Teletón Santiago (IT-S). METODOLOGÍA: Estudio transversal, en población infantojuvenil entre 2 y 17 años, con diagnóstico de deficiencia de extremidades superiores, adquirida y congénita, que se atienden en el IT-S. Se realizó una revisión de fichas clínicas y encuesta para la obtención de datos de características sociodemográficas, clínicas y asociadas al uso de prótesis. RESULTADOS: Se incluyeron 215 pacientes, 93,9% de etiología congénita y 6,1% adquirida. El nivel de la deficiencia más frecuente fue parcial de mano con 51,6%, seguido del transradial con 33,1%. El 33% de los 215 pacientes estudiados tuvieron prescripción de prótesis. De los pacientes con prescripción de prótesis, 78,9% correspondía a mecánica y 18,3% a prótesis 3D. El 53,5% usaba su prótesis y el 46,4% no la usaba. Respecto a las prótesis 3D, el 84,6% no la usaban. En el nivel parcial de mano, el 83,3% no usaban su prótesis. CONCLUSIONES: Este estudio aporta datos de importancia clínica, destacando, una prescripción protésica de inicio temprano y asociada a las características clínicas de los pacientes. Así mismo, existe una alta tasa de no uso de las prótesis 3D, en el nivel parcial de mano.

INTRODUCTION: Congenital and acquired deficiencies of the upper extremities are an important condition in the pediatric population, however, there is almost no information regarding the clinical and sociodemographic characteristics and those associated with the use of prostheses. OBJECTIVE: Describe the clinical and sociodemographic characteristics of the child and adolescent population between 2 and 17 years old with a diagnosis of acquired and/or congenital upper limb deficiency, belonging to the Instituto Teletón Santiago (IT-S). METHODS: A cross-sectional study was conducted in child and adolescent population between 2 and 17 years old, with a diagnosis of acquired and/ or congenital upper limb deficiency treated in the IT-S. A review of clinical records and a survey were carried out to obtain data on sociodemographic and clinical characteristics and characteristics associated with the use of prostheses. RESULTS: 215 patients were included, 93.9% of congenital and 6.1% of acquired etiology. The most common level of deficiency was partial hand with 51.6%, followed by transradial with 33.1%. 33% of the 215 patients included had a prescription for a prosthesis. 78.9% of the patients with a prosthesis prescription had a mechanical prosthesis and 18.3% had a 3D prosthesis. 53.5% used their prosthesis and 46.4% did not use it. 84.6% of the patients with 3D prostheses did not use them and an 83.3% of the patients with a partial hand level deficiency did not use their prosthesis. CONCLUSION: This study provides data of clinical importance, highlighting an early-onset prosthetic prescription associated with the clinical characteristics of the patients. Likewise, there is a high rate of non-use of 3D prostheses at the partial hand level.

Descripción anatómica del abordaje anterior de cadera: seguridad y efecto para artroplastía total / Anatomical description of the anterior hip approach: safety and effect for total arthroplasty

Resumen: Introducción: El abordaje anterior de cadera fue descrito en 1881, desde entonces se han realizado diversos estudios que han demostrado ventajas significativas frente a los abordajes posterior y lateral directo de cadera. Material y método: Se llevó a cabo un estudio descriptivo con casos continuos no probabilísticos en el Instituto de Ciencias Forenses de Octubre de 2015 a Julio de 2017. Se describió anatomía y distancias a los paquetes vasculonerviosos. Se realizó correlación de Pearson y Rho de Spearman. Resultados: Se efectuaron 22 disecciones, el nervio femorocutáneo fue identificado en nueve especímenes, la distancia promedio del nervio femorocutáneo lateral al intervalo de Smith-Petersen fue 11.4 mm, se identificó la arteria circunfleja lateral ascendente debajo del recto femoral hacia la región central del abordaje, se colocaron los separadores alrededor de la articulación coxofemoral sin lesionar estructuras vitales, el separador más riesgoso se ubicó en la pared anterior del acetábulo, debajo del músculo iliopsoas con distancia promedio de 28.25 mm al paquete femoral. A mayor edad mayor distancia a los paquetes neurovasculares p < 0.05. Conclusiones: Alto nivel de seguridad del abordaje anterior para artroplastía de cadera, las distancias a estructuras vitales presentan un margen razonable, en artroplastía de cadera ofrece adecuada exposición de la articulación, visión directa del acetábulo y disección quirúrgica atraumática.

