Results 171 to 180 of about 10,573 (205)
Some of the next articles are maybe not open access.
Tooth agenesis in down syndrome
American Journal of Medical Genetics, 1995AbstractWe studied the frequency and pattern of tooth agenesis in a Danish population with Down syndrome, trisomy 21 (46 females and 54 males). The control group consisted of a normal Danish population (2424 females and 2431 males) [Rølling, 1980: Scand J Dent Res 88:365–369; Ravn and Nielsen, 1973: Tandlaægebladet 77:12–22].
B G, Russell, I, Kjaer
openaire +2 more sources
Tooth agenesis in a Portuguese population
International Orthodontics, 2012The aim of this retrospective study was to evaluate the prevalence and pattern of hypodontia in the permanent dentition, including and excluding third molars, in a Portuguese sample.The study group comprised 2888 patients, observed between 2005 and 2009 at the Dentistry Clinic of the Instituto Superior de Ciências de Saúde-Norte (ISCSN, Portugal).
Ana, González-Allo +4 more
openaire +2 more sources
Journal of Clinical Pediatric Dentistry, 2011
Developmental disturbances involving the oral cavity affect the growth and development of a child. Tooth agenesis may be associated with a number of documented syndromes or may present as an isolated entity. The presence or absence of teeth is decided by the influence of various genes and their signaling pathways.
Meena, Kulkarni +2 more
openaire +2 more sources
Developmental disturbances involving the oral cavity affect the growth and development of a child. Tooth agenesis may be associated with a number of documented syndromes or may present as an isolated entity. The presence or absence of teeth is decided by the influence of various genes and their signaling pathways.
Meena, Kulkarni +2 more
openaire +2 more sources
The role of MSX1 in tooth agenesis in Iranians
International Journal of Paediatric Dentistry, 2007Introduction. MSX1 gene has a critical role in craniofacial development, the aim of this case–control study is to test the hypothesis that MSX1 mutation contributes to congenital tooth agenesis in Iranians.Materials and methods. The study group consisted of 20 affected individuals with tooth agenesis of lower second premolars or upper lateral ...
Massoud, Seifi +2 more
openaire +2 more sources
MMP1 and MMP20 contribute to tooth agenesis in humans
Archives of Oral Biology, 2011 Variations in genes that are critical for tooth formation may contribute to the tooth agenesis. MMPs are potential candidate genes for dental alterations based on the roles they play during embryogenesis. The aim of this study was to investigate the possible association between MMP1, MMP3, and MMP20 and tooth agenesis.One hundred sixty-seven nuclear ...
Erika Calvano Küchler +2 more
exaly +3 more sources
Genetic basis of tooth agenesis
Journal of Experimental Zoology Part B: Molecular and Developmental Evolution, 2009AbstractTooth agenesis or hypodontia, failure to develop all normally developing teeth, is one of the most common developmental anomalies in man. Common forms, including third molar agenesis and hypodontia of one or more of the incisors and premolars, constitute the great majority of cases.
openaire +2 more sources
Patterns of tooth agenesis in patients with orofacial clefts
European Journal of Oral Sciences, 2013Orofacial clefts are a common oral disorder associated with tooth agenesis. As information on the simultaneous absence of teeth can be an aid in treatment planning, a large sample of orofacial cleft patients was examined. The sample consisted of 910 patients with cleft lip and palate.
Arjen J van Wijk, Edwin M Ongkosuwito
exaly +4 more sources
Oral Clefts and Syndromic Forms of Tooth Agenesis as Models for Genetics of Isolated Tooth Agenesis
Journal of Dental Research, 2003Genetic defects responsible for tooth agenesis are only now beginning to be uncovered. MSX1 and PAX9 have been associated with tooth agenesis in mice and humans, but interestingly for humans, these genes are associated with specific missing teeth. Mouse models also show that specific genes contribute to the development of specific types of teeth.
openaire +2 more sources
Tooth agenesis and craniofacial morphology in an orthodontic population
American Journal of Orthodontics and Dentofacial Orthopedics, 2002Previous reports have produced conflicting conclusions regarding the relationship among tooth agenesis, the congenital absence of teeth, and variations in craniofacial morphology. Traditional cephalometric assessment and computer-assisted morphometric analysis of jaw size were used to reexamine this relationship in a white orthodontic population.
Heidi, Tavajohi-Kermani +2 more
openaire +2 more sources
[Correlation between the phenotype and genotype of tooth agenesis patients by tooth agenesis code].
Zhongguo yi xue ke xue yuan xue bao. Acta Academiae Medicinae Sinicae, 2013To analyze the correlation between the phenotype and genotype of tooth agenesis using the tooth agenesis code (TAC) and the traditional descriptor for missing teeth.Patients with isolated hypodontia caused by PAX9 or MSX1 mutation reported before May 2007 were enrolled. The teeth missing rate and TAC code were recorded.
Yu, Gong +3 more
openaire +1 more source