El propósito del presente estudio fue de determinar el proceso de cicatrización de tejido blando post exodoncia usando dos técnicas: la de Colgajo Rotatorio Palatino y la de Aproximación de Epitelios (Cicatrización por Segunda Intención). La muestra consistió de 15 animales de experimentación, conejos New Zeland, de entre 2kg – 2,5kg de peso. La muestra se subagrupó en 5 grupos, conformados cada uno por 03 animales de experimentación; a cada animal de experimentación se le realizaron cirugías bilaterales en una primera fase se realiza un corte en el tejido gingival a 1mm de los dientes incisivos superiores y se crea un defecto óseo de 1mm. de profundidad, simulando la exodoncia de una pieza dental, en la segunda fase se realizaron: a un lado el CRP, usando la técnica de García (2004), y en el otro lado sólo se realiza la aproximación de epitelios. Se recolectaron los datos clínicos e histológicos a los 0, 7, 21, 30 y 45 días post quirúrgicos. Para el análisis estadístico se utilizaron las pruebas de Chi Cuadrado, Correlación de Yates (correlación por continuidad) y la Prueba Exacta de Fisher; así como tablas de frecuencia y gráfica de porcentajes para demostrar los resultados encontrados. / --- The purpose of this study was to determine the process of soft tissue healing post extraction using two techniques: Rotatory Palatal Flap (RPF) and Approximation of epithelia (Healing by Second Intention) . The sample consisted of 15 experimental animals, rabbits New Zealand , between 2kg - 2.5 kg of weight. The sample was subgrouped into 5 groups , each one comprising 03 experimental animals, each experimental animal suffered bilateral surgeries, they were performed in two phases, in first phase it was performed a cut in the gum tissue , 1 mm aproximated to upper incisor teeth after it was created a 1mm of depht bone defect, simulating the extraction of a tooth , in the second phase were performed: on one side the RPF, applied using the technique of Garcia ( 2004 ) , and on the other side only was made the approximation of epithelia. The investigator collected clinical and histological data at 0, 7, 21 , 30 and 45 days post surgery . For statistical analysis was used Chi- Square, Correlation Yates (continuity correlation ) and Fisher 's exact test , as well as frequency tables and percentages chart to show the results.

Dissertação (mestrado)—Universidade de Brasília, Faculdade de Ciências da Saúde, 2007. / Submitted by Luis Felipe Souza (luis_felas@globo.com) on 2008-11-26T19:00:01Z No. of bitstreams: 1 Dissertacao_2007_ClaudioSilvaTeixeira.pdf: 418140 bytes, checksum: 9a9c23a1cab3514e69874b36dd492cf1 (MD5) / Approved for entry into archive by Georgia Fernandes(georgia@bce.unb.br) on 2009-02-10T17:38:50Z (GMT) No. of bitstreams: 1 Dissertacao_2007_ClaudioSilvaTeixeira.pdf: 418140 bytes, checksum: 9a9c23a1cab3514e69874b36dd492cf1 (MD5) / Made available in DSpace on 2009-02-10T17:38:50Z (GMT). No. of bitstreams: 1 Dissertacao_2007_ClaudioSilvaTeixeira.pdf: 418140 bytes, checksum: 9a9c23a1cab3514e69874b36dd492cf1 (MD5) / O forame palatino maior (FPM), por ser o ponto de emergência do feixe vásculo nervoso que se distribui para o palato duro, por estar próximo a região doadora de enxertos gengivais, por ser área da realização de técnicas anestésicas para dessensibilização do palato duro, e ainda por ser o ponto de entrada do canal palatino para que se alcance o gânglio pterigopalatino, torna-se fundamental em intervenções operatórias orais. Ciente de tais dados, tem-se com clareza a importância e necessidade de se conhecer a topografia deste forame. Foram estudados 141 crânios humanos macerados, dos quais 82 crânios masculinos e 59 crânios femininos, cedidos pelas Universidades Federais de Uberlândia e de São Paulo. As medidas foram coletadas com um paquímetro de precisão, marca “Mitutoyo”, e um compasso, entre os pontos de referência previamente padronizados. Os dados coletados foram submetidos à análise estatística. Os resultados desta pesquisa demonstraram que houve uma diferença significativa entre as medidas dos FPMs direito e esquerdo em relação à sutura interpalatina. Na maior parte dos crânios, o FPM estava localizado mais próximo ao terceiro molar. Os crânios masculinos apresentaram dimensões significativamente maiores do que os crânios femininos e, com exceção da distância entre o FPM esquerdo e o forame incisivo, todas as demais distâncias do FPM até os pontos tomados como referência podem ser considerados para se estimar o sexo. Conclui-se que os resultados encontrados se divergiram em relação a algumas das literaturas revisadas, sugerem-se novos estudos, principalmente estudos que considerem o forame incisivo e o túber maxilar como pontos de referência para definir a topografia do forame palatino maior. _______________________________________________________________________________________ ABSTRACT / The larger palatine foramen (FPM), is the emerging point of the vasculo neural bundle that it is distributed to the hard palate, close to the area that donates gingival grafts, is the area for performing anesthetic techniques for desensitization of the hard palate, and still, is the point of entrance of the palatine channel for reaching the pterigopalatine ganglion, becomes fundamental in oral surgical interventions. Therefore, the importance and need of knowing the topography of this foramen becomes clear. 141 softened human craniums were studied, from which 82 were masculine craniums and 59 were feminine craniums, provided in by the Federal Universities of Uberlândia and of São Paulo. Measures were obtained with a "Mitutoyo" precision pachymetry, and a compass, among the reference points previously standardized. The collected data were submitted to the statistical analysis. The results of this research demonstrated that there was a significant difference between the measures of right and left FPMs in relation to the interpalatine suture. In most of the craniums, the FPM was located closer to the third molar. The male craniums presented dimensions significantly larger than the female craniums and, except for the distance between left FPM and the incisive foramen, all the other distances from the FPM to the points taken as reference can be considered to be considered in order to estimate the sex. Some new investigations are suggested, mainly studies that consider the incisive foramen and the maxillary tuber as reference points to define the topography of the larger palatine foramen.

Made available in DSpace on 2016-01-26T12:51:31Z (GMT). No. of bitstreams: 1 eliasnaimkassis_tese.pdf: 1206838 bytes, checksum: 890b2f6915170e129c35065467aeb0f2 (MD5) Previous issue date: 2011-02-11 / The ingestion of alcohol by a mother during lactation changes the composition of the milk, resulting in the origin of ethanol and acetaldehyde in the milk, and turns more severe the effects of the ethanol in infant rats. Objective: This work aimed to study the effects of ethanol at the palatine bone and palatine epithelium of young infants in 21 days of postnatal life, administered to the experimental rats during lactation. Materials and Methods: The experimental rats received ethanol at 20% in the drinking fountain ad libitum during those 21 day of nursing. Another group of animals received an amount of water similar to that group without ethanol. The infant rats were put to death with an extra dose of anesthesia in their 21 days of life. Their heads were separated from their body, put in 85mls of a 80% alcohol solution, 10 ml of formalin and 5ml of acetic acid, the palate area was cut in serial sections by frontal plans, in the same level were the molar are located, the cuts were about 6 micrometers and were treated with hematoxylin-eosin. The nuclear parameters of the palate epithelium, the cytoplasmatic volume and cellular, the relation nucleon/cytoplasm, numerical density and superficial, the thickness of the epithelium were all estimate. The average body weight of the infant rats in the ethanol group was 20,20 g and the other group average weight was 34,86gr. Histologically, the palate epithelium was thinner and it had more numbers of smaller cells with a bigger nucleon. The palate bone had more delicate and less trabeculo calcificated, and smaller osteocyte. Conclusion: In this experiment, the ethanol induced a epithelial hypotrophy condition and palate bone more delicate and less calcificated, showing a direct affect in the cells and trabeculo palate and also the poor development of the intoxicated infant rats. / A ingestão materna de etanol durante a lactação altera a composição do leite, resulta no aparecimento do etanol e acetaldeído no leite, e exacerba os efeitos do etanol nos filhotes da rata. Objetivo: Este trabalho teve o objetivo de estudar os efeitos do etanol, ao epitélio palatino e osso palatino de filhotes lactantes em 21 dias de vida pós-natal, administrados nas ratas-mães durante a lactação. Materiais e Métodos: Para tal, foram utilizadas ratas que receberam etanol a 20% no bebedouro ad libitum durante os 21 dias de lactação. Os animais controles receberam um volume similar de água sem álcool. Os filhotes foram sacrificados com sobre dosagem anestésica no 21º dia. As cabeças foram separadas, fixadas em solução fixadora de álcool 80%- 85ml, formalina- 10 ml e ácido acético- 5ml, a região palatina foi seccionada seriadamente em planos frontais, ao nível dos molares, e os cortes de 6 micrometros foram tratados com hematoxilina-eosina . Os parâmetros nucleares do epitélio palatino foram estimados, assim como os volumes citoplasmáticos e celulares, relação núcleo/citoplasma, densidades numérica e superficial, e espessura epitelial. O peso corporal médio do filhote foi de 34,86 g no grupo controle e 20,20 g no tratado. Histologicamente, o epitélio palatino mostrou-se mais adelgaçado, constituído de células abundantes e menores com núcleos maiores. O osso palatino mostrou trabéculas mais delicadas e menos calcificadas e com osteócitos de menor tamanho. Conclusões: Neste experimento, o etanol, induziu no quadro de hipotrofia epitelial e osso palatino mais delicado e pouco calcificado, indicando uma ação direta nas células e trabéculas do palato, além de retardar o desenvolvimento de filhotes intoxicados.

This experimental study investigated the relationship between the independent measures of font selection, type size, and type rendering technology and the dependent measures of legibility, as measured by the Chapman-Cook speed of reading test, as well as comprehension, as measured by a series of questions from the verbal comprehension section of the Graduate Record Exam. An electronic instrument presented test items in 12 different typographic styles. The study tested 117 college students at a university in southwestern Virginia. Each participant encountered anti-alias type rendering style and the orthochromatic type rendering style while participants were randomly assigned to either Helvetica or Palatino (font selection) and 8, 10 or 12 point type size. Results indicated that the 12 point type size was read more quickly than either 8 point type or 10 point type. There was also an interaction between font selection and type rendering technology for speed of reading: Helvetica without an anti-alias was read more quickly than Helvetica with an anti-alias and more quickly than Palatino without an anti-alias. These findings contradict an earlier, similar study. There were no significant results with regard to comprehension. <i>[Vita removed Oct. 13, 2010. GMc]</i> / Ph. D.