نتایج جستجو برای: Enamel Defects
تعداد نتایج: 143497 فیلتر نتایج به سال:
background and aims. the objectives of the present study were to investigate the prevalence and the position of enamel defects of primary teeth and hence to estimate the approximate time of an insult. material and methods. 121 children aged 3 to 5 years were included in the study. the modified developmental defects of enamel index was used to diagnose and classify the defects. the defects were ...
Dental enamel is the end product of amelogenesis, which can be considered to take place in three interrelated phases. When this complex sequence of cytological and physicochemica! events disrupted by genetic or environmental factors, the function of the ameloblasts may be disrupted permanently or temporarily. The result shows qualitative and quantitative defects that may range from a complete a...
Dental fluorosis has recently been diagnosed in wild marsupials inhabiting a high-fluoride area in Victoria, Australia. Information on the histopathology of fluorotic marsupial enamel has thus far not been available. This study analyzed the developmental and post-eruptive defects in fluorotic molar enamel of eastern grey kangaroos (Macropus giganteus) from the same high-fluoride area using ligh...
OBJECTIVES To investigate the frequency of developmental defects of enamel (DDE) in children with intellectual disability. SUBJECTS AND METHODS Children aged 5-18 years (72 children with intellectual disabilities and 72 controls) were included in the study. All the teeth were screened for developmental defects of enamel using the modified Developmental defects of enamel (mDDE) index. RESULT...
AIM OF THE STUDY Chemotherapeutic treatment in children and adolescents carries a risk of congenital tooth disorders and dentinoma. Study objective is to assess the correlation between tooth abnormalities, early complications of multidrug chemotherapy, and chemotherapeutics used in different antineoplastic therapies in children and adolescents. MATERIAL AND METHODS Enamel defects (development...
J. O. Turner was the first who described the developmental defect of permanent tooth caused by periapical inflammation of temporary predecessor. This disorder is most common in the upper front teeth and premolars. These disorders are collectively called developmental defects of enamel (DDE). They are visible deviations from the normal translucent enamel resulting from enamel organ dysfunction. ...
PURPOSE The aim of this study was to determine the prevalence of dental caries and enamel defects in a sample of predominantly African American and Hispanic children from an inner city Head Start program located in Connecticut. METHODS A total of 517 children were examined for dental caries and enamel defects. Children's caries experience was described using the dmfs/t indices, and dental def...
Background: Hyper-Immunoglobulin M (IgM) syndrome (HIGM) is a rare primary immunodeficiency in which defective B-cell isotype switching results in a phenotype characterized by elevated or normal serum IgM levels and low levels of other Ig classes, leading to an increased susceptibility to infection, neutropenia, autoimmune disorders, and malignancies. In this disease, a mutation occurs in the C...
Molar incisor hypomineralization (MIH) affects the permanent incisors and molars, whose undermineralized matrix is evidenced by lesions ranging from white to yellow/brown opacities to crumbling enamel lesions incapable of withstanding normal occlusal forces and function. Diagnosing the condition involves clinical and radiographic examination of these teeth, with known limitations in determining...
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