Abstract: Introduction: The anterior hip approach was described since 1881, since then several studies have been conducted that have shown significant advantages over the posterior and lateral direct approaches of the hip. Material and method: We conducted a descriptive study with continuous non-probabilistic cases at the Institute of Forensic Sciences from October 2015 to July 2017. Anatomy and distances were described to the neurovascular bundles. Correlation of Spearman's Pearson and Rho was performed. Results: 22 dissections were made, the Femorocutaneous Nerve was identified in 9 specimens, the average lateral Femorocutaneous Nerve distance at Smith-Petersen interval was 11.4 mm, We identified the Ascending Lateral Circumflex artery under the femoral rectum towards the central region of the approach, the separators could be placed around the coxofemoral joint without injuring vital structures, the riskier separator we place it in the anterior wall of the acetabulum, below the Psoasyland with an average distance 28.25 mm to the femoral package. The older you go, the longer the neurovascular bundles were located p < 0.05. Conclusions: High level of safety of the previous approach for hip replacement, distances to vital structures have a reasonable margin, hip replacement offers adequate joint exposure, direct acetabulum vision and atraumatic surgical dissection.

Experiencias del uso de ortoprótesis de mano impresa en 3D (Cyborg Beast) en adolescentes con amputación congénita de mano y sus cuidadores principales: un estudio de casos / Experiences of the use of 3D printed hand ortoprosthesis (Cyborg Beast) in adolescents with congenital hand amputation and their main caregivers: a study of cases

OBJETIVO: Describir la experiencia del uso de la ortoprótesis de mano impresa en 3D Cyborg Beast, en adolescentes usuarios de Teletón Santiago con amputación congénita de mano y sus cuidadores principales, que participaron en un estudio de casos para evaluar la funcionalidad de la mano proté sica. CASO CLÍNICO: Investigación de estudio de casos de tipo descriptivo, mediante entrevistas semi- estructuradas a cinco adolescentes con amputación congénita de mano y a sus cuidadores principales, las cuales fueron transcritas y analizadas mediante codificación abierta. Los participantes visualizan la ortoprótesis como una oportunidad para ellos asociándola a la normalidad. Asimismo, identificaron características positivas y negativas, enfatizando en estas últimas. Además, describieron efectos positivos y negativos producidos al utilizar la prótesis, destacando que el uso de la prótesis les permite ha blar sobre su condición. Finalmente, se presentan propuestas de mejora para la prótesis, definiéndose que se debe corregir el prototipo y cambiar la edad de la población objetivo. CONCLUSIONES: El estudio se configura como pionero al investigar un tema poco explorado, permitiendo entregar información respecto de la experiencia subjetiva de adolescentes que utilizan una ortoprótesis que actualmente tiene gran importancia mediática. Los participantes del estudio relataron dificultades para usar la ortoprótesis de mano, ya sea por aspectos de materialidad y diseño. La ortoprótesis no cumplió las expectativas de uso y estética.

OBJECTIVE: To describe the experience of using the 3D-printed prosthetic hand Cyborg Beast in ado lescents of Teletón Santiago with congenital hand amputation and their main caregivers who partici pated in a case study to evaluate the functionality of the prosthetic hand. CLINICAL CASE: Qualitative and descriptive research of case studies using semi-structured interviews with five adolescents with congenital hand amputation and their main caregivers. The information was transcribed and ana lyzed through open coding. Participants visualize the prosthesis as an opportunity for them by asso ciating it with normality. They also identify positive and negative characteristics, emphasizing in the latter. In addition, they described positive and negative effects produced when using the prosthesis, highlighting that the use of the prosthesis allows them to talk about their condition. Finally, im provement proposals for the prosthesis are presented, defining that the prototype must be corrected and change the age of the target population. CONCLUSIONS: The study is the first to investigate a little explored topic, allowing to provide information regarding the subjective experience of adolescents who use a prosthesis that currently has great media importance. The study participants reported dif ficulties in using the hand prosthesis, either due to materiality and design aspects. The prosthesis did not meet the expectations of use and esthetic.

