Oral rehabilitation of a child with dentinogenesis imperfecta: case report

Introduction and Objective: To report the clinic case of a 5-yearold boy with presenting yellow-gray teeth and generalized severe tooth crown wear. Case report: After clinical and radiographic examination, he was diagnosed with dentinogenesis imperfecta. After the behavior management, we performed the adequacy of oral environment and diet and oral hygiene instructions. Study models were obtained and then, the rehabilitation treatment was performed through acetate crowns and orthodontic bands. Conclusion: Early diagnosis and treatment are very important in preventing further damage to dental tissues, other oral diseases, and orthodontic changes. Therefore, knowledge of the etiology and family history of the patient is crucial.

Doses e épocas de aplicação de manganês via foliar no cultivo de soja convencional e em derivada transgênica RR / Rates and stages of foliar Mn application in the conventional soybean crop and its genetically modified RR descendants

O objetivo com este trabalho foi avaliar o efeito da aplicação foliar de manganês sobre as características agronômicas de cultivares de soja convencionais e em suas derivadas transgênicas RR (Roundup Ready®, evento GTS 40-3-2). O ensaio foi conduzido na Universidade Federal de Lavras (UFLA), Lavras, MG, em blocos casualizados, com três repetições e esquema fatorial 4 x 4 x 2, sendo quatro cultivares de soja, duas convencionais e suas derivadas RR (BRS Celeste e BRS Baliza RR; BRSGO Jataí e BRS Silvânia RR), quatro doses de Mn via foliar (0; 200; 400 e 600 g Mn ha-1) e dois estádios de aplicação (R1 ou R3). Foram avaliadas as características agronômicas: índice de acamamento; número de legumes por planta; peso de mil sementes e produtividade de sementes. A transgenia RR em soja não proporciona maior resposta à aplicação de Mn, sendo esta possivelmente condicionada ao genótipo. Há aumento na produtividade de sementes de soja das cultivares Celeste e Baliza RR em função da aplicação foliar de Mn, em solo com teor de Mn abaixo do nível crítico e produtividades máximas obtidas com 150 g Mn ha-1. A aplicação foliar de Mn realizada em R1 resulta em maior produtividade de sementes em relação à R3.

The aim of this study was to evaluate the influence of foliar Mn application in the agronomic characteristics of conventional cultivars soybean and its derived RR (Roundup Ready®, event GTS 40-3-2). The experiment was carried out at the Federal University of Lavras, MG state, using a randomized block design with three replications and a 4 x 4 x 2 factorial structure, with four soybean cultivars, two conventional and its derived RR (BRS Celeste and BRS Baliza RR; BRSGO Jataí and BRS Silvânia RR), four rates of foliar Mn (0; 200; 400 and 600 g Mn ha-1) and two stages of application (R1 or R3). It was evaluated the agronomic traits: lodging index, number of pods per plant, thousand seed weight and seeds yield. The response to the application of Mn might be conditioned to the genotype rather than to the RR genetic modification, with increase in seed yield of Baliza RR and Celeste with of foliar Mn application, in soil with Mn content below a critical level and maximum yields obtained with 150 g Mn ha-1. The foliar application of Mn in R1 results in a higher seed yield in relation to R3.