Root reconstructed with mineral trioxide aggregate and guided tissue regeneration in apical surgery: a 5-year follow-up

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Bone defect repair on the alveolar wall of the maxillary sinus using collagen membranes and temporal fascia: an experimental study in monkeys

Few studies has been done using guided bone regeneration in maxillary sinus defects. AIM: To assess the bone repair process in surgical defects on the alveolar wall of the monkey maxillary sinus, which communicates with the sinus cavity, by using collagen membranes: Gen-derm - Genius Baumer, Pro-tape - Proline and autologous temporal fascia. MATERIALS AND METHODS: In this prospective and experimental study, orosinusal communications were performed in four tufted capuchin monkeys (Cebus apella) and histologic analysis was carried out 180 days after. RESULTS: In the defects without a cover (control), bone proliferation predominated in two animals and fibrous connective tissue predominated in the other two. In defects repaired with a temporal fascia flap, fibrous connective tissue predominated in three animals and bone proliferation predominated in one. In the defects repaired with Gen-derm or Pro-tape collagen membranes there was complete bone proliferation in three animals and fibrous connective tissue in one. CONCLUSIONS: Surgical defect can be repaired with both bone tissue and fibrous connective tissue in all study groups; collagen membranes was more beneficial in the bone repair process than temporal fascia or absence of a barrier.

Enxerto ósseo em odontologia: revisão de literatura

Bone is a specialized connective tissue, vascular and dynamic changes over the life of the organism. When injured, has a unique ability to regenerate and repair without the presence of scars, but in some situations due to the size of the defect, the bone tissue does not regenerate so completely, it is necessary to carry out bone grafting procedures. Considering there are various types of grafts and various donor sites. Thus, the aim of this study was to review the literature to some type of graft most commonly used in dentistry. Given the importance of bone reconstruction in oral and maxillofacial surgery, it is necessary to know the viability and influence of biomaterials, or not associated with autogenous grafts in bone repair. Even this, with many qualities, but further studies should be done to achieve each day, a synthetic material compatible with bone tissue lost in adequate amounts without requiring extra-oral surgeries that are considered to be devoted to higher morbidity.

Estudo comparativo do Biogran® e Endobon® associados a implantes com defeitos periimplantares

Pós-graduação em Odontologia - FOA

Estudo comparativo do desempenho de diferentes membranas oclusivas de Látex Natural no reparo ósseo

Introduction: In dentistry, alveolar bone resorption is a limiting factor in the well being of individuals directly interfering in the stomatognathic system, causing problems in the context of overall health. Aiming to promote biological methods that can stimulate bone regeneration, several biomimetic strategies have been developed by the use of diverse materials possible to the bone matrix, culminating in the development of techniques that promote such repair. Objective: This work is a comparative study of the performance of films made with latex as occlusive membrane for Guided Bone Regeneration (GBR) procedure in three preparations: Latex preserved in ammonia, produced by Latex rubber clones IAN873 and PR255 polymerized immediately after collection and without use ammonia as a preservative. Methods: Sixty Wistar rats were randomly divided into 4 groups of 15 animals in which bone defects of critical size (8mm diameter) were made surgically in the skull. Group A was treated by GBR through the membrane latex preserved with ammonia, Group B received the membrane made of latex from IAN873, Group C, the membrane clone PR255 and group D was not treated by GBR. After a period of 7, 15 and 50 days, 5 animals from each group were euthanized, and specimens containing bone defect collected for microscopic examination (descriptive histology and histomorphometry). Results: The results showed that after 50 days there was bone formation in higher proportions in group D (p <0.05, ANOVA followed by Tukey), suggesting that further experiments should be conducted to conclude about the presence of ammonia and the influence of kind of rubber. Conclusion: GOR is a procedure proven effective in the treatment of bone defects. Therefore, further experiments should be conducted to reach a conclusion regarding the presence of ammonia in the latex composition for the manufacture of membranes, as well as the difference induced by the species of rubber.

