To study human evolution [4], researchers sometimes use microstructures found in human teeth and their knowledge of the processes by which those structures grow. Human fetuses begin to develop teeth in utero. As teeth grow, they form a hard outer substance, called enamel, through a process called amelogenesis. During amelogenesis, incremental layers of enamel form in a Circadian rhythm. This rh...

amelogenesis imperfectas (ais) are clinically and genetically heterogeneous conditions characterized by a wide range of clinical features. these abnormalities of enamel formation are categorized into three main groups, hypoplastic, hypomaturation and hypocalcified with different modes of inheritance such as autosomal recessive (ar), autosomal dominant (ad) and x-lined recessive (xlr). in spite ...

A patient with Type I hypoplastic patterned amelogenesis imperfecta, subtype D, presented for prosthodontic evaluation. This article describes the developmental and pathophysiological background of this disease. A clinical report describing the diagnosis, treatment planning, and dental rehabilitation of the patient is reviewed.

Enamel anomalies – amelogenesis imperfecta, 1: 14000, several types with different heredity. Most frequent type is AD with hypomineralisation. Enamel matrix is normaly created, but the mineralisation is insufficient. The enamel is soft,peels off. Teeth are yellowbrown. Open bite is common. Reduction of pulp chamber occurs relatively early, so the reconstruction with crowns could be provided bef...

The aim of this study was to report the clinical findings and the screening of mutations of amelogenin gene of a 7-year-old boy with amelogenesis imperfecta (AI). The genomic DNA was extracted from saliva of patient and his family, followed by PCR and direct DNA sequencing. The c.261C>T mutation was found in samples of mother, father, and brother, but the mutation was not found in the sequence ...

This clinical report describes the oral rehabilitation of a very young child diagnosed with hypoplastic amelogenesis imperfecta. The specific treatment objectives being adequate patient management, eliminate tooth sensitivity while enhancing esthetics, masticatory function and improved self confidence. The treatment included full mouth rehabilitation with stainless steel crowns on posterior tee...