18 research outputs found

    Condutas de diagnóstico

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    The authors present review of literatura and analysis of four clinicai cases abording the steps that should be follow to get to a right diagnosis.Os autores apresentam revisão de literatura e análise de quatro casos clínicos a respeito das condutas que devem ser seguidas para a obtenção de um correto diagnóstico

    A new condylar fracture fixation technique

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    Mandibular condyle fractures are common and the best approach to treating them has been extensively discussed in the literature. There are basically two different approaches to treatment of condyle fractures: the functional method and the surgical method. In the case described here, the patient underwent general anesthesia for open reduction and internal fixation. After a submandibular approach to access the fracture site, a bur was used to make a perforation in the base of the condylar segment and a long screw (11 mm) was inserted in place leaving a portion protruding from the bone (6 mm). A groove was made in the lateral part of the mandibular ramus to accommodate the extra osseous portion of the screw. After reduction and stabilization of the condylar segment, a 2.0 mm miniplate was installed over the screw leaving the screw head in an inferior position to maximize retention. The patient enjoyed a rapid postoperative recovery and early jaw function was restored in a short period of time

    Soft palate fibroliporna: case report

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    O presente artigo relata um caso cle fibrolipoma em palato mole. Esta neoplasia benigna é considerada por muitos autores como uma variante histológica do lipoma, onde ocorre a presença marcantc de fihras colágenas interpostas com as células adipócitas o que designa o seu nome. A ocorrência desta lesão no palato mole 6- considerada rara e o tratamento de eleição é a excisão cirúrgica total.'t'he present article reports a casr of fibrolipoma in soft palatc. This benign nroplasia is considcred by many anthors as a histologi('a1 variant of thr lipoma, whcrc there is a remarliahle presence of collagen Blbers entwined with thc adipocites, which desipates its name. The occurrence ofthis lesion in thc soft palate is considered rare and the treatment is the total excision of this lesion

    Comparative histomorphometric analysis between α-Tcp cement and β-Tcp/Ha granules in the bone repair of rat calvaria

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    This study compared the effect of two bioceramics on the process of bone repair: α-tricalcium phosphate (α-TCP) cement and β-tricalcium phosphate hydroxyapatite particles (β-TCP/HA). Calvarial defects were created in 50 rats, divided into two groups (α and β/HA). Software was used at 7, 21, 60, 90 and 120 days to assess bone formation. Mean new bone formation rates were as follows: α group, 1.6% at 7 days, 5.24% at 21 days, 24% at 60 days, 30.21% at 90 days and 50.59% at 120 days; β/HA group, 1.94% at 7 days, 2.53% at 21 days, 12.47% at 60 days, 26.84% at 90 days and 38.82% at 120 days; control group, 0.15% at 7 days, 10.12% at 21 days, 15.10% at 60 days, 18.94% at 90 days, 48.50% at 120 days. Both materials are osteoconductive and biocompatible. Perhaps the larger rate of new bone formation observed in the α-TCP group, it also occurs in the β-TCP/HA group within a longer time period

    Soft palate fibroliporna: case report

    No full text
    O presente artigo relata um caso cle fibrolipoma em palato mole. Esta neoplasia benigna é considerada por muitos autores como uma variante histológica do lipoma, onde ocorre a presença marcantc de fihras colágenas interpostas com as células adipócitas o que designa o seu nome. A ocorrência desta lesão no palato mole 6- considerada rara e o tratamento de eleição é a excisão cirúrgica total.'t'he present article reports a casr of fibrolipoma in soft palatc. This benign nroplasia is considcred by many anthors as a histologi('a1 variant of thr lipoma, whcrc there is a remarliahle presence of collagen Blbers entwined with thc adipocites, which desipates its name. The occurrence ofthis lesion in thc soft palate is considered rare and the treatment is the total excision of this lesion

    Achados microscópicos no tecido ósseo relacionados à utilização do laser diodo (830 ηm) em mandíbulas de ovelhas submetidas à distração osteogênica