Investigação de técnicas para o acompanhamento do desgaste de um par engrenado utilizando tribologia e análise da resposta dinâmica processada via função densidade probabilidade Beta

Pós-graduação em Engenharia Mecânica - FEIS

Síndrome de Sturge-Weber: relato de caso

Contexto: É descrita uma síndrome congênita rara e suas manifestações típicas visando seu diagnóstico precoce. Descrição do caso: Pacientedo sexo feminino, com 15 anos de idade, com glaucoma congênito em acompanhamento pelo Serviço de Oftalmologia da UniversidadeEstadual Paulista (Unesp) foi encaminhada ao Serviço de Dermatologia com um ano de idade devido a manchas eritêmato-violáceasextensas distribuídas nos dois terços superiores da hemiface esquerda e em outras localidades do corpo desde o nascimento. A mãerelatava convulsões desde um ano e atraso do desenvolvimento neuropsicomotor. Nos antecedentes familiares, negava casos semelhantes.O diagnóstico da Síndrome de Sturge-Weber foi estabelecido pelo quadro clínico característico e pelos exames complementares quedemonstraram, no sistema nervoso central, atrofia e calcificação corticais, além de alterações oftalmológicas como glaucoma e buftalmo.Discussão: A síndrome de Sturge-Weber ocorre em 1 a cada 20.000 a 50.000 nascidos vivos e é caracterizada por malformações vascularesmanifestadas por manchas eritêmato-violáceas, mais conhecidas como manchas vinho do Porto , localizadas no território do ramooftálmico do nervo trigêmeo, com acometimento neurológico e possível acometimento ocular. O prognóstico depende das complicaçõesneurológicas, as quais não guardam relação com a extensão das lesões cutâneas. Conclusões: Relata-se afecção rara, cujo diagnósticoprecoce direciona o acompanhamento multidisciplinar.

Características fenotípicas do nanismo em pôneis neonatos: relato de casos

Three newborn Mini-Horses and one Brazilian Pony horses were presented to the Veterinary Hospital with phenotypic appearance of dwarfism. They had relatively larger head conformation, occlusive dental defect and musculoskeletal changes such as abnormal short limbs and deformation on the third metatarsal bone. The radiographic examination showed abnormal growth plates on femoral condyle and proximal thirds metatarsal bones. Due to the high possibility of future complications and quality of life loss, the animals were euthanized. We emphasize the importance of recognition of phenotypic changes related to dwarfism in horses, enabling the phenotypic diagnosis can direct crossings for nontransmission of this abnormality as genetic inheritance.

Lissencefalia em cães e gatos: revisão

Lissencephaly is a condition characterized by a lack of cerebral convolutions and sulci, which results from defective migration of nervous cells precursors in the telencephalus. The cause is presumably genetic. Lhasa-Apso dogs are most frequently affected, even though it may also occur in association with cerebellar hypoplasia in the Irish Setter, Wire-Haired Terrier and Samoieda breeds. This association was also reported in a cat. Clinical signs consist of dementia, aggressiveness, seizures, visual and olfactive dysfunctions, slow postural reactions and reduced menace response. Definitive diagnosis requires exams such as magnetic resonance imaging, cerebral biopsy or necropsy. There is no specific therapy for this disease, and seizures must be treated with anticonvulsants. The aim of this study is to review the literature regarding lissencephaly.

Uso de plasma rico em plaquetas em úlceras de córnea em cães

This study aims to clinically and macroscopically evaluate the adjuvant therapy with platelet-rich plasma in the form of eyedrops or clot, for corneal ulcers in dogs treated at the Veterinary Ophthalmology Service. We analyzed 20 eyes diagnosed with ulcerative keratitis, divided into two experimental groups. The eyedrop group (GC) was composed of eyes treated topically with eyedrops of autologous plateletrich plasma (PRP), and the clot group (GT) was composed of eyes treated with a platelet-rich clot and covered with a third eyelid for retention of the clot. The groups were evaluated by clinical and macroscopic analysis and by the analysis of epithelial defect reduction, at different times, at three, five, ten, 15 and 30 days, except for the third day in GT. The coverage of the third eyelid was removed on the fifth day. In both groups the inflammation signs reduced, there was an improvement in ocular sensibility and proper repair of epithelial defect. All GT eyes and 70% GC eyes showed complete healing on the fifth day, the remainder of GC completed healing on the tenth day. PRP in the form of eyedrops and clot is an excellent adjuvant therapy to be instituted in the clinical treatment for corneal ulcer in dogs, because it decreases the inflammatory signs and the ocular pain and it potentially assists in healing epithelial defects.

Cimentos bioativos injetáveis funcionalizados com peptídeo osteogênico para reparação óssea

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Hipomineralização molar incisivo: qualidade de vida relacionada à saúde bucal e percepção estética em escolares de 8 a 12 anos

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Reparo ósseo em scaffolds de TI6AL4V sinterizados pela tecnologia de sinterização direta de metais a laser (DMLS) submetidos a tratamento de superfície associado à aplicação de ultrassom de baixa intensidade (LIPUS)

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Efeitos de modificações físicas sobre as propriedades de amido de tuberosas

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Avaliação comparativa do potencial osteocondutor de quatro diferentes substitutos ósseos em defeitos críticos em calvárias de coelhos

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)