242 resultados para Falência do enxerto


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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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It was evaluated the influence of rootstocks 'IAC 766', 'IAC 572', 'IAC 313', 'IAC 571-6' and 'Ripária do Traviú' and the pruning periods in the duration of phenological stages and in the accumulation of degree-days on grape 'Niagara Rosada' .The experiment was conducted in Louveira, SP. The treatments consisted of five rootstocks and three times of pruning, the experimental design being used in a completely randomized split plot with five replications, and plots represented by rootstocks and the subplots were pruning. After pruning the grapevine, were realized evaluations for phenological stages, using the criterion of Eichhon e Lorenz (1984). ). In three seasons of pruning, based on phenological stages, it was calculated the length of the periods: pruning to budding, pruning to the beginning of the flowering, pruning to the beginning of fruiting, pruning to beginning of ripening of the bunches, pruning the beginning of the harvest. Taking as a basis the cycle length of the vine and the average daytime temperatures, it was calculated the accumulation of degree-days. Data were submitted to ANOVA and Tukey test at 5% significance level. It was obtained in the summer pruning the reduction in duration of the phenological stages of 'Niagara Rosada' grafted on the rootstock 'Ripária Traviú'. The longer duration of the cycle and accumulation of degree-day of 'Niagara Rosada' cultivar were obtained with the rootstocks 'IAC 572' and 'IAC 313' pruning in the winter.

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

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Estudou-se o efeito da inoculação com fungo micorrízico arbuscular (FMA), Glomus etunicatum, Glomus clarum, ou Scutelospora heterogama, e da adição de fósforo solúvel (15, 30, 45, 60, 120 e 240 mg de P kg-1 de terra) sobre as variáveis altura, número de folhas, diâmetro do caule, massas vegetais aérea e radicular, teores de nutrientes nas folhas e colonização micorrízica no porta-enxerto limoeiro Cravo (Citrus limonia (L.) Osbeck). Os FMAs, Glomus etunicatum e Glomus clarum, e doses crescentes de fósforo exerceram efeitos significativos sobre essas variáveis. O efeito da inoculação sobre as variáveis de crescimento vegetal foi mais acentuado nos tratamentos com adição de 30 a 60 mg de P kg-1 de terra. Para o teor de P foliar, o efeito da inoculação foi mais acentuado nos tratamentos adicionados de 120 a 240 mg de P kg-1 de terra. A inoculação com estes FMAs aumentou a eficiência do limoeiro Cravo em absorver nutrientes, tanto que as variáveis estudadas em plantas inoculadas na ausência de adubação fosfática superaram às de plantas não inoculadas em substrato adicionado de 240 mg de P kg-1 de terra.

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The pets, mostly dogs and cats are susceptible to a variety of situations that can lead to acute kidney failure, such as infection and intoxication, besides other common causes such as dehydration or other pre-existing diseases. The abrupt decrease in renal function in these animals characterizes a severe clinical condition and requires specialized veterinary medical care since it increases the death. Early diagnosis is an important factor for the survival of these animals and so is the appropriate treatment. New technologies on diagnosis and treatment of serious diseases in veterinary medicine have made acute renal failure successfully reversed by hemodialysis in cases where conventional therapy may not be effective. In cases like that, hemodialysis treatment may be the only chance of survival for the animals, which makes this therapy more and more important and necessary, especially in referral centers of veterinary assistance

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The early tooth loss and periodontal disease often leave inadequate bone volume for installation of osseointegrated implants. The autogenous bone graft is considered the gold standard for reconstruction of residual bone defects. Some surgical techniques can be performed, including extra or intraoral donor sites depending on the degree of bone loss, depending on surgical-prosthetic planning and general condition of the patient. The intraoral bone grafts offer a safe option to rebuilt bone volume in smaller rehabilitations, with low morbidity and minimal postoperative discomfort. Among the possible donor sites, the mandibular ramus and body, which offer predominantly cortical bone, and the chin area, which offers corticomedullary bone tissue, can be harvested. The graft will be suitable both in quantity and quality, preserving the capacity of osteogenesis, osteoinduction and osteoconduction, which differentiate autogenous grafts from other biomaterials. The aim of this study was to report a clinical case in which the mandibular ramus graft was used for total reconstruction of an edentulous maxilla, showing that even large areas can be reconstructed with grafts from intraoral origin. All the steps that allowed the complete reconstruction of the maxilla done by an intraoral donor area are listed in the text, culminating in an extremely satisfactory clinical result.

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Destruction of bone and periodontal ligament as a result of periodontal disease can lead to anatomical defects in the furcation area. Treatment of these lesions is a major challenge to the clinician. Periodontal instruments have limited access to this area and plaque and calculus removal from root surfaces are extremely difficult. For proper treatment planning a number of factors must be taken into consideration to achieve immediate and long term success. Surgical therapy associated with bone grafts may be a viable option in the treatment of class II furcation defects, aiming to restore lost tissues. The aim of this paper is to report a clinical case where a simplified surgical approach with the use of autogenous graft was used to treat a class II furcation defect Twelve months after the surgery, an increase in clinical attachment level and pocket depth reduction resulted in a complete closure of the furcation lesion.

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Several periodontal procedures have been described in the literature to correct mucogingival alterations or to achieve root coverage. The epithelized free gingival graft is a well established periodontal surgery to increase the width of keratinized gingiva with good stability in the long term follow up. However, this procedure is not commonly used in aesthetic areas since the grafted tissue presents differences of color and contrast. The free connective tissue graft emerges as a viable option to increase attached gingiva in areas where aesthetics results are required. The removal of an epithelized free gingival graft from the hard palate region creates a sore and raw surgical wound that slowly repairs, while the connective tissue graft produces only a line of incision that can be easily sutured promoting a more confortable outcome for the patient. This paper aims to report a case where a free connective tissue graft was used to increase the width of attached gingiva in a tooth with gingival recession. This technique presented satisfactory esthetics results, with a better contrast and color matching with the surrounding tissues.