Fatores associados à oferta de prótese dentária nas equipes de saúde bucal da Estratégia Saúde da Família / Factors associated with dental prosthesis procedures in the Brazilian Primary Health Care

A taxa de exodontia no Brasil têm diminuído, porém, grande parte da população necessita de reabilitação protética para restabelecer funções mastigatórias e estéticas. O objetivo do presente estudo foi analisar os fatores associados à realização de procedimentos de prótese dentária pelas Equipes de Saúde Bucal, na Atenção Primária à Saúde, no Brasil entre os anos de 2013 e 2014. Trata-se de um estudo transversal analítico utilizando um questionário estruturado aplicado a 18.114 Equipes de Saúde Bucal, por meio do PMAQ-AB. A variável dependente estudada foi a realização de qualquer tipo de prótese. As variáveis independentes envolveram questões relativas aos recursos humanos e gestão dos serviços de saúde. A estatística descritiva foi realizada, juntamente com uma análise de cluster. Um menor número de equipes (N= 5.531) faz parte do cluster 1, que é aquele que realiza próteses com maior frequência. A distribuição geográfica dos clusters revela que a maior proporção de equipes do cluster 1 está localizada nas regiões Nordeste e Sudeste (33,9% e 33,6%) respectivamente, seguida pela Região Sul (31,1%), Centro-Oeste (20,3%); e a menor proporção destas equipes que realizam estes serviços foi encontrada na Região Norte (9,3%). Os dados foram também submetidos à regressão logística binária simples e múltipla com o cálculo de odds ratio, intervalos de confiança 95% e p-valores. A maioria das Equipes de Saúde Bucal (57%) não realiza nenhum tipo de prótese dentária. As que têm maior chance de realizarem apresentam as seguintes características: (1) forma de ingresso do profissional no serviço por meio de concurso público; (2) existência de plano de carreira; (3) todos os profissionais da equipe estão envolvidos em educação permanente; (4) monitora indicadores de saúde; (5) realiza ações para identificação de necessidade de prótese; (6) recebe apoio para planejamento e organização; (7) recebe instituição de ensino superior; (8): recebe incentivo institucional permanente da gestão e (9) conta com existência do Centro de Especialidades Odontológicas. Os achados demonstram que a gestão de recursos humanos e os aspectos relacionados ao apoio da gestão municipal para a organização do processo de trabalho são de grande importância para a melhoria do cuidado à saúde envolvendo também a realização de próteses dentárias.

Tooth extraction rates have decreased in Brazil lately. However, a high percentage of the population needs prosthetic rehabilitation to restore masticatory and aesthetic functions. The objective of the present study was to analyze the factors associated with the performance of dental prosthesis procedures by the Oral Health Teams (OHT) in Primary Health Care in Brazil, between 2013 and 2014. This is a cross- sectional analytical study using a structured applied in 18,114 OHT. The dependent variable studied was the performance of any type of prosthesis. Independent variables involved questions related to human resources and health service management. Descriptive statistics followed by a cluster analysis were performed. Data were also submitted to simple and multiple binary logistic regression with odds ratio calculation, 95% confidence intervals and p-values. The results showed that a smaller number of teams (N = 5,531) is part of cluster 1, which is the one that performs prostheses more frequently. Geographic distribution of clusters reveals that the largest proportion of cluster 1 teams is located in the Northeast and Southeast regions of the country (33.9% and 33.6%), followed by the South (31.1%) and Central West regions (20.3%). The lowest proportion of these teams performing prosthetic services was found in the Northern Region (9.3%). Most OHT (57%) does not perform any type of dental prosthesis. However, the teams that have greater chance of accomplishing are those with the following characteristics: (1) professional ticket form in the service by means of public competition (2) professionals with a career plan; (3) which are involved in continuing and permanent education actions related to the team needs; (4) monitors health indicators; (5) perform actions to identify the need for prosthesis in the target population; (6) receive support for planning and organization of the service; (7) that involve interns from institutions of higher education in the team tasks; (8) have permanent institutional support and, finally, (9) counts with a service of a Center of Dental Specialties, that allows them to send patients to secondary care. The present findings demonstrate that the management of human resources and the aspects related to the support of the municipal management and organization of the work process is of great importance for the improvement of the health care. In addition, those aspects directly impact accomplishment of dental prostheses to the population.