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    Objetivo: Avaliar as características microscópicas do efeito do laser diodo de Arsenieto de Gálio-Alumínio (AsGaAl - 830 ηm), aplicado no período de ativação e consolidação de mandíbulas de ovelhas submetidas a distração osteogênica. Métodos: Dezoito ovinos foram submetidos a procedimento cirúrgico para colocação de distrator ósseo em região de mandíbula do lado esquerdo, sendo divididos em três grupos: 1 – Controle; 2 – Irradiação de laser no período de ativação; 3 – Irradiação de laser no período de contenção. As irradiações foram feitas em cinco seções em dias alternados, com doses de 4,0J/cm2 em quatro pontos pré-determinados, somando 16J por seção. Após quatro dias de latência no pós-operatório, 10 dias de ativação do distrator (1 mm/dia) e 21 dias de contenção os animais foram mortos e as peças removidas para análise microscópica. Resultados: Os resultados foram que os grupos irradiados com laser (AsGaAl) apresentaram maior disposição de trabéculas ósseas mineralizadas em relação ao grupo controle, contudo, no Grupo 2 foi observada a presença de tecido cartilaginoso. Conclusão: O laser atuou de forma mais favorável quando utilizado no período de consolidação, após o alongamento ósseo.Purpose: To analyze the microscopic characteristics of the effect of Gallium-Aluminum Arsenid diode laser (GaAlAs - 830 ηm) applied during the activation and consolidation period to ovine mandibles submitted to distraction osteogenesis. Methods: Eighteen sheep underwent surgery in order to have bone distractors implanted in the left side of the jaw area. They were divided into three groups: 1 – Control; 2 – Laser irradiation during the activation period; 3 – Laser irradiation during the fixation period. The irradiation was carried out in five sessions, on every other day, with 4,0J/cm2 doses applied to four pre-established areas, totaling 16J per session. After four days of latency under post-operative care, ten days of distractor activation (at 1mm/day) and twenty-one days of fixation the animals were sacrificed and the devices removed for microscopic analysis. Results: The groups that received laser irradiation (GaAlAs) presented a greater amount of mineralized bone trabeculae when compared to the Control Group. Despite that, cartilaginous tissues were also found in Group 2. Conclusion: The laser has been more favorable when used in the consolidation period, after bone elongation

    Achados microscópicos no tecido ósseo relacionados à utilização do laser diodo (830 ηm) em mandíbulas de ovelhas submetidas à distração osteogênica

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    Objetivo: Avaliar as características microscópicas do efeito do laser diodo de Arsenieto de Gálio-Alumínio (AsGaAl - 830 ηm), aplicado no período de ativação e consolidação de mandíbulas de ovelhas submetidas a distração osteogênica. Métodos: Dezoito ovinos foram submetidos a procedimento cirúrgico para colocação de distrator ósseo em região de mandíbula do lado esquerdo, sendo divididos em três grupos: 1 – Controle; 2 – Irradiação de laser no período de ativação; 3 – Irradiação de laser no período de contenção. As irradiações foram feitas em cinco seções em dias alternados, com doses de 4,0J/cm2 em quatro pontos pré-determinados, somando 16J por seção. Após quatro dias de latência no pós-operatório, 10 dias de ativação do distrator (1 mm/dia) e 21 dias de contenção os animais foram mortos e as peças removidas para análise microscópica. Resultados: Os resultados foram que os grupos irradiados com laser (AsGaAl) apresentaram maior disposição de trabéculas ósseas mineralizadas em relação ao grupo controle, contudo, no Grupo 2 foi observada a presença de tecido cartilaginoso. Conclusão: O laser atuou de forma mais favorável quando utilizado no período de consolidação, após o alongamento ósseo.Purpose: To analyze the microscopic characteristics of the effect of Gallium-Aluminum Arsenid diode laser (GaAlAs - 830 ηm) applied during the activation and consolidation period to ovine mandibles submitted to distraction osteogenesis. Methods: Eighteen sheep underwent surgery in order to have bone distractors implanted in the left side of the jaw area. They were divided into three groups: 1 – Control; 2 – Laser irradiation during the activation period; 3 – Laser irradiation during the fixation period. The irradiation was carried out in five sessions, on every other day, with 4,0J/cm2 doses applied to four pre-established areas, totaling 16J per session. After four days of latency under post-operative care, ten days of distractor activation (at 1mm/day) and twenty-one days of fixation the animals were sacrificed and the devices removed for microscopic analysis. Results: The groups that received laser irradiation (GaAlAs) presented a greater amount of mineralized bone trabeculae when compared to the Control Group. Despite that, cartilaginous tissues were also found in Group 2. Conclusion: The laser has been more favorable when used in the consolidation period, after bone elongation
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