O tratamento compensatório da Classe II e mordida aberta esquelética com bráquetes autoligados ­ relato de caso / Compensatory treatment of Class II and skeletal open bite with selfligating brackets ­ case report

Resumo A maloclusão de Classe II pode ser de origem dentária, esquelética ou a combinação de ambas e está presente em aproximadamente 60% dos pacientes que procuram tratamento ortodôntico corretivo. Paciente Padrão II facial necessita muitas vezes de descompensação dentária associada à cirurgia ortognática para correção das bases ósseas. Com o uso cada vez mais frequente do sistema autoligado na Ortodontia, o número de pacientes que tiveram indicação de extração como parte do seu tratamento diminuiu consideravelmente. O tratamento compensatório tem como objetivo minimizar com movimentos dento-alveolares as deformidades esqueléticas presentes. Este trabalho relata através de caso clínico, a eficiência do sistema autoligado em paciente Padrão II, sem extrações, com metas terapêuticas expansionistas em associação ao uso de elásticos de Classe II. Devido à rejeição do paciente à cirurgia ortognática, o tratamento compensatório resultou na camuflagem das discrepâncias esqueléticas através do sistema autoligado. Apesar da indicação cirúrgica, o tratamento compensatório apresentou movimentações dentárias significativas, resultando em sucesso do tratamento com considerável melhora facial. (AU)

Abstract Class II malocclusion can be dental, skeletal or a combination of both and is present in approximately 60% of patients seeking corrective orthodontic treatment. Facial Pattern II patient often needs dental decompensation associated with orthognathic surgery to correct the bone bases. With the increasing use of the self-ligating system in Orthodontics, the number of patients who were indicated for extraction as part of their treatment has decreased considerably. Compensatory treatment aims to minimize skeletal deformities with dento-alveolar movements. This paper reports through a clinical case, the efficiency of the self-ligating system in Pattern II patient without extractions with expansionist therapeutic goals in association with the use of Class II elastics. Due to the patient's rejection of orthognathic surgery, the compensatory treatment resulted in the camouflage of the skeletal discrepancies through the self-ligating system. Despite the surgical indication, the compensatory treatment presented significant dental movements, resulting in treatment success with considerable facial improvement (AU)

Administration of Lactobacillus plantarum Lp62 to dam rats at the end of delivery and during lactation affects TGF-ß1 level and nutritional milk composition, and body weight of pups.

PURPOSE: Lactobacillus plantarum Lp62 is a lactic acid bacteria strain that has been isolated from cocoa beans and exhibited probiotic potential. The influence of oral administration of L. plantarum Lp62 on the growth of rat's pups; on yield, cytokines and milk composition was studied. METHODS: Lactobacillus plantarum Lp62 is a lactic acid bacteria strain that has been isolated from cocoa beans. It was administered daily by gavage to Wistar rats (n = 8), from the 7th day before delivery and for 20 days during lactation, in a concentration of 1.44 × 109 CFU/rat. The dam and pups were weighed and milk was collected at 12th and 19th day for determination of protein, triglycerides, cholesterol and lactose by colorimetric assays. TGF-ß1 milk levels were analyzed by ELISA. The mammary glands of rats were removed for histological analysis. To detect statistical differences between the groups, tests of mean differences at a significance level of 5% was performed. RESULTS: Supplementation with L. plantarum L62 resulted in significant higher weight of pups (p < 0.05), with similar weight on dams (p > 0.05). The milk yield was not altered by L. plantarum treatment, but the levels of protein, triglycerides and cholesterol were increased (p < 0.05), with no difference in lactose concentration (p > 0.05). Levels of TGF-ß1 were higher in the milk of L. plantarum treatment (p < 0.05). CONCLUSIONS: The treatment of dams at the end of pregnancy and lactation with L. plantarum Lp62 increased nutritional content of milk, probably contributing to the higher weight of the pups. The higher levels of TGF-ß1 in the milk, could promote immune benefits to the pups. Further studies in this field are needed to prove the potential use of L. plantarum Lp62 as a probiotic.