Approaches to the preparation of the oral cavity for prosthetics using computer simulation: An analysis of domestic and foreign experience / 国际药学研究杂志

The article analyzes domestic and foreign experience in planning the preparation of oral cavity for prosthetics. Recently, thanks to the development of computer technology, the possibility of virtual 3D-modeling of the prosthesis design and its further prototyping has appeared [1; 2; 5]. Digital treatment planning, based on three-dimensional imaging procedures, allows you to plan therapy with absolute precision and makes the outcome of treatment exactly predictable. Analysis of domestic experience shows that one of the most common in the practice of orthopedic dentistry is the program Blue Sky Plan. Patterns made in the program are easily exported to STL files and do not require additional processing. The program contains a wide range of implant systems. In foreign practice, guided surgery from DENTSPLY Implants is very popular, which offers a comprehensive solution for digital treatment planning and placement of implants based on SIMPLANT software templates.

Criteria for success in dental implants / 华西口腔医学杂志

With the comprehensive application and development of implant dentistry in recent years, multi-institutional data have supported a large number of clinical research findings. A consensus was gradually reached on the evaluation of the state and effect of implants and types of indicators that were selected after restoration. This study aims to examine the frequently used criteria to define treatment success in implant dentistry.

Cranioplasty using Polymethylmethacrylate (PMMA) self-curing by the conventional casting process: clinical case report / Cranioplastia com uso do Polimetilmetacrilato (PMMA) autopolimerizável pelo processo de moldagem convencional: relato de caso clínico

ABSTRACT Cranioencephalic trauma which results in extensive edema and / or bruising usually requires surgical treatment through a greater withdrawal of the bone portion. Thus, the absence of bone tissue implies the lack of protection of the brain tissue or even compromises the esthetics especially when located in the frontal or frontoparietal region. The purpose of this case report is to describe a treatment option for head trauma, through the prefabricated part by obtaining the skull model. These bone faults can be reconstructed either by the direct method using polymethylmethacrylate directly on the defects or by means of pre-made pieces such as prototyping or from the skull model. Although other techniques have many good points, some show certain drawbacks, from storage conditions below abdominal fat, preheating due to the release of heat during the high polymerization reaction or the high cost when they are prototyped. The technique described in this work reports its simple performance, eliminating the risk of local heating, allows prior sterilization in autoclave, it is biocompatible, allows perfect anatomical recovery, easy placement, low cost, also highlighs the advantage of the bucomaxillofacial surgeon's performance due to the familiarization with the relevant head and neck procedures. Clinical and tomographic examination after 24 months of treatment showed stability of the polymethylmethacrylate plate, adhesions to the bone margins, and absence of tissue alterations.

RESUMO Os traumatismos cranioencefálicos que resultam em extensos edemas e ou hematomas normalmente, requerem tratamentos cirúrgicos por meio de uma retirada maior de porção óssea. Deste modo, a ausência do tecido ósseo implica na falta de proteção do tecido cerebral ou até mesmo comprometer a estética especialmente, quando localizadas na região frontal ou frontoparietal. O objetivo deste relato de caso é descrever uma opção de tratamento para os traumatismos cranioencefálicos, por meio da peça pré-fabricada mediante a obtenção do modelo do crânio. Estas falhas ósseas podem ser reconstruídas tanto pelo método direto utilizando o polimetilmetacrilato diretamente sobre as falhas ou por meio das peças pré-confeccionadas como a prototipagem ou a partir do modelo do crânio. Embora outras técnicas apresentem muitos pontos positivos, algumas mostram determinados inconvenientes, desde condição de armazenamento abaixo da gordura abdominal, aquecimento prévio devido a liberação de calor durante a reação de alto polimerização ou o alto custo quando são prototipadas. A técnica neste trabalho descrita relata sua facilidade de execução, elimina o risco do aquecimento local, permite a prévia esterilização em autoclave, é biocompatível, permite a perfeita recuperação anatômica, fácil colocação, baixo custo, ressaltando ainda a vantagem da atuação do cirurgião bucomaxilofacial devido sua familiarização com os procedimentos pertinentes a cabeça e pescoço. Em exame clínico e tomográfico após 24 meses do tratamento, observa-se estabilidade da placa de polimetilmetacrilato, aderências às margens ósseas, e ausência de alterações tissulares.

