نتایج جستجو برای: enamel defects
تعداد نتایج: 143497 فیلتر نتایج به سال:
A study was completed in 1985/86 which examined the dental health of pre-school children from different ethnic groups and communities in South Africa: rural black, urban black, urban colored, urban Indian, and urban white. Enamel defects were recorded in primary teeth by use of the HHI, an index developed to measure hypocalcification and hypoplasia of enamel. The findings showed that colored ch...
Dental enamel hypoplasia; Prevalence; Eti ology, Objecti ve: This epidemiological study of dental enamel defects in a group of Nigerian school children assessed the prevalence, distributi on and associated eti ological factors of developmental defects of enamel. Method: The study subjects consisti ng of 2015 school children, (1088 males and 927 females) in the age range 4 to 16 years were rando...
OBJECTIVE To verify the relationship between lead concentration in the enamel of deciduous teeth and the presence of enamel defects and, consequently, with dental caries among preschool children. METHODS The sample consisted of 329 preschool children in Piracicaba, State of São Paulo: 132 attending municipal kindergartens close to industrial plants and 197 attending kindergartens in non-indus...
A female with congenital adrenal hyperplasia and enamel defects involving the permanent maxillary incisors and all canines and premolars received composite veneer splint overlays under general anesthesia. Possible etiological factors involved in the formation of the enamel defects and overall case management is discussed.
Enamel microabrasion can eliminate enamel irregularities and discoloration defects, thus improving the appearance of teeth. This paper presents the latest treatment protocol of enamel microabrasion to remove stains on the enamel surface. It has been verified that teeth submitted to microabrasion acquire a yellowish colour because of the thinness of the remaining enamel, revealing the colour of ...
PURPOSE The aim of this study was to examine the enamel thickness of the maxillary primary incisors of preterm children with very low birth weight (< 1,500 g) compared to full-term children with normal birth weight. METHODS A total of 90 exfoliated maxillary primary central incisors were investigated using light microscopy and scanning electron microscopy (SEM). Three serial buccolingual grou...
The nature of tooth enamel is of inherent interest to dental professionals. The current-day clinical practice of dentistry involves the prevention of enamel demineralization, the promotion of enamel remineralization, the restoration of cavitated enamel where demineralization has become irreversible, the vital bleaching of dental enamel that has become discolored, and the diagnosis and treatment...
BACKGROUND AND AIM: Trauma is a common problem among blindness and visually impaired children. The purpose of the current study was the assessment of the prevalence of traumatic dental injuries and the enamel defects resulted from these injuries among 6-12 years old blind children in comparison to the sighted children in Kerman. METHODS: In this cross-sectional study, sample size was considered...
GOALS AND BACKGROUND European studies have demonstrated that dental enamel defects and oral aphthae are observed in celiac disease (CD). We investigated this association in a US population. STUDY Biopsy proven CD patients and controls were recruited from a private dental practice and from CD support meetings. History of aphthae was taken and dental examination was performed by a single dentis...
Mutations in human and in mouse orthologous genes Amelx and Enam result in a diverse range of enamel defects. In this study we aimed to investigate the phenotype-genotype correlation between the mutants and the wild-type controls in mouse models of amelogenesis imperfecta using novel measurement approaches. Ten hemi-mandibles and incisors were dissected from each group of Amelx(WT), Amelx(X/Y64...
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