Tooth Agenesis
Mostrando 13-21 de 21 artigos, teses e dissertações.
-
13. Caracterização fenotípica de famílias com hipodontia no Hospital Universitário de Brasíia, Brasília-DF
Odontogenesis is the process of tooth development, resulting from epithelialectomesenchymal interactions. In humans, alterations in the dental development process are called dental anomalies. One of the most common of these is tooth agenesis, which is a change in number, due to the absence of dental germ formation. When agenesis involves up to six teeth, exc
Publicado em: 2008
-
14. Tooth abnormalities, soft tissue changes and craniofacial morphology in patients with velocardiofacial syndrome and G/BBB syndrome / Disgenesias dentárias, alterações de tecido mole e morfologia craniofacial em pacientes com síndrome velocardiofacial e síndrome G/BBB
This study investigated the prevalence of tooth abnormalities, soft tissue changes and cephalometric analysis in patients with velocardiofacial syndrome and G/BBB syndrome. The presence of tooth abnormalities was evaluated in patients older than six years; cephalometric analysis was conducted on lateral cephalograms obtained before any orthodontic interventi
Publicado em: 2007
-
15. Busca de variações nos genes MSX-1 : relação com a hipodontia / Search of variations in genes MSX-1: relation with the hipodontia
CHAPER I: Through a review of the literature, this article discusses the genetic mechanisms that control tooth morphogenesis. Emphasis is placed upon the structure and function of some key molecules that participate in interactions between its epithelial-mesenchimal components. In this paper we will can understand the mechanisms that control tooth morphogene
Publicado em: 2007
-
16. Clinical, radiographic and molecular characterization of the Van Der Woud Syndrome / Caracterização clínica, radiográfica e molecular da Síndrome de Van Der Woude
The Van der Woude syndrome (VWS) is characterized by the presence of congenital lower lip pits associated or not to cleft lip and/or palate. This disorder is the most common syndrome affecting patients with cleft lip and palate; despite of that, it is underdiagnosed. After DNA sequencing in 2001, there was an increase in the interest and development of studi
Publicado em: 2006
-
17. "Condições bucais de pacientes com craniossinostoses múltiplas sindrômicas e síndrome de Treacher Collins." / "Oral health status of patients with syndromic craniosynostosis and Treacher Collins syndrome."
Two groups of patients were evaluated in an attempt to achieve more information on the oral health status, association with cleft lip and palate, soft tissue alterations and prevalence of dental anomalies in patients with craniofacial syndromes. One group comprised 19 patients with craniosynostosis syndromes (Apert, Crouzon, Pfeiffer and Saethre-Chotzen synd
Publicado em: 2004
-
18. Investigation of promoter region polymorphisms in the LEF 1 gene in individuals with hypodontia / Investigação de polimorfismos na região promotora do gene LEF 1 em individuos com agenesia dental
Numerous tenns have been used to describe congenital missing teeth. Hypodontia denotes congenital absence of one or a few teeth in the primary and/or permanent dentition. Agenesis of numerous teeth, commonly associated with specific syndromes and/or severe systemic abnornalities is classified as oligodontia. Anodontia, an extreme expression of oligodontia in
Publicado em: 2003
-
19. Haploinsufficiency of MSX1: a Mechanism for Selective Tooth Agenesis
Previously, we found that the cause of autosomal dominant selective tooth agenesis in one family is a missense mutation resulting in an arginine-to-proline substitution in the homeodomain of MSX1. To determine whether the tooth agenesis phenotype may result from haploinsufficiency or a dominant-negative mechanism, we have performed biochemical and functional
American Society for Microbiology.
-
20. Pathogenic mechanisms of tooth agenesis linked to paired domain mutations in human PAX9
Mutations in the paired-domain transcription factor PAX9 are associated with non-syndromic tooth agenesis that preferentially affects posterior dentition. Of the 18 mutations identified to date, eight are phenotypically well-characterized missense mutations within the DNA-binding paired domain. We determined the structural and functional consequences of thes
Oxford University Press.
-
21. The Transcription Factor Gene Nfib Is Essential for both Lung Maturation and Brain Development
The phylogenetically conserved nuclear factor I (NFI) gene family encodes site-specific transcription factors essential for the development of a number of organ systems. We showed previously that Nfia-deficient mice exhibit agenesis of the corpus callosum and other forebrain defects, whereas Nfic-deficient mice have agenesis of molar tooth roots and severe i
American Society for Microbiology.