Utility of facebow in the fabrication of complete dentures, occlusal splints and full arch fixed dental prostheses: A systematic review

The objective of this study is to assess the utility of facebow transfer in the fabrication of occlusal splints, complete dentures and full arch fixed dental prosthesis. Materials and Methods: A systematic review protocol was registered at PROSPERO registry, University of York, UK (CRD42016041919). Following databases were explored: PubMed, CINAHL, Cochrane, and Web of knowledge. The PICO model included participants who received occlusal splint or complete denture or full arch fixed dental prosthesis at the centric relation position. The intervention was the use of facebow transfer. Comparators were prosthesis made without using a facebow. Outcomes were the patient satisfaction of the prosthesis and the need for laboratory adjustments. Only randomized clinical trials were included in the present review. A customized data extraction pro forma was used to extract the data and assess its quality. Results: A total of 505 articles were retrieved. On excluding duplicates, protocols, case reports, case series, narrative reviews, etc., only eight studies were selected for review. Six clinical trials on 249 complete dentures and two clinical trials on 65 occlusal splints were reviewed. No study on full arch crown and bridge work satisfied the inclusion criteria. Conclusions: The use of facebow did not yield a superior fit or comfort of the complete dentures or occlusal splints. Therefore, there is no evidence of the utility facebow transfer for these prostheses. However, no inference could be drawn for its utility in full arch fixed dental prosthesis as there were no studies to draw an inference.

Rehabilitación protésica de adultos mayores con dispepsia funcional / Prosthetics rehabilitation in elderly with functional dyspepsia

Se realizó un estudio descriptivo y transversal de 71 adultos mayores con dispepsia funcional, atendidos en el Servicio de Gastroenterología del Policlínico Sur Asdrúbal López Vázquez de la provincia de Guantánamo, desde mayo de 2012 hasta igual mes de 2014, con el objetivo de evaluar la efectividad de la rehabilitación protésica en estos pacientes. En la serie predominaron el sexo femenino (53,7 por ciento), el grupo etario de 60-69 años (53,7 por ciento), la sensación de plenitud y la saciedad precoz como síntomas principales, así como los dientes perdidos, según el índice de mortalidad dentaria (30,4 por ciento). El tratamiento rehabilitador permitió eliminar casi el total de los síntomas encontrados, por lo cual resultó efectivo y constituye un elemento a tener en cuenta para eliminar o disminuir los síntomas en ancianos con este trastorno

A descriptive and cross-sectional study of 71 elderly with functional dyspepsia, assisted in the Gastroenterology Service of Asdrúbal López Vázquez Southern Polyclinic in Guantánamo, was carried out from May, 2012 to the same month in 2014, with the objective of evaluating the effectiveness of the prosthetics rehabilitation in these patients. In the series there was a prevalence of the female sex (53.7 percent), 60-69 age group (53.7 percent) and early sensation of filling as main symptoms, as well as the lost teeth, according to the dental mortality rate (30.4 percent). The rehabilitative treatment allowed to eliminate almost all the symptoms found, reason why it was effective and constitutes an element to take into account to eliminate or diminish the symptoms in elderly with this disorder

Diagnóstico clínico de pacientes con estomatitis subprótesis portadores de aparatología protésica / Clinical diagnosis of patients with subprosthesis stomatitis bearers of prosthetic aparatology

