Tooth Agenesis
Mostrando 1-12 de 21 artigos, teses e dissertações.
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1. Association between agenesis and root morphology of anterior teeth
Resumo Introdução A agenesia dentária pode afetar a raiz radicular e deve ser considerada no tratamento ortodôntico. Objetivo: O objetivo deste estudo foi avaliar a associação entre agenesia dentária e a morfologia radicular dos dentes anteriores. Material e método Foram avaliadas em 102 radiografias periapicais dos dentes anteriores de 51 indiví
Rev. odontol. UNESP. Publicado em: 20/12/2019
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2. The functional EGF+61 polymorphism and nonsyndromic oral clefts susceptibility in a Brazilian population
AbstractNonsyndromic oral clefts are considered a problem of public health in Brazil, presenting a multifactorial etiology that involves genetic and environmental components, such as maternal alcohol consumption. Several candidate genes have been investigated to identify some association with nonsyndromic clefts risk. The epidermal growth factor (EGF) gene i
J. Appl. Oral Sci.. Publicado em: 2015-08
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3. Genetics of tooth agenesis: how to move the field forward
J. Appl. Oral Sci.. Publicado em: 2013-06
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4. PAX9 polymorphism and susceptibility to sporadic non-syndromic severe anodontia: a case-control study in southwest China
Our research aimed to look into the clinical traits and genetic mutations in sporadic non-syndromic anodontia and to gain insight into the role of mutations of PAX9, MSX1, AXIN2 and EDA in anodontia phenotypes, especially for the PAX9. Material and Methods The female proband and her family members from the ethnic Han families underwent complete oral examina
J. Appl. Oral Sci.. Publicado em: 2013-06
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5. Comprehensive intermaxillary tooth width proportion of Bangkok residents
Proper occlusion depends on the correct width ratio between upper and lower teeth, known as Bolton's ratio. In fact, this ratio can be calculated for each pair of teeth from the central incisor to the first permanent molar. This set of ratios, known as comprehensive cumulative percentage ratios (CPRs), can be used not only to determine which tooth or teeth h
Brazilian Oral Research. Publicado em: 2011-04
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6. Transcriptional analysis of the human PAX9 promoter
OBJECTIVES: PAX9 belongs to the Pax family of transcriptional factor genes. This gene is expressed in embryonic tissues such as somites, pharyngeal pouch endoderm, distal limb buds and neural crest-derived mesenchyme. Polymorphisms in the upstream promoter region of the human PAX9 have been associated with human non-syndromic tooth agenesis. In the present s
Journal of Applied Oral Science. Publicado em: 2010-10
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7. Estudo comparativo sobre a influência das agenesias dentárias no padrão cefalométrico
This study aimed to ascertain the influence of dental agenesis in cephalometric pattern in patients residing in the city of João Pessoa / PB, in the year 2009. The sample consisted of 52 patients with congenital absence of one or more teeth (excluding third molars) of both sexes in mixed dentition (group 1, n = 29 patients, aged 8 to 12 years, mean 9.93 1.4
Publicado em: 2010
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8. Uma Busca pelas causas genéticas de agenesias dentárias não sindrômicas
A agenesia dentária é uma das anomalias do desenvolvimento dentário mais comum em humanos. No entanto, sua etiologia permanece desconhecida. A agenesia pode ocorrer como parte de uma síndrome ou pode estar presente em um padrão familiar isolado, sendo sua freqüência variável nas populações humanas. Estudos em nível molecular têm sido realizados a
Publicado em: 2010
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9. Triagem de mutação no éxon 3 do gene IRF6 em indivíduos com fissura labiopalatina e agenesia dentária: padronização de protocolo para seqüenciamento de DNA genômico a partir de saliva / Screening of mutation in IRF6 gene of subjects with cleft lip and palate and tooth agenesis: protocol standardization for sequencing of genomic DNA extracted from saliva
Cleft lip and palate and tooth agenesis are considered changes in embryonic development. These phenotypes occur as a result of the interaction of genetic and environmental factors, suggesting a multifactorial inheritance pattern. Among the candidate genes for these phenotypes IRF6 appears as one of the most important. Direct sequencing, among other technique
Publicado em: 2009
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10. Análise das condições bucais em crianças sobreviventes ao câncer infantil
The aim of this investigation was to examine the oral conditions in childhood cancer long-term survivors, characterize the sample, comparing the prevalence of dental anomalies in the case studies with the control group. Possible correlations between the type and duration of the antineoplastic treatment as well as the patients age during the treatment and the
Publicado em: 2009
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11. Analise do padrão de metilação da região promotora do gene humano PAX9 (-947 - +251) e analise in vitro da sua atividade transcricional / New insights into methylation pattern and transcriptional activity of human PAX9 gene (-947 - +251) in vitro
PAX9 is a key regulator during tooth development and plays an essential role in the patterning of murine and human dentition. In humans, mutations in PAX9 are associated with unique phenotypes of familial tooth agenesis that mainly involve posterior teeth. The objectives of this study were to gain new insights into the transcriptional activity and DNA methyl
Publicado em: 2009
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12. Manifestações bucais em indivíduos com oligondotia e seus familiares do Hospital Universitário de Brasilia
Tooth agenesis is the absence of formation of deciduous and/or permanent tooth resulting from disturbances in odontogenesis. Being a clinically heterogeneous condition, it may affect various tooth combinations and be associated with other dental anomalies. Clinically, dental agenesis may be classified as hypodontia, oligodontia or anodontia, based on the num
Publicado em: 2008