Se efectuó un estudio descriptivo y transversal de 75 pacientes con estomatitis subprótesis de la mucosa del paladar duro portadores de aparatología protésica removible, atendidos en la consulta estomatológica del Policlínico de Especialidades del Hospital Provincial Clinicoquirúrgico Docente Saturnino Lora Torres de Santiago de Cuba, desde noviembre de 2014 hasta igual mes de 2015, a fin de caracterizarles desde el punto de vista clínico. En la casuística prevalecieron el sexo femenino, el grupo etario de 60 años y más, así como la ausencia de sintomatología. La estomatitis grado I resultó la más frecuente; mientras que la prótesis desajustada, el tiempo de uso continuo y el hábito de no retirar la prótesis fueron los principales factores predisponentes en la aparición de esta enfermedad. De ahí la importancia de realizar acciones educativas que permitan disminuir la presencia de dicha afección

A descriptive and cross-sectional study of 75 patients with stomatitis subprosthesis of the hard palate mucus bearers of removable prosthetic aparatology, assisted in the stomatological service of the Specialties Polyclinic in Saturnino Lora Torres Teaching Clinical Surgical Provincial Hospital from Santiago de Cuba, was carried out from November, 2014 to the same month in 2015, in order to characterized them from the clinical point of view. In the case material there was a prevalence of the female sex, the 60 years and over age group, as well as the absence of symptomatology. Grade I estomatitis was the most frequent; while loosened prosthesis, the time of continuous use and the habit of not removing away the prosthesis were the main predisposing factors in the emergence of this disease. Reason why it is important to carry out educational actions that allow to diminish the presence of this disorder

Alineación Estática de Prótesis a través de Variables Cinéticas y Métodos de Aprendizaje de Máquina / Static Alignment of Prosthetics using Kinetic Variables and Machine Learning Methods

El proceso complejo de la alineación en las prótesis y la no existencia de un modelo predictivo para alineación estática de prótesis transtibiales es el foco de esta investigación.Objetivo: Obtener un modelo computacional que permita establecer la existencia de la alineación estática de prótesis transtibiales a través de parámetros cinéticos presentes en amputados transtibiales unilaterales. Métodos: Se realizó la construcción de una base de datos de valores de Centro de Presión (COP) y distribución de presión plantar en amputados medidos en el Servicio de Amputados y Prótesis del Hospital Militar Central, Bogotá, Colombia. Los datos incluyen valores cinéticos medidos con la prótesis en alineación y en desalineación. Resultados: Se desarrollaron tres modelos computacionales, una red neuronal, una máquina de soporte vectorial y un árbol de decisión, se realizó la comparación del desempeño de los modelos. Conclusiones: Los modelos que hacen uso de máquinas de soporte vectorial y de árboles de decisión tuvieron mayor desempeño que la red neuronal. De esta forma, se comprueba que la alineación estática se puede llevar a cabo de forma objetiva empleando recursos tecnológicos(AU)

The complex process of alignment in prosthesis and the non-existence of a model for static alignment of transtibial prostheses is the focus of this research. Objective: Obtain a computational model to establish the existence of the static alignment of transtibial prostheses through kinetic parameters present in unilateral transtibial amputees. Methods: In the Amputee and Prosthetic Service of the Central Military Hospital, Bogotá, Colombia, the construction of a data base of Pressure Center (COP) and distribution of plantar pressure in amputees was carried out. The data include kinetic values ​​measured with the prosthesis in alignment and misalignment. Results: Three computational models were developed, a neural network, vector support machines and decision trees, the performance of the models was compared. Conclusions: Models that make use of vector support machines and decision trees had higher performance than the neural network. In this way, it is verified that the static alignment can be carried out objectively using technological resources(AU)

Rehabilitación protésica de un paciente con defecto nasal / Prosthetics rehabilitation of a patient with nasal defect

Se describe el caso clínico de un paciente de 84 años de edad, a quien se le realizó exéresis total del órgano nasal desde hacía 5 años aproximadamente en el Hospital Oncológico Conrado Benítez de Santiago de Cuba, a causa de un carcinoma epidermoide del apéndice nasal, por lo cual fue remitido al Centro de Rehabilitación Protésica Bucomaxilofacial de esta provincia para ser rehabilitado. Al examen físico extrabucal se observó ausencia total de la nariz, que simulaba una facies leonina, con bordes cicatrizados y bien definidos. La mayor preocupación del paciente era ocultar su defecto, de manera que se le realizó una prótesis nasal de silicona para mejorar su estética y funcionalidad

The case report of an 84 years patient is described, to whom a total removal of the nasal organ was carried out about 5 years ago-at Conrado Benítez Cancer Hospital in Santiago de Cuba - due to an epidermoid carcinoma of the nasal appendix, reason why he was referred to the Oralmaxillofacial Prosthetics Rehabilitation Center of this province to be rehabilitated. A total absence of the nose was observed in the extraoral physical examination that simulated a leonine facies, with well defined healed borders. The patient's biggest concern was to hide his defect, so a nasal silicone prosthesis was placed to improve his aesthetics and functionality

Relación entre distancia intercantal y ancho de dientes anterosuperiores en jóvenes chilenos / Relationship between intercanthal distance and width of maxillary anterior teeth in young chilean population

RESUMEN: Objetivo: La distancia intercantal (DIC) es utilizado para la selección de los dientes anterosuperiores y es la dimensión más estable en el tiempo Sin embargo, es variable entre razas y poblaciones, particularmente en Sudamérica. El objetivo de este estudio es establecer la correlación entre DIC y el ancho de los dientes maxilares anteriores en una población adulta jóven del sur de Chile. Materiales y métodos: Estudio de corte transversal. Participaron 111 estudiantes voluntarios (promedio edad 22.4 años; 65.7% hombres) de la ciudad de Valdivia, sur de Chile. Se midió DIC y el ancho mesiodistal del incisivo central superior, la distancia lineal de los cuatro incisivos superiores y de los seis dientes anterosuperiores en modelos de estudio. Se analizó la diferencia de las mediciones según sexo (test de Student; p<0.05) y la correlación lineal entre DIC y las medidas dentales (r=0.8; p<0.05. STATA v.10.0) Resultados: Todas las mediciones fueron significativamente mayores en hombres que en mujeres (p<0.05). Se observó una correlación estadísticamente significativa entre la DIC y la distancia lineal de los cuatro incisivos superiores (p=0.04) y de los seis dientes anterosuperiores (p=0.03). Se obtuvo una razón de 1:0.94 y 1:1.28 de DIC con la distancia lineal de los cuatro incisivos superiores y los seis dientes anterosuperiores, respectivamente. Conclusión: La DIC presentó una correlación lineal y proporcional con los dientes anteriores, pudiendo estimar el ancho lineal de los dientes anterosuperiores en una población adulta joven del Sur de Chile.

ABSTRACT: Objective: Intercanthal distance (ICD) is a parameter used to select the upper anterior teeth and the most stable measurement overtime. However, it is variable between race and populations, particularly in South America. The aim of this study was to establish the correlation between ICD and the width of maxillary anterior teeth in young adult population from southern of Chile. Materials and Methods: A Cross-sectional study was designed. One Hundred eleven volunteers students (average age 22.4 years; 65.7% men) from Valdivia city (southern of Chile) were included. ICD and mesiodistal width of maxillary central incisor, linear distance of the four upper incisors and linear distance of the six upper front teeth in plaster study models weremeasured. The mean of difference measurement between sex (ttest; p<0.05) and the linear correlation between DIC and the width of the upper anterior were analyzed (r=0.8; p<0.05; STATA v.10.0). Results: All measurement were significantly higher in male than female (p<0.05). A statistically significant correlation between ICD and distance of the four upper incisors (p=0.04) and the six upper front teeth (p=0.03) were observed. A 1:0.94 and 1:1.28 ratios between ICD with the linear distance of the upper incisors and the six maxillary anterior were obtained respectively. Conclusion: ICD presented a linear and proportional correlation with maxillary anterior teeth. With these results it is possible to estimate the linear width of the upper front teeth in young adult population from southern